+++ /dev/null
-.Xrefs
-config.log
-config.status
-configure
-Makefile
-Makefile.in
-.deps
-TAGS
+++ /dev/null
-.Xrefs
-config.log
-config.status
-configure
-Makefile
-Makefile.in
-.deps
-TAGS
+++ /dev/null
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-demo_SCRIPTS = baseclean.sh basesetup.sh obdfsclean.sh obdfssetup.sh \
- obdtest.sh snap3clean.sh snap3set.sh snapclean.sh snapdel.sh \
- snaprest.sh snaprestclean.sh snapsetup.sh snaptest.sh
-demo_DATA = config.sh
-EXTRA_DIST = $(demo_SCRIPTS) $(demo_DATA)
+++ /dev/null
-#!/bin/sh
-# Script to remove the loopback device and temp file created in newtest.sh
-#
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-OBDDIR="`dirname $0`/.."
-. $OBDDIR/demos/config.sh
-
-
-mount | grep "$MNTOBD " > /dev/null 2>&1
-if [ x$? = x0 ]; then
- echo "Stuff still mounted on $MNTOBD"
- exit 1
-fi
-
-mount | grep "$MNTSNAP " > /dev/null 2>&1
-if [ x$? = x0 ]; then
- echo "Stuff still mounted on $MNTSNAP"
- exit 2
-fi
-
-mount | grep "$MNTSNAP2 " > /dev/null 2>&1
-if [ x$? = x0 ]; then
- echo "Stuff still mounted on $MNTSNAP2"
- exit 3
-fi
-
-
-if [ "$LOOPDEV" ]; then
- losetup -d $LOOPDEV
- rmmod loop > /dev/null 2>&1
-fi
-
-if [ "$LOOPDEV" -a "$TMPFILE" -a -f "$TMPFILE" ]; then
- rm -i $TMPFILE
-fi
-
+++ /dev/null
-#! /bin/sh
-# Get the locations for the files from a single place to avoid confusion
-#
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-OBDDIR="`dirname $0`/.."
-
-# source config info
-. $OBDDIR/demos/config.sh
-
-insmod obdclass
-insmod obdext2
-insmod obdfs
-
-# module configuration
-if [ "$MODCONF" -a -f $MODCONF ]; then
- if [ -z "`grep -i "alias *char-major-$OBDMAJ *obdclass" $MODCONF`" ]; then
- if [ -d /etc/modutils ]; then
- # Debian-style modules configuration.
- echo "alias char-major-${OBDMAJ} obdclass" > /etc/modutils/obd
- update-modules
- else
- echo "alias char-major-${OBDMAJ} obdclass" >>$MODCONF
- fi
- fi
-fi
-
-
-# temp file
-if [ "$LOOPDEV" -a "$TMPFILE" -a -f $TMPFILE ]; then
- echo "$TMPFILE exists; I'm unwilling to overwrite it. Remove [N/y]?" 1>&2
- rm -i $TMPFILE
- [ -f $TMPFILE ] && exit 1
-fi
-[ "$TMPFILE" ] && dd if=/dev/zero of=$TMPFILE bs=1k count=$TMPSIZE
-
-
-# loop device
-if [ "$LOOPDEV" ]; then
- insmod loop > /dev/null 2>&1
- if [ -a "`losetup $LOOPDEV 2> /dev/null`" ]; then
- echo "It appears that $LOOPDEV is in use. Unable to continue" 1>&2
- echo "You need to clean up $LOOPDEV (via cleanup.sh),"
- echo "or you can change which device is used in demos/config.sh" 1>&2
- # undo previous
- [ "$TMPFILE" ] && rm $TMPFILE
- exit 2
- fi
- losetup $LOOPDEV $TMPFILE
-fi
-
-# Ensure that we have the correct devices for OBD to work
-[ ! -c /dev/obd0 ] && mknod /dev/obd0 c $OBDMAJ 0
-[ ! -c /dev/obd1 ] && mknod /dev/obd1 c $OBDMAJ 1
-[ ! -c /dev/obd2 ] && mknod /dev/obd2 c $OBDMAJ 2
-
-
-if [ "$BASEDEV" ]; then
- # echo "No mke2fs!!"
- mke2fs -r 0 -b 4096 $BASEDEV
-else
- echo "\$BASEDEV not defined in demos/config.sh. Please fix!"
- [ "$LOOPDEV" ] && losetup -d $LOOPDEV
- [ "$TMPFILE" ] && rm $TMPFILE
- exit 3
-fi
+++ /dev/null
-#!/bin/sh
-# File which holds configuation parameters in a single place to avoid any
-# mismatch between scripts (especially the cleanup scripts, which are
-# destructive).
-#
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-#set -vx
-
-# Major number for OBD devices
-OBDMAJ=186
-
-# Module configuration file
-[ -f /etc/conf.modules ] && MODCONF=/etc/conf.modules
-[ -z "$MODCONF" -a -f /etc/modules.conf ] && MODCONF=/etc/modules.conf
-
-# If LOOPDEV is empty (""), then no loopback device will be configured.
-# If TMPFILE is empty (""), then no temporary file will be created for loop.
-[ "$TMPFILE" ] || TMPFILE="/tmp/obdfs.tmpfile"
-[ "$TMPSIZE" ] || TMPSIZE=10240
-[ -b /dev/loop/0 ] && LOOPDEV=/dev/loop/0
-[ -z "$LOOPDEV" -a -b /dev/loop0 ] && LOOPDEV="/dev/loop0"
-
-# If LOOPDEV is empty, then it is assumed that BASEDEV is a real block device
-# that doesn't mind being overwritten - don't use a partition with data on it!!
-LOOPDEV="/dev/loop0"
-BASEDEV="/dev/loop0"
-
-# The following are mount points for the filesystems during the test.
-MNTOBD="/mnt/obd"
-MNTSNAP="/mnt/snap"
-MNTSNAP2="/mnt/snap2"
-
-# This is where the snapshot table will be stored:
-SNAPTABLE="/tmp/obdfs.snaptable"
-
-# A simple routine called by most of the scripts to help debugging. The
-# kernel code has a lot of debugging statements, so this helps us keep
-# track of what is going on in user-land to generate the kernel messages.
-plog () {
- if [ "$1" = "log" ]; then
- shift
- logger -p kern.info "******** $* **********"
- echo "$*"
- else
- logger -p kern.info "****start**** $* *****"
- echo "$*"
- $*
- logger -p kern.info "*****end***** $* *****"
- fi
-}
-
-# A routine to display a command, and prompt user if it should be run
-qrun () {
- echo
- echo -n "Run '$*' [Y/n]?'";
- read JUNK
-
- case $JUNK in
- n*|N*) echo "'$*' not run" ;;
- *) plog $* ;;
- esac
-}
+++ /dev/null
-#!/bin/sh
-# Utility script for cleaning up a simple OBDFS mounted filesystem
-#
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-OBDDIR="`dirname $0`/.."
-. $OBDDIR/demos/config.sh
-
-plog umount $MNTOBD
-#killall pupdated # stop the OBDFS flush daemon
-plog rmmod obdfs
-
-plog log "CLEANUP/DETACH"
-$OBDDIR/utils/obdctl << EOF
-device 0
-cleanup
-detach
-quit
-EOF
-
-plog rmmod xfs
-plog rmmod xfs_support
-plog rmmod pagebuf
-plog rmmod obdfilter
-plog rmmod obdext2
-plog rmmod obdclass
-
-$OBDDIR/demos/baseclean.sh
+++ /dev/null
-#! /bin/bash
-# Utility script for configuring a simple OBDFS mount
-#
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-OBDDIR="`dirname $0`/.."
-. $OBDDIR/demos/config.sh
-
-$OBDDIR/demos/basesetup.sh
-
-if [ x$? != x0 ]; then
- echo "Error running basesetup.sh"
- exit 4;
-fi
-
-#insmod $OBDDIR/class/obdclass.o
-#insmod $OBDDIR/ext2obd/obdext2.o
-#insmod $OBDDIR/obdfs/obdfs.o
-
-plog log "ATTACHING device 0 SETUP $BASEDEV"
-$OBDDIR/utils/obdctl << EOF
-device 0
-# attach obdfilter
-# setup $BASEDEV reiserfs
-attach obdext2
-setup $BASEDEV
-quit
-EOF
-
-[ ! -d "$MNTOBD" ] && mkdir $MNTOBD
-plog mount -t obdfs -odevice=/dev/obd0 none $MNTOBD
+++ /dev/null
-#! /bin/bash
-# Utility script to create an OBD snapshot. If an existing filesystem is
-# not already mounted on /mnt/obd, we call the basic OBD setup script to
-# create and mount a filesystem for us.
-#
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-OBDDIR="`dirname $0`/.."
-. $OBDDIR/demos/config.sh
-
-[ ! -d $MNTOBD/lost+found ] && $OBDDIR/demos/obdfssetup.sh
-
-echo "echo yesterday >> $MNTOBD/hello" # create a file
-echo "yesterday" > $MNTOBD/hello
-echo "echo testing > $MNTOBD/goodbye" # create a file
-echo "testing" > $MNTOBD/goodbye
-plog ln -s hello $MNTOBD/link # create a symbolic link
-cd $MNTOBD ; plog touch a b c ; cd - # create a file
+++ /dev/null
-#!/bin/sh
-# Utility script for cleaning up a third snapshot created by setup3.sh
-#
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-OBDDIR="`dirname $0`/.."
-. $OBDDIR/demos/config.sh
-
-plog umount $MNTSNAP2
-
-plog log "CLEANUP /dev/obd3"
-$OBDDIR/utils/obdcontrol -f << EOF
-device /dev/obd3
-cleanup
-detach
-quit
-EOF
-
-$OBDDIR/demos/snapclean.sh
+++ /dev/null
-#!/bin/sh
-# Utility script for creating a third snapshot.
-#
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-OBDDIR="`dirname $0`/.."
-. $OBDDIR/demos/config.sh
-
-[ ! -d $MNTSNAP/lost+found ] && $OBDDIR/demos/snapsetup.sh
-
-$OBDDIR/demos/snaptest.sh
-
-sync
-sleep 5 # let syslog logs get written
-
-plog log "CREATING /dev/obd3 snapshot"
-$OBDDIR/utils/obdcontrol -f << EOF
-snaptable
-$SNAPTABLE
-a
-3
-now
-q
-y
-snapset 0 $SNAPTABLE
-device /dev/obd3
-attach obdsnap 0 3 0
-setup
-quit
-EOF
-
-[ ! -d "$MNTSNAP2" ] && mkdir $MNTSNAP2
-plog mount -t obdfs -oro,device=/dev/obd3 none $MNTSNAP2
+++ /dev/null
-#! /bin/bash
-# Utility script for cleaning up snapshots and removing modules.
-#
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-OBDDIR="`dirname $0`/.."
-. $OBDDIR/demos/config.sh
-
-plog umount $MNTOBD
-plog umount $MNTSNAP
-
-plog log "CLEANUP /dev/obd2 /dev/obd1"
-$OBDDIR/utils/obdcontrol -f << EOF
-device /dev/obd2
-cleanup
-detach
-device /dev/obd1
-cleanup
-detach
-quit
-EOF
-
-rmmod obdsnap
-
-rm $SNAPTABLE
-$OBDDIR/demos/obdfsclean.sh
+++ /dev/null
-#!/bin/sh
-# Utility script to test deleting a snapshot that has been previously
-# created as the setup.sh script does.
-#
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-OBDDIR="`dirname $0`/.."
-. $OBDDIR/demos/config.sh
-
-[ ! -d $MNTSNAP/lost+found ] && echo "need to run obdsetup.sh first" && exit 1
-[ ! -f $MNTOBD/hosts ] && $OBDDIR/demos/snaptest.sh
-
-plog umount $MNTSNAP
-plog umount $MNTOBD
-
-sync
-sleep 1
-plog log "STARTING snapdelete"
-$OBDDIR/utils/obdcontrol -f << EOF
-device /dev/obd2
-connect
-snapdelete
-disconnect
-cleanup
-detach
-snaptable
-$SNAPTABLE
-d
-2
-q
-y
-snapset 0 $SNAPTABLE
-EOF
-plog log "COMPLETE snapdelete"
-plog mount -t obdfs -odevice=/dev/obd1 none $MNTOBD
+++ /dev/null
-#!/bin/sh
-# Utility script to test restoring a previous snapshot. This will destroy
-# the "current" snapshot and restore the old one in its place.
-#
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-OBDDIR="`dirname $0`/.."
-. $OBDDIR/demos/config.sh
-
-[ ! -d $MNTSNAP/lost+found ] && echo "need to run snapsetup.sh first" && exit 1
-
-plog umount $MNTSNAP
-plog umount $MNTOBD
-
-mount | grep "$MNTOBD " > /dev/null 2>&1
-if [ x$? = x0 ]; then
- echo "Stuff still mounted on $MNTOBD; clean up first."
- exit
-fi
-
-mount | grep "$MNTSNAP " > /dev/null 2>&1
-if [ x$? = x0 ]; then
- echo "Stuff still mounted on $MNTSNAP; clean up first."
- exit
-fi
-
-sync
-plog log "STARTING snaprestore"
-
-
-$OBDDIR/utils/obdcontrol -f << EOF
-device /dev/obd1
-cleanup
-detach
-device /dev/obd2
-connect
-snaprestore 2 $SNAPTABLE 0
-quit
-EOF
-
-plog log "COMPLETE snaprestore"
-
-plog mount -t obdfs -odevice=/dev/obd2 none $MNTOBD
+++ /dev/null
-#! /bin/bash
-# Utility script for cleaning up a simple OBDFS mounted filesystem
-#
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-OBDDIR="`dirname $0`/.."
-. $OBDDIR/demos/config.sh
-
-umount $MNTOBD
-mount | grep "$MNTOBD " > /dev/null 2>&1
-if [ x$? = x0 ]; then
- echo "Stuff still mounted on $MNTOBD; clean up first."
- exit
-fi
-
-rmmod obdfs
-
-$OBDDIR/utils/obdcontrol -f << EOF
-device /dev/obd2
-cleanup
-detach
-device /dev/obd0
-cleanup
-detach
-quit
-EOF
-
-rmmod obdsnap
-rmmod obdext2
-rmmod obdclass
-
-rm $SNAPTABLE
-$OBDDIR/demos/baseclean.sh
+++ /dev/null
-#! /bin/bash
-# Utility script to create an OBD snapshot. If an existing filesystem is
-# not already mounted on /mnt/obd, we call the basic OBD setup script to
-# create and mount a filesystem for us.
-#
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-OBDDIR="`dirname $0`/.."
-. $OBDDIR/demos/config.sh
-
-
-# prepare the snapshot drive with a file to be COW'd
-if [ ! -d /mnt/obd/lost+found ]; then
- $OBDDIR/demos/obdfssetup.sh
- if [ x$? != x0 ]; then
- echo "Error running obdfssetup.sh"
- exit 4
- fi
-fi
-
-if [ ! -f $MNTOBD/hello ]; then
- $OBDDIR/demos/obdtest.sh
- if [ x$? != x0 ]; then
- echo "Error in obdfssetup.sh"
- exit 4
- fi
-fi
-
-plog umount $MNTOBD
-
-#plog insmod $OBDDIR/snap/obdsnap.o
-
-rm -f $SNAPTABLE
-
-plog log "NEW SNAP SETUP"
-# Create two snapshots using the OBD snapshot driver. One will be the
-# "current" snapshot (in obd device 1), where changes will take place.
-# The current snapshot is required in order to use the filesystem. The
-# second will be a snapshot of the filesystem taken "now" (in obd device 2)
-# that will remain static (historical read-only) filesystem as changes
-# are made to the current snapshot.
-$OBDDIR/utils/obdcontrol -f << EOF
-snaptable
-$SNAPTABLE
-a
-1
-current
-a
-2
-now
-q
-y
-snapset 0 $SNAPTABLE
-device /dev/obd1
-attach obdsnap 0 1 0
-setup
-device /dev/obd2
-attach obdsnap 0 2 0
-setup
-quit
-EOF
-
-# Mount the two filesystems. The filesystem under $MNTOBD will be the
-# one where changes are made, while $MNTSNAP will contain the original
-# files at the point when the snapshot was taken.
-
-[ ! -d "$MNTOBD" ] && mkdir $MNTOBD
-[ ! -d "$MNTSNAP" ] && mkdir $MNTSNAP
-plog mount -t obdfs -odevice=/dev/obd1 none $MNTOBD
-plog mount -t obdfs -oro,device=/dev/obd2 none $MNTSNAP
+++ /dev/null
-#!/bin/sh
-# Utility script to perform minor modifications to the read-write mounted
-# snapshot in order to demonstrate the changes w.r.t. the read-only snapshot
-#
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-OBDDIR="`dirname $0`/.."
-. $OBDDIR/demos/config.sh
-
-plog chmod 777 $MNTOBD # change attributes on an existing file
-plog rm $MNTOBD/a # delete an existing file
-echo "echo today >> $MNTOBD/hello" # modify an existing file
-echo today >> $MNTOBD/hello
-plog cp /etc/group $MNTOBD # create a new file
-plog ln -s goodbye $MNTOBD/newlink # create a new symlink
+++ /dev/null
-.Xrefs
-config.log
-config.status
-configure
-Makefile
-Makefile.in
-.deps
-TAGS
+++ /dev/null
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-DOCS = OBD-HOWTO.sgml OLVM.txt figs notes.txt obdspec.sgml obdtrace_demo.txt
-doc_DATA = $(DOCS) OBD-HOWTO.html OBD-HOWTO.txt
-CLEANFILES = OBD-HOWTO.html OBD-HOWTO.txt
-EXTRA_DIST = $(DOCS)
-
-.sgml.html:
- sgml2html -split 0 $<
-
-.sgml.txt:
- sgml2txt $<
-
-SUFFIXES = .sgml .html .txt
-
-dist-hook:
- rm -rf $(distdir)/figs/CVS
+++ /dev/null
-Lustre versioning
-=================
-
-0.0.1 2/19/2002 <braam@clusterfs.com>
-
-This document describes versioning of source and binaries for Lustre.
-
-CVS
-===
-
-Versions will have 4 digits:
- major.minor.patch.test
-
-Such versions will be tagged in CVS as:
- v1_2_11_7
-and referred to as:
- 1.2.11.7
-encoded as:
- 0x01021107
-
-Usage:
-------
-
-New numbers are used as follows:
-
-1. major:
- - increased when major new functionality becomes available
-2. minor:
- - even: for each new release with new functionality
- - odd : when a new development cycle starts after a release
-3. patch:
- - when a development snapshot or release update becomes available
- - all these are announced on lustre-devel@lists.sf.net
-4. test:
- - when developers feel it is time to exchange a named version
-
-What will run, what won't:
-
-1. If the test level is non-zero no guarantees of any kind are made.
-2. For three digit releases/tags the code should perform
- according to the announcement.
-
+++ /dev/null
-.Xrefs
-config.log
-config.status
-configure
-Makefile
-Makefile.in
-.deps
-TAGS
+++ /dev/null
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-all .DEFAULT:
- $(MAKE) -C ../.. $@
+++ /dev/null
-/* object based disk file system
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * Copyright (C), 1999, Stelias Computing Inc
- *
- *
- */
-
-
-#ifndef _INOFS_H
-#define INOFS_H
-#include <linux/obd_class.h>
-
-#include <linux/obdo.h>
-
-/* super.c */
-void inofs_read_inode(struct inode *inode);
-
-
-/* file.c */
-ssize_t inofs_file_write(struct file *file, const char *buf, size_t count, loff_t *ppos);
-
-
-/* rw.c */
-struct page *inofs_getpage(struct inode *inode, unsigned long offset, int create, int locked);
-int inofs_writepage(struct file *file, struct page *page);
-int inofs_write_one_page(struct file *file, struct page *page, unsigned long offset, unsigned long bytes, const char * buf);
-
-/* namei.c */
-struct dentry *inofs_lookup(struct inode * dir, struct dentry *dentry);
-int inofs_create (struct inode * dir, struct dentry * dentry, int mode);
-int inofs_mkdir(struct inode *dir, struct dentry *dentry, int mode);
-int inofs_rmdir(struct inode *dir, struct dentry *dentry);
-int inofs_unlink(struct inode *dir, struct dentry *dentry);
-int inofs_mknod(struct inode *dir, struct dentry *dentry, int mode, int rdev);
-int inofs_symlink(struct inode *dir, struct dentry *dentry, const char *symname);
-int inofs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry);
-int inofs_rename(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry);
-
-/* dir.c */
-int inofs_readdir(struct file * filp, void * dirent, filldir_t filldir);
-
-struct inofs_sb_info {
- struct list_head osi_list; /* list of supers */
- struct obd_conn osi_conn;
- struct super_block *osi_super;
- struct obd_device *osi_obd;
- struct obd_ops *osi_ops;
- struct list_head osi_inodes; /* list of dirty inodes */
- unsigned long osi_cache_count;
- struct semaphore osi_list_mutex;
-};
-
-void inofs_sysctl_init(void);
-void inofs_sysctl_clean(void);
-
-struct inofs_inode_info;
-
-extern struct file_operations inofs_file_ops;
-extern struct inode_operations inofs_inode_ops;
-
-static inline struct obd_ops *iops(struct inode *i)
-{
- struct inofs_sb_info *sbi = (struct inofs_sb_info *) i->i_sb->u.generic_sbp;
- return sbi->osi_ops;
-}
-
-#define NOLOCK 0
-#define LOCKED 1
-
-
-#define INOFS_SUPER_MAGIC 0x4711
-
-#endif
-
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
- *
- * This file is part of Lustre, http://www.lustre.org.
- *
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * (Un)packing of OST requests
- */
-
-#ifndef __LUSTRE_IDL_H__
-#define __LUSTRE_IDL_H__
-#ifdef __KERNEL__
-#include <linux/ioctl.h>
-#include <asm/types.h>
-
-#include <linux/types.h>
-#else
-#define __KERNEL__
-#include <linux/list.h>
-#undef __KERNEL__
-#include <stdint.h>
-#endif
-/*
- * this file contains all data structures used in Lustre interfaces:
- * - obdo and obd_request records
- * - mds_request records
- * - ioctl's
- */
-
-
-/*
- * OST requests: OBDO & OBD request records
- */
-
-/* opcodes */
-#define OST_GETATTR 1
-#define OST_SETATTR 2
-#define OST_BRW 3
-#define OST_CREATE 4
-#define OST_DESTROY 5
-#define OST_GET_INFO 6
-#define OST_CONNECT 7
-#define OST_DISCONNECT 8
-#define OST_PUNCH 9
-
-/* packet types */
-#define OST_TYPE_REQ 1
-#define OST_TYPE_REP 2
-#define OST_TYPE_ERR 3
-
-struct ptlreq_hdr {
- __u32 opc;
- __u64 seqno;
- __u32 status;
- __u32 type;
-};
-
-struct ptlrep_hdr {
- __u32 opc;
- __u64 seqno;
- __u32 status;
- __u32 type;
-};
-
-typedef uint64_t obd_id;
-typedef uint64_t obd_gr;
-typedef uint64_t obd_time;
-typedef uint64_t obd_size;
-typedef uint64_t obd_off;
-typedef uint64_t obd_blocks;
-typedef uint32_t obd_blksize;
-typedef uint32_t obd_mode;
-typedef uint32_t obd_uid;
-typedef uint32_t obd_gid;
-typedef uint32_t obd_rdev;
-typedef uint32_t obd_flag;
-typedef uint32_t obd_count;
-
-#define OBD_FL_INLINEDATA (0x00000001UL)
-#define OBD_FL_OBDMDEXISTS (0x00000002UL)
-
-#define OBD_INLINESZ 60
-#define OBD_OBDMDSZ 60
-/* Note: 64-bit types are 64-bit aligned in structure */
-struct obdo {
- obd_id o_id;
- obd_gr o_gr;
- obd_time o_atime;
- obd_time o_mtime;
- obd_time o_ctime;
- obd_size o_size;
- obd_blocks o_blocks;
- obd_blksize o_blksize;
- obd_mode o_mode;
- obd_uid o_uid;
- obd_gid o_gid;
- obd_flag o_flags;
- obd_flag o_obdflags;
- obd_count o_nlink;
- obd_count o_generation;
- obd_flag o_valid; /* hot fields in this obdo */
- char o_inline[OBD_INLINESZ];
- char o_obdmd[OBD_OBDMDSZ];
- struct list_head o_list;
- struct obd_ops *o_op;
-};
-
-#define OBD_MD_FLALL (~0UL)
-#define OBD_MD_FLID (0x00000001UL)
-#define OBD_MD_FLATIME (0x00000002UL)
-#define OBD_MD_FLMTIME (0x00000004UL)
-#define OBD_MD_FLCTIME (0x00000008UL)
-#define OBD_MD_FLSIZE (0x00000010UL)
-#define OBD_MD_FLBLOCKS (0x00000020UL)
-#define OBD_MD_FLBLKSZ (0x00000040UL)
-#define OBD_MD_FLMODE (0x00000080UL)
-#define OBD_MD_FLTYPE (0x00000100UL)
-#define OBD_MD_FLUID (0x00000200UL)
-#define OBD_MD_FLGID (0x00000400UL)
-#define OBD_MD_FLFLAGS (0x00000800UL)
-#define OBD_MD_FLOBDFLG (0x00001000UL)
-#define OBD_MD_FLNLINK (0x00002000UL)
-#define OBD_MD_FLGENER (0x00004000UL)
-#define OBD_MD_FLINLINE (0x00008000UL)
-#define OBD_MD_FLOBDMD (0x00010000UL)
-#define OBD_MD_FLOBJID (0x00020000UL)
-#define OBD_MD_FLNOTOBD (~(OBD_MD_FLOBDMD | OBD_MD_FLOBDFLG | OBD_MD_FLBLOCKS))
-
-/* request structure for OST's */
-
-#define OST_REQ_HAS_OA1 0x1
-
-struct ost_req {
- __u32 connid;
- __u32 cmd;
- struct obdo oa;
- __u32 buflen1;
- __u32 buflen2;
-};
-
-struct ost_rep {
- __u32 result;
- __u32 connid;
- struct obdo oa;
- __u32 buflen1;
- __u32 buflen2;
-};
-
-struct obd_ioobj {
- obd_id ioo_id;
- obd_gr ioo_gr;
- __u32 ioo_type;
- __u32 ioo_bufcnt;
-};
-
-
-/*
- * MDS REQ RECORDS
- */
-
-
-#define MDS_TYPE_REQ 1
-#define MDS_TYPE_REP 2
-#define MDS_TYPE_ERR 3
-
-#define MDS_GETATTR 1
-#define MDS_OPEN 2
-#define MDS_CLOSE 3
-#define MDS_REINT 4
-#define MDS_READPAGE 5
-
-#define REINT_SETATTR 0
-#define REINT_CREATE 1
-#define REINT_LINK 2
-#define REINT_UNLINK 3
-#define REINT_RENAME 4
-#define REINT_MAX 4
-
-struct ll_fid {
- __u64 id;
- __u32 generation;
- __u32 f_type;
-};
-
-struct niobuf {
- __u64 addr;
- __u64 offset;
- __u32 len;
- __u32 flags;
- void *page;
-};
-
-struct mds_req {
- struct ll_fid fid1;
- struct ll_fid fid2;
- __u32 namelen;
- __u32 tgtlen;
- __u32 opcode;
- __u32 valid;
- __u32 mode;
- __u32 uid;
- __u32 gid;
- __u64 size;
- __u32 mtime;
- __u32 ctime;
- __u32 atime;
- __u32 flags;
- __u32 major;
- __u32 minor;
- __u32 ino;
- __u32 nlink;
- __u32 generation;
- __u64 objid;
-};
-
-struct mds_rep {
- struct ll_fid fid1;
- struct ll_fid fid2;
- __u32 namelen;
- __u32 tgtlen;
- __u32 valid;
- __u32 mode;
- __u32 uid;
- __u32 gid;
- __u64 size;
- __u32 mtime;
- __u32 ctime;
- __u32 atime;
- __u32 flags;
- __u32 major;
- __u32 minor;
- __u32 ino;
- __u32 nlink;
- __u32 generation;
- __u64 objid;
-};
-
-/* MDS update records */
-struct mds_update_record_hdr {
- __u32 ur_reclen;
- __u32 ur_opcode;
-};
-
-struct mds_rec_setattr {
- __u32 sa_reclen;
- __u32 sa_opcode;
- struct ll_fid sa_fid;
- __u32 sa_valid;
- __u32 sa_mode;
- __u32 sa_uid;
- __u32 sa_gid;
- __u64 sa_size;
- __u64 sa_atime;
- __u64 sa_mtime;
- __u64 sa_ctime;
- __u32 sa_attr_flags;
-};
-
-struct mds_rec_create {
- __u32 cr_reclen;
- __u32 cr_opcode;
- struct ll_fid cr_fid;
- __u32 cr_uid;
- __u32 cr_gid;
- __u64 cr_time;
- __u32 cr_mode;
- /* overloaded: id for create, tgtlen for symlink, rdev for mknod */
- __u64 cr_id;
- __u32 cr_namelen;
- __u32 cr_tgtlen;
- /* name here */
- /* symlink target here */
-};
-
-struct mds_rec_link {
- __u32 lk_reclen;
- __u32 lk_opcode;
- struct ll_fid lk_fid1;
- struct ll_fid lk_fid2;
- __u32 lk_namelen;
-};
-
-struct mds_rec_unlink {
- __u32 ul_reclen;
- __u32 ul_opcode;
- struct ll_fid ul_fid1;
- __u32 ul_namelen;
-};
-
-struct mds_rec_rename {
- __u32 rn_reclen;
- __u32 rn_opcode;
- struct ll_fid rn_fid1;
- struct ll_fid rn_fid2;
- __u32 rn_namelen;
- __u32 rn_tgtlen;
-};
-
-#ifdef __KERNEL__
-
-static inline void ll_ino2fid(struct ll_fid *fid, ino_t ino, __u32 generation, int type)
-{
- fid->id = HTON__u64((__u64)ino);
- fid->generation = HTON__u32(generation);
- fid->f_type = HTON__u32(type);
-}
-
-static inline void ll_inode2fid(struct ll_fid *fid, struct inode *inode)
-{
- fid->id = HTON__u64((__u64)inode->i_ino);
- fid->generation = HTON__u32(inode->i_generation);
- fid->f_type = HTON__u32(inode->i_mode & S_IFMT);
-}
-
-#endif
-
-/*
- * OBD IOCTLS
- */
-
-
-#define OBD_IOCTL_VERSION 0x00010001
-
-struct obd_ioctl_data {
- uint32_t ioc_len;
- uint32_t ioc_version;
- uint32_t ioc_conn1;
- uint32_t ioc_conn2;
- struct obdo ioc_obdo1;
- struct obdo ioc_obdo2;
- obd_size ioc_count;
- obd_off ioc_offset;
- uint32_t ioc_dev;
-
- /* buffers the kernel will treat as user pointers */
- uint32_t ioc_plen1;
- char *ioc_pbuf1;
- uint32_t ioc_plen2;
- char *ioc_pbuf2;
-
- /* two inline buffers */
- uint32_t ioc_inllen1;
- char *ioc_inlbuf1;
- uint32_t ioc_inllen2;
- char *ioc_inlbuf2;
-
- char ioc_bulk[0];
-};
-
-struct obd_ioctl_hdr {
- uint32_t ioc_len;
- uint32_t ioc_version;
-};
-
-static inline int obd_ioctl_packlen(struct obd_ioctl_data *data)
-{
- int len = sizeof(struct obd_ioctl_data);
- len += size_round(data->ioc_inllen1);
- len += size_round(data->ioc_inllen2);
- return len;
-}
-
-static inline int obd_ioctl_is_invalid(struct obd_ioctl_data *data)
-{
- if (data->ioc_len > (1<<30)) {
- printk("OBD ioctl: ioc_len larger than 1<<30\n");
- return 1;
- }
- if (data->ioc_inllen1 > (1<<30)) {
- printk("OBD ioctl: ioc_inllen1 larger than 1<<30\n");
- return 1;
- }
- if (data->ioc_inllen2 > (1<<30)) {
- printk("OBD ioctl: ioc_inllen2 larger than 1<<30\n");
- return 1;
- }
- if (data->ioc_inlbuf1 && !data->ioc_inllen1) {
- printk("OBD ioctl: inlbuf1 pointer but 0 length\n");
- return 1;
- }
- if (data->ioc_inlbuf2 && !data->ioc_inllen2) {
- printk("OBD ioctl: inlbuf2 pointer but 0 length\n");
- return 1;
- }
- if (data->ioc_pbuf1 && !data->ioc_plen1) {
- printk("OBD ioctl: pbuf1 pointer but 0 length\n");
- return 1;
- }
- if (data->ioc_pbuf2 && !data->ioc_plen2) {
- printk("OBD ioctl: pbuf2 pointer but 0 length\n");
- return 1;
- }
- if (obd_ioctl_packlen(data) != data->ioc_len ) {
- printk("OBD ioctl: packlen exceeds ioc_len\n");
- return 1;
- }
- if (data->ioc_inllen1 &&
- data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') {
- printk("OBD ioctl: inlbuf1 not 0 terminated\n");
- return 1;
- }
- if (data->ioc_inllen2 &&
- data->ioc_bulk[size_round(data->ioc_inllen1) + data->ioc_inllen2 - 1] != '\0') {
- printk("OBD ioctl: inlbuf2 not 0 terminated\n");
- return 1;
- }
- return 0;
-}
-
-#ifndef __KERNEL__
-static inline int obd_ioctl_pack(struct obd_ioctl_data *data, char **pbuf, int max)
-{
- char *ptr;
- struct obd_ioctl_data *overlay;
- data->ioc_len = obd_ioctl_packlen(data);
- data->ioc_version = OBD_IOCTL_VERSION;
-
- if (*pbuf && obd_ioctl_packlen(data) > max)
- return 1;
- if (*pbuf == NULL) {
- *pbuf = malloc(data->ioc_len);
- }
- if (!*pbuf)
- return 1;
- overlay = (struct obd_ioctl_data *)*pbuf;
- memcpy(*pbuf, data, sizeof(*data));
-
- ptr = overlay->ioc_bulk;
- if (data->ioc_inlbuf1)
- LOGL(data->ioc_inlbuf1, data->ioc_inllen1, ptr);
- if (data->ioc_inlbuf2)
- LOGL(data->ioc_inlbuf2, data->ioc_inllen2, ptr);
- if (obd_ioctl_is_invalid(overlay))
- return 1;
-
- return 0;
-}
-#else
-
-
-/* buffer MUST be at least the size of obd_ioctl_hdr */
-static inline int obd_ioctl_getdata(char *buf, char *end, void *arg)
-{
- struct obd_ioctl_hdr *hdr;
- struct obd_ioctl_data *data;
- int err;
- ENTRY;
-
- hdr = (struct obd_ioctl_hdr *)buf;
- data = (struct obd_ioctl_data *)buf;
-
- err = copy_from_user(buf, (void *)arg, sizeof(*hdr));
- if ( err ) {
- EXIT;
- return err;
- }
-
- if (hdr->ioc_version != OBD_IOCTL_VERSION) {
- printk("OBD: version mismatch kernel vs application\n");
- return -EINVAL;
- }
-
- if (hdr->ioc_len + buf >= end) {
- printk("OBD: user buffer exceeds kernel buffer\n");
- return -EINVAL;
- }
-
-
- if (hdr->ioc_len < sizeof(struct obd_ioctl_data)) {
- printk("OBD: user buffer too small for ioctl\n");
- return -EINVAL;
- }
-
- err = copy_from_user(buf, (void *)arg, hdr->ioc_len);
- if ( err ) {
- EXIT;
- return err;
- }
-
- if (obd_ioctl_is_invalid(data)) {
- printk("OBD: ioctl not correctly formatted\n");
- return -EINVAL;
- }
-
- if (data->ioc_inllen1) {
- data->ioc_inlbuf1 = &data->ioc_bulk[0];
- }
-
- if (data->ioc_inllen2) {
- data->ioc_inlbuf2 = &data->ioc_bulk[0] + size_round(data->ioc_inllen1);
- }
-
- EXIT;
- return 0;
-}
-#endif
-
-
-#define OBD_IOC_CREATE _IOR ('f', 3, long)
-#define OBD_IOC_SETUP _IOW ('f', 4, long)
-#define OBD_IOC_CLEANUP _IO ('f', 5 )
-#define OBD_IOC_DESTROY _IOW ('f', 6, long)
-#define OBD_IOC_PREALLOCATE _IOWR('f', 7, long)
-#define OBD_IOC_DEC_USE_COUNT _IO ('f', 8 )
-#define OBD_IOC_SETATTR _IOW ('f', 9, long)
-#define OBD_IOC_GETATTR _IOR ('f', 10, long)
-#define OBD_IOC_READ _IOWR('f', 11, long)
-#define OBD_IOC_WRITE _IOWR('f', 12, long)
-#define OBD_IOC_CONNECT _IOR ('f', 13, long)
-#define OBD_IOC_DISCONNECT _IOW ('f', 14, long)
-#define OBD_IOC_STATFS _IOWR('f', 15, long)
-#define OBD_IOC_SYNC _IOR ('f', 16, long)
-#define OBD_IOC_READ2 _IOWR('f', 17, long)
-#define OBD_IOC_FORMAT _IOWR('f', 18, long)
-#define OBD_IOC_PARTITION _IOWR('f', 19, long)
-#define OBD_IOC_ATTACH _IOWR('f', 20, long)
-#define OBD_IOC_DETACH _IOWR('f', 21, long)
-#define OBD_IOC_COPY _IOWR('f', 22, long)
-#define OBD_IOC_MIGR _IOWR('f', 23, long)
-#define OBD_IOC_PUNCH _IOWR('f', 24, long)
-#define OBD_IOC_DEVICE _IOWR('f', 25, long)
-#define OBD_IOC_MODULE_DEBUG _IOWR('f', 26, long)
-
-#define OBD_IOC_DEC_FS_USE_COUNT _IO ('f', 32 )
-
-
-/* GENERAL THINGS */
-union ptl_rep {
- struct mds_rep *mds;
- struct ost_rep *ost;
-};
-
-union ptl_req {
- struct mds_req *mds;
- struct ost_req *ost;
-};
-
-
-#endif
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
- *
- * This file is part of Lustre, http://www.lustre.org.
- *
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Basic Lustre library routines.
- *
- */
-
-#ifndef _LUSTRE_LIB_H
-#define _LUSTRE_LIB_H
-
-#include <asm/types.h>
-
-#ifndef __KERNEL__
-# include <string.h>
-#endif
-
-#ifdef __KERNEL__
-/* page.c */
-inline void lustre_put_page(struct page *page);
-struct page * lustre_get_page(struct inode *dir, unsigned long n);
-int lustre_prepare_page(unsigned from, unsigned to, struct page *page);
-int lustre_commit_page(struct page *page, unsigned from, unsigned to);
-#endif
-
-#include <linux/portals_lib.h>
-
-#endif /* _LUSTRE_LIB_H */
+++ /dev/null
-/* object based disk file system
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * Copyright (C), 1999, Stelias Computing Inc
- *
- *
- */
-
-
-#ifndef _LL_H
-#define _LL_H
-#include <linux/obd_class.h>
-#include <linux/obdo.h>
-#include <linux/list.h>
-#include <linux/lustre_net.h>
-
-#define LL_SUPER_MAGIC 0x0BD00BD0;
-
-#define LL_INLINESZ 60
-struct ll_inode_info {
- int lli_flags;
- __u64 lli_objid;
- char lli_inline[LL_INLINESZ];
-};
-
-struct ll_sb_info {
- struct list_head ll_list; /* list of supers */
- struct obd_conn ll_conn;
- struct super_block *ll_super;
- ino_t ll_rootino; /* number of root inode */
- int ll_minor; /* minor of /dev/obdX */
- struct list_head ll_inodes; /* list of dirty inodes */
- unsigned long ll_cache_count;
- struct semaphore ll_list_mutex;
- struct ptlrpc_client ll_mds_client;
- struct ptlrpc_client ll_ost_client;
-};
-
-
-static inline struct ll_sb_info *ll_i2sbi(struct inode *inode)
-{
- return (struct ll_sb_info *) (inode->i_sb->u.generic_sbp);
-}
-
-static inline struct ll_inode_info *ll_i2info(struct inode *inode)
-{
- return (struct ll_inode_info *)&(inode->u.generic_ip);
-}
-
-static inline int ll_has_inline(struct inode *inode)
-{
- return (ll_i2info(inode)->lli_flags & OBD_FL_INLINEDATA);
-}
-
-
-static inline struct obd_conn *ll_i2obdconn(struct inode *inode)
-{
- return &(ll_i2sbi(inode))->ll_conn;
-}
-
-
-
-
-
-/* super.c */
-struct ll_pgrq {
- struct list_head rq_plist; /* linked list of req's */
- unsigned long rq_jiffies;
- struct page *rq_page; /* page to be written */
-};
-
-extern struct list_head ll_super_list; /* list of all LL superblocks */
-
-
-
-/* dir.c */
-#define EXT2_DIR_PAD 4
-#define EXT2_DIR_ROUND (EXT2_DIR_PAD - 1)
-#define EXT2_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT2_DIR_ROUND) & \
- ~EXT2_DIR_ROUND)
-#define EXT2_NAME_LEN 255
-
-int ll_check_dir_entry (const char * function, struct inode * dir,
- struct ext2_dir_entry_2 * de, struct page * page,
- unsigned long offset);
-extern struct file_operations ll_dir_operations;
-extern struct inode_operations ll_dir_inode_operations;
-
-/* file.c */
-extern struct file_operations ll_file_operations;
-extern struct inode_operations ll_file_inode_operations;
-
-/* flush.c */
-void ll_dequeue_pages(struct inode *inode);
-int ll_flushd_init(void);
-int ll_flushd_cleanup(void);
-int ll_flush_reqs(struct list_head *inode_list, unsigned long check_time);
-int ll_flush_dirty_pages(unsigned long check_time);
-
-/* namei.c */
-/*
- * Structure of the super block
- */
-
-
-#define EXT2_SB(sb) (&((sb)->u.ext2_sb))
-/*
- * Maximal count of links to a file
- */
-#define EXT2_LINK_MAX 32000
-/*
- * Ext2 directory file types. Only the low 3 bits are used. The
- * other bits are reserved for now.
- */
-#define EXT2_FT_UNKNOWN 0
-#define EXT2_FT_REG_FILE 1
-#define EXT2_FT_DIR 2
-#define EXT2_FT_CHRDEV 3
-#define EXT2_FT_BLKDEV 4
-#define EXT2_FT_FIFO 5
-#define EXT2_FT_SOCK 6
-#define EXT2_FT_SYMLINK 7
-
-#define EXT2_FT_MAX 8
-
-#define EXT2_BTREE_FL 0x00001000 /* btree format dir */
-#define EXT2_RESERVED_FL 0x80000000 /* reserved for ext2 lib */
-#define EXT2_FEATURE_INCOMPAT_FILETYPE 0x0002
-#define EXT2_HAS_COMPAT_FEATURE(sb,mask) \
- ( EXT2_SB(sb)->s_es->s_feature_compat & cpu_to_le32(mask) )
-#define EXT2_HAS_INCOMPAT_FEATURE(sb,mask) \
- ( EXT2_SB(sb)->s_es->s_feature_incompat & cpu_to_le32(mask) )
-
-/* rw.c */
-int ll_do_writepage(struct page *, int sync);
-int ll_init_pgrqcache(void);
-void ll_cleanup_pgrqcache(void);
-inline void ll_pgrq_del(struct ll_pgrq *pgrq);
-int ll_readpage(struct file *file, struct page *page);
-int ll_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to);
-int ll_commit_write(struct file *file, struct page *page, unsigned from, unsigned to);
-int ll_writepage(struct page *page);
-struct page *ll_getpage(struct inode *inode, unsigned long offset,
- int create, int locked);
-int ll_write_one_page(struct file *file, struct page *page,
- unsigned long offset, unsigned long bytes,
- const char * buf);
-int ll_do_vec_wr(struct inode **inodes, obd_count num_io, obd_count num_oa,
- struct obdo **obdos, obd_count *oa_bufs,
- struct page **pages, char **bufs, obd_size *counts,
- obd_off *offsets, obd_flag *flags);
-void ll_truncate(struct inode *inode);
-
-/* super.c */
-extern long ll_cache_count;
-extern long ll_mutex_start;
-
-/* symlink.c */
-extern struct inode_operations ll_fast_symlink_inode_operations;
-extern struct inode_operations ll_symlink_inode_operations;
-
-/* sysctl.c */
-void ll_sysctl_init(void);
-void ll_sysctl_clean(void);
-
-
-
-static inline struct list_head *ll_slist(struct inode *inode)
-{
- struct ll_sb_info *sbi = ll_i2sbi(inode);
-
- return &sbi->ll_inodes;
-}
-
-#endif
-
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
- *
- * This file is part of Lustre, http://www.lustre.org.
- *
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * MDS data structures.
- * See also lustre_idl.h for wire formats of requests.
- *
- */
-
-#ifndef _LUSTRE_MDS_H
-#define _LUSTRE_MDS_H
-
-
-#include <linux/obd_support.h>
-#include <linux/lustre_idl.h>
-#include <linux/lustre_net.h>
-
-static inline void l_dput(struct dentry *de)
-{
- if (!de || IS_ERR(de))
- return;
- dput(de);
-}
-
-struct mds_run_ctxt {
- struct vfsmount *pwdmnt;
- struct dentry *pwd;
- mm_segment_t fs;
-};
-
-#define MDS_STOPPING 1
-#define MDS_RUNNING 2
-#define MDS_STOPPED 4
-#define LUSTRE_MDS_NAME "mds"
-
-struct mds_obd {
- char *mds_fstype;
- struct task_struct *mds_thread;
- __u32 mds_remote_nid;
- wait_queue_head_t mds_waitq;
- wait_queue_head_t mds_done_waitq;
- struct timer_list *mds_timer;
- int mds_interval;
- int mds_flags;
- struct list_head mds_reqs;
- struct super_block * mds_sb;
- struct vfsmount *mds_vfsmnt;
- struct mds_run_ctxt mds_ctxt;
- spinlock_t mds_lock;
- __u64 mds_lastino;
- struct file_operations *mds_fop;
- struct inode_operations *mds_iop;
- struct address_space_operations *mds_aops;
-
- struct ptlrpc_service *mds_service;
-};
-
-
-struct mds_update_record {
- __u32 ur_reclen;
- __u32 ur_opcode;
- struct ll_fid *ur_fid1;
- struct ll_fid *ur_fid2;
- int ur_namelen;
- char *ur_name;
- int ur_tgtlen;
- char *ur_tgt;
- struct iattr ur_iattr;
- __u64 ur_id;
- __u32 ur_mode;
- __u32 ur_uid;
- __u32 ur_gid;
- __u64 ur_time;
-};
-
-/* mds/mds_pack.c */
-void *mds_req_tgt(struct mds_req *req);
-int mds_pack_req(char *name, int namelen, char *tgt, int tgtlen, struct ptlreq_hdr **hdr, union ptl_req *req, int *len, char **buf);
-int mds_unpack_req(char *buf, int len, struct ptlreq_hdr **hdr, union ptl_req *);
-int mds_pack_rep(char *name, int namelen, char *tgt, int tgtlen, struct ptlrep_hdr **hdr, union ptl_rep *rep, int *len, char **buf);
-int mds_unpack_rep(char *buf, int len, struct ptlrep_hdr **hdr, union ptl_rep *rep);
-
-/* mds/mds_reint.c */
-int mds_reint_rec(struct mds_update_record *r, struct ptlrpc_request *req);
-
-/* lib/mds_updates.c */
-int mds_update_unpack(char *buf, int len, struct mds_update_record *r);
-
-void mds_setattr_pack(struct mds_rec_setattr *rec, struct inode *inode, struct iattr *iattr);
-void mds_create_pack(struct mds_rec_create *rec, struct inode *inode, const char *name, int namelen, __u32 mode, __u64 id, __u32 uid, __u32 gid, __u64 time, const char *tgt, int tgtlen);
-void mds_unlink_pack(struct mds_rec_unlink *rec, struct inode *inode, const char *name, int namelen);
-void mds_link_pack(struct mds_rec_link *rec, struct inode *inode, struct inode *dir, const char *name, int namelen);
-void mds_rename_pack(struct mds_rec_rename *rec, struct inode *srcdir, struct inode *tgtdir, const char *name, int namelen, const char *tgt, int tgtlen);
-
-/* mds/handler.c */
-struct dentry *mds_fid2dentry(struct mds_obd *mds, struct ll_fid *fid, struct vfsmount **mnt);
-
-/* llight/request.c */
-int mdc_getattr(struct ptlrpc_client *peer, ino_t ino, int type, int valid,
- struct mds_rep **mds_reply, struct ptlrep_hdr **hdr);
-int mdc_setattr(struct ptlrpc_client *peer, struct inode *inode,
- struct iattr *iattr, struct mds_rep **mds_reply,
- struct ptlrep_hdr **hdr);
-int mdc_readpage(struct ptlrpc_client *peer, ino_t ino, int type, __u64 offset,
- char *addr, struct mds_rep **rep, struct ptlrep_hdr **hdr);
-int mdc_create(struct ptlrpc_client *peer,
- struct inode *dir, const char *name, int namelen,
- const char *tgt, int tgtlen,
- int mode, __u64 id, __u32 uid, __u32 gid, __u64 time,
- struct mds_rep **rep, struct ptlrep_hdr **hdr);
-int mdc_unlink(struct ptlrpc_client *peer,
- struct inode *dir, const char *name, int namelen,
- struct mds_rep **rep, struct ptlrep_hdr **hdr);
-int mdc_link(struct ptlrpc_client *peer, struct dentry *src,
- struct inode *dir, const char *name, int namelen,
- struct mds_rep **rep, struct ptlrep_hdr **hdr);
-int mdc_rename(struct ptlrpc_client *peer, struct inode *src,
- struct inode *tgt, const char *old, int oldlen,
- const char *new, int newlen,
- struct mds_rep **rep, struct ptlrep_hdr **hdr);
-int mdc_create_client(char *uuid, struct ptlrpc_client *cl);
-
-/* ioctls for trying requests */
-#define IOC_REQUEST_TYPE 'f'
-#define IOC_REQUEST_MIN_NR 30
-
-#define IOC_REQUEST_GETATTR _IOWR('f', 30, long)
-#define IOC_REQUEST_READPAGE _IOWR('f', 31, long)
-#define IOC_REQUEST_SETATTR _IOWR('f', 32, long)
-#define IOC_REQUEST_CREATE _IOWR('f', 33, long)
-#define IOC_REQUEST_MAX_NR 33
-
-#endif
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2002 Cluster File Systems, Inc.
- *
- * This file is part of Lustre, http://www.lustre.org.
- *
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#ifndef _LUSTRE_NET_H
-#define _LUSTRE_NET_H
-
-#include <linux/kp30.h>
-#include <portals/p30.h>
-#include <linux/lustre_idl.h>
-
-/* FOO_REQUEST_PORTAL receives requests for the FOO subsystem.
- * FOO_REPLY_PORTAL receives replies _from_ the FOO subsystem. */
-#define OSC_REQUEST_PORTAL 1
-#define OSC_REPLY_PORTAL 2
-#define MDS_REQUEST_PORTAL 3
-#define MDS_REPLY_PORTAL 4
-#define OST_REQUEST_PORTAL 5
-#define OST_REPLY_PORTAL 6
-#define MDC_BULK_PORTAL 7
-#define MDS_BULK_PORTAL 8
-#define OSC_BULK_PORTAL 9
-#define OST_BULK_PORTAL 10
-
-/* default rpc ring length */
-#define RPC_RING_LENGTH 2
-
-/* generic wrappable next */
-#define NEXT_INDEX(index, max) (((index+1) >= max) ? 0 : (index+1))
-
-
-struct ptlrpc_service {
- char *srv_buf[RPC_RING_LENGTH];
- __u32 srv_buf_size;
- __u32 srv_me_active;
- __u32 srv_me_tail;
- __u32 srv_md_active;
- __u32 srv_ring_length;
- __u32 srv_portal;
- __u32 srv_ref_count[RPC_RING_LENGTH];
-
- struct lustre_peer srv_self;
-
- /* FIXME: perhaps a list of EQs, if multiple NIs are used? */
- ptl_handle_eq_t srv_eq_h;
-
- ptl_handle_me_t srv_me_h[RPC_RING_LENGTH];
- ptl_process_id_t srv_id;
- ptl_md_t srv_md[RPC_RING_LENGTH];
- ptl_handle_md_t srv_md_h[RPC_RING_LENGTH];
- wait_queue_head_t *srv_wait_queue;
- int (*srv_req_unpack)(char *buf, int len, struct ptlreq_hdr **,
- union ptl_req *);
- int (*srv_rep_pack)(char *buf1, int len1, char *buf2, int len2,
- struct ptlrep_hdr **, union ptl_rep*,
- int *replen, char **repbuf);
-};
-
-struct ptlrpc_request {
- int rq_type; /* one of PTLRPC_REQUEST, PTLRPC_REPLY, PTLRPC_BULK */
- struct list_head rq_list;
- struct mds_obd *rq_obd;
- struct ost_obd *rq_ost;
- int rq_status;
- __u32 rq_xid;
-
- char *rq_reqbuf;
- int rq_reqlen;
- struct ptlreq_hdr *rq_reqhdr;
- union ptl_req rq_req;
-
- char *rq_repbuf;
- int rq_replen;
- struct ptlrep_hdr *rq_rephdr;
- union ptl_rep rq_rep;
-
- char *rq_bulkbuf;
- int rq_bulklen;
- int (*rq_bulk_cb)(struct ptlrpc_request *, void *);
-
- void *rq_reply_handle;
- wait_queue_head_t rq_wait_for_rep;
- wait_queue_head_t rq_wait_for_bulk;
-
- ptl_md_t rq_reply_md;
- ptl_handle_md_t rq_reply_md_h;
- ptl_handle_me_t rq_reply_me_h;
-
- ptl_md_t rq_req_md;
- ptl_md_t rq_bulk_md;
- ptl_handle_md_t rq_bulk_md_h;
- ptl_handle_me_t rq_bulk_me_h;
- __u32 rq_reply_portal;
- __u32 rq_req_portal;
- __u32 rq_bulk_portal;
-
- struct lustre_peer rq_peer;
-};
-
-struct ptlrpc_client {
- struct lustre_peer cli_server;
- __u32 cli_request_portal;
- __u32 cli_reply_portal;
- __u32 cli_xid;
- int (*cli_rep_unpack)(char *buf, int len, struct ptlrep_hdr **,
- union ptl_rep *);
- int (*cli_req_pack)(char *buf1, int len1, char *buf2, int len2,
- struct ptlreq_hdr **, union ptl_req*,
- int *reqlen, char **reqbuf);
- int (*cli_enqueue)(struct ptlrpc_request *req);
-};
-
-/* rpc/rpc.c */
-#define PTLRPC_REQUEST 1
-#define PTLRPC_REPLY 2
-#define PTLRPC_BULK 3
-
-int ptl_send_buf(struct ptlrpc_request *request, struct lustre_peer *peer,
- int portal);
-int ptl_send_rpc(struct ptlrpc_request *request, struct lustre_peer *peer);
-int ptl_received_rpc(struct ptlrpc_service *service);
-int rpc_register_service(struct ptlrpc_service *service, char *uuid);
-int rpc_unregister_service(struct ptlrpc_service *service);
-int ptlrpc_queue_wait(struct ptlrpc_request *req,
- struct ptlrpc_client *cl);
-struct ptlrpc_request *ptlrpc_prep_req(struct ptlrpc_client *cl,
- int opcode, int namelen, char *name,
- int tgtlen, char *tgt);
-void ptlrpc_free_req(struct ptlrpc_request *request);
-
-
-/* FIXME */
-#if 1
-# define LUSTRE_NAL "ksocknal"
-#else
-# define LUSTRE_NAL "kqswnal"
-#endif
-
-#endif
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
- *
- * This file is part of Lustre, http://www.lustre.org.
- *
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Definitions related to request handling
- */
-
-#ifndef __LUSTRE_REQ_H__
-#define __LUSTRE_REQ_H__
-
-struct lustre_connection {
-
-
-};
-
-#endif
+++ /dev/null
-#ifndef __OBD_H
-#define __OBD_H
-/*
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- */
-
-struct obd_conn_info {
- unsigned int conn_id; /* handle */
-};
-
-struct obd_type {
- struct list_head typ_chain;
- struct obd_ops *typ_ops;
- char *typ_name;
- int typ_refcnt;
-};
-
-#define OBD_MAGIC 0xffff0000
-#define OBD_MAGIC_MASK 0xffff0000
-
-
-
-#endif
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
- *
- * This file is part of Lustre, http://www.lustre.org.
- *
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#ifndef __LINUX_CLASS_OBD_H
-#define __LINUX_CLASS_OBD_H
-
-#ifndef __KERNEL__
-#include <stdint.h>
-#define __KERNEL__
-#include <linux/list.h>
-#undef __KERNEL__
-#else
-#include <asm/segment.h>
-#include <asm/uaccess.h>
-#include <linux/types.h>
-#include <linux/fs.h>
-#include <linux/time.h>
-
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
-#include <linux/obd.h>
-#endif
-
-/*
- * ======== OBD Device Declarations ===========
- */
-#define MAX_OBD_DEVICES 8
-#define MAX_MULTI 16
-extern struct obd_device obd_dev[MAX_OBD_DEVICES];
-
-#define OBD_ATTACHED 0x1
-#define OBD_SET_UP 0x2
-
-struct obd_conn {
- struct obd_device *oc_dev;
- uint32_t oc_id;
-};
-
-typedef struct {
- uint32_t len;
- char * name;
- struct dentry *dentry; /* file system obd device names */
- __u8 _uuid[16]; /* uuid obd device names */
-} obd_devicename;
-
-#include <linux/obd_ext2.h>
-#include <linux/obd_filter.h>
-#include <linux/lustre_mds.h>
-#include <linux/obd_snap.h>
-#include <linux/obd_trace.h>
-/* #include <linux/obd_fc.h> */
-#include <linux/obd_raid1.h>
-#include <linux/obd_ost.h>
-#include <linux/obd_osc.h>
-
-#ifdef __KERNEL__
-/* corresponds to one of the obdx */
-struct obd_device {
- struct obd_type *obd_type;
- int obd_minor;
- int obd_flags;
- int obd_refcnt;
- obd_devicename obd_fsname;
- struct proc_dir_entry *obd_proc_entry;
- int obd_multi_count;
- struct obd_conn obd_multi_conn[MAX_MULTI];
- unsigned int obd_gen_last_id;
- unsigned long obd_gen_prealloc_quota;
- struct list_head obd_gen_clients;
- union {
- struct ext2_obd ext2;
- struct filter_obd filter;
- struct mds_obd mds;
- struct raid1_obd raid1;
- struct snap_obd snap;
- struct trace_obd trace;
- struct ost_obd ost;
- struct osc_obd osc;
- } u;
-};
-
-extern struct proc_dir_entry *proc_lustre_register_obd_device(struct obd_device *obd);
-extern void proc_lustre_release_obd_device(struct obd_device *obd);
-extern void proc_lustre_remove_obd_entry(const char* name, struct obd_device *obd);
-
-/*
- * ======== OBD Operations Declarations ===========
- */
-
-#define OBD_BRW_READ 1
-#define OBD_BRW_WRITE 2
-#define OBD_BRW_RWMASK OBD_BRW_READ | OBD_BRW_WRITE
-#define OBD_BRW_CREATE 4
-
-struct obd_ops {
- int (*o_iocontrol)(int cmd, struct obd_conn *, int len, void *karg,
- void *uarg);
- int (*o_get_info)(struct obd_conn *, obd_count keylen, void *key,
- obd_count *vallen, void **val);
- int (*o_set_info)(struct obd_conn *, obd_count keylen, void *key,
- obd_count vallen, void *val);
- int (*o_attach)(struct obd_device *dev, obd_count len, void *data);
- int (*o_detach)(struct obd_device *dev);
- int (*o_setup) (struct obd_device *dev, obd_count len, void *data);
- int (*o_cleanup)(struct obd_device *dev);
- int (*o_connect)(struct obd_conn *conn);
- int (*o_disconnect)(struct obd_conn *conn);
- int (*o_statfs)(struct obd_conn *conn, struct statfs *statfs);
- int (*o_preallocate)(struct obd_conn *, obd_count *req, obd_id *ids);
- int (*o_create)(struct obd_conn *conn, struct obdo *oa);
- int (*o_destroy)(struct obd_conn *conn, struct obdo *oa);
- int (*o_setattr)(struct obd_conn *conn, struct obdo *oa);
- int (*o_getattr)(struct obd_conn *conn, struct obdo *oa);
- int (*o_read)(struct obd_conn *conn, struct obdo *oa, char *buf,
- obd_size *count, obd_off offset);
- int (*o_write)(struct obd_conn *conn, struct obdo *oa, char *buf,
- obd_size *count, obd_off offset);
- int (*o_brw)(int rw, struct obd_conn *conn, obd_count num_oa,
- struct obdo **oa, obd_count *oa_bufs, struct page **buf,
- obd_size *count, obd_off *offset, obd_flag *flags);
- int (*o_punch)(struct obd_conn *conn, struct obdo *tgt, obd_size count,
- obd_off offset);
- int (*o_sync)(struct obd_conn *conn, struct obdo *tgt, obd_size count,
- obd_off offset);
- int (*o_migrate)(struct obd_conn *conn, struct obdo *dst,
- struct obdo *src, obd_size count, obd_off offset);
- int (*o_copy)(struct obd_conn *dstconn, struct obdo *dst,
- struct obd_conn *srconn, struct obdo *src,
- obd_size count, obd_off offset);
- int (*o_iterate)(struct obd_conn *conn, int (*)(obd_id, obd_gr, void *),
- obd_id *startid, obd_gr group, void *data);
- int (*o_preprw)(int cmd, struct obd_conn *conn,
- int objcount, struct obd_ioobj *obj,
- int niocount, struct niobuf *nb,
- struct niobuf *res);
- int (*o_commitrw)(int cmd, struct obd_conn *conn,
- int objcount, struct obd_ioobj *obj,
- int niocount, struct niobuf *res);
-};
-
-struct obd_request {
- struct obdo *oa;
- struct obd_conn *conn;
- __u32 plen1;
- char *pbuf1;
-};
-
-static inline int obd_check_conn(struct obd_conn *conn)
-{
- struct obd_device *obd;
- if (!conn) {
- printk("obd_check_conn: NULL conn\n");
- return -ENOTCONN;
- }
- obd = conn->oc_dev;
- if (!obd) {
- printk("obd_check_conn: NULL obd\n");
- return -ENODEV;
- }
-
- if (!obd->obd_flags & OBD_ATTACHED ) {
- printk("obd_check_conn: obd %d not attached\n", obd->obd_minor);
- return -ENODEV;
- }
-
- if (!obd->obd_flags & OBD_SET_UP) {
- printk("obd_check_conn: obd %d not setup\n", obd->obd_minor);
- return -ENODEV;
- }
-
- if (!obd->obd_type) {
- printk("obd_check_conn: obd %d not typed\n", obd->obd_minor);
- return -ENODEV;
- }
-
- if (!obd->obd_type->typ_ops) {
- printk("obd_check_conn: obd %d no operations\n", obd->obd_minor);
- return -EOPNOTSUPP;
- }
- return 0;
-}
-
-#define OBT(dev) dev->obd_type->typ_ops
-#define OBP(dev,op) dev->obd_type->typ_ops->o_ ## op
-
-#define OBD_CHECK_OP(conn,op) \
-do { \
- int rc = obd_check_conn(conn); \
- if (rc) { \
- printk("obd: error in operation: " #op "\n"); \
- return rc; \
- } \
- if (!OBP(conn->oc_dev,op)) { \
- printk("obd_" #op ": dev %d no operation\n", \
- conn->oc_dev->obd_minor); \
- return -EOPNOTSUPP; \
- } \
-} while (0)
-
-static inline int obd_get_info(struct obd_conn *conn, obd_count keylen, void *key,
- obd_count *vallen, void **val)
-{
- int rc;
- OBD_CHECK_OP(conn,get_info);
-
- rc = OBP(conn->oc_dev, get_info)(conn, keylen, key, vallen, val);
- EXIT;
- return rc;
-}
-
-static inline int obd_set_info(struct obd_conn *conn, obd_count keylen, void *key,
- obd_count vallen, void *val)
-{
- int rc;
- OBD_CHECK_OP(conn,set_info);
-
- rc = OBP(conn->oc_dev, set_info)(conn, keylen, key, vallen, val);
- EXIT;
- return rc;
-}
-
-static inline int obd_cleanup(struct obd_device *obd)
-{
- struct obd_conn conn;
- int rc;
- conn.oc_dev = obd;
-
- OBD_CHECK_OP((&conn),cleanup);
-
- rc = OBP(conn.oc_dev, cleanup)(obd);
- EXIT;
- return rc;
-}
-
-static inline int obd_create(struct obd_conn *conn, struct obdo *obdo)
-{
- int rc;
- OBD_CHECK_OP(conn,create);
-
- rc = OBP(conn->oc_dev, create)(conn, obdo);
- EXIT;
- return rc;
-}
-
-static inline int obd_destroy(struct obd_conn *conn, struct obdo *obdo)
-{
- int rc;
- OBD_CHECK_OP(conn,destroy);
-
- rc = OBP(conn->oc_dev, destroy)(conn, obdo);
- EXIT;
- return rc;
-}
-
-static inline int obd_getattr(struct obd_conn *conn, struct obdo *obdo)
-{
- int rc;
- OBD_CHECK_OP(conn,getattr);
-
- rc = OBP(conn->oc_dev, getattr)(conn, obdo);
- EXIT;
- return rc;
-}
-
-static inline int obd_setattr(struct obd_conn *conn, struct obdo *obdo)
-{
- int rc;
- OBD_CHECK_OP(conn,setattr);
-
- rc = OBP(conn->oc_dev, setattr)(conn, obdo);
- EXIT;
- return rc;
-}
-
-static inline int obd_connect(struct obd_conn *conn)
-{
- int rc;
- OBD_CHECK_OP(conn,connect);
-
- rc = OBP(conn->oc_dev, connect)(conn);
- EXIT;
- return rc;
-}
-
-static inline int obd_disconnect(struct obd_conn *conn)
-{
- int rc;
- OBD_CHECK_OP(conn,disconnect);
-
- rc = OBP(conn->oc_dev, disconnect)(conn);
- EXIT;
- return rc;
-}
-
-static inline int obd_statfs(struct obd_conn *conn, struct statfs *buf)
-{
- int rc;
- OBD_CHECK_OP(conn,statfs);
-
- rc = OBP(conn->oc_dev, statfs)(conn, buf);
- EXIT;
- return rc;
-}
-
-static inline int obd_punch(struct obd_conn *conn, struct obdo *tgt, obd_size count, obd_off offset)
-{
- int rc;
- OBD_CHECK_OP(conn,punch);
-
- rc = OBP(conn->oc_dev, punch)(conn, tgt, count, offset);
- EXIT;
- return rc;
-}
-
-static inline int obd_brw(int rw, struct obd_conn *conn, obd_count num_oa,
- struct obdo **oa, obd_count *oa_bufs, struct page **buf,
- obd_size *count, obd_off *offset, obd_flag *flags)
-{
- int rc;
- OBD_CHECK_OP(conn,brw);
-
- rc = OBP(conn->oc_dev, brw)(rw, conn, num_oa, oa, oa_bufs, buf,
- count, offset, flags);
- EXIT;
- return rc;
-}
-
-#endif
-
-/*
- * ======== OBD Metadata Support ===========
- */
-
-extern int obd_init_obdo_cache(void);
-extern void obd_cleanup_obdo_cache(void);
-
-
-static inline int obdo_has_inline(struct obdo *obdo)
-{
- return (obdo->o_valid & OBD_MD_FLINLINE &&
- obdo->o_obdflags & OBD_FL_INLINEDATA);
-};
-
-static inline int obdo_has_obdmd(struct obdo *obdo)
-{
- return (obdo->o_valid & OBD_MD_FLOBDMD &&
- obdo->o_obdflags & OBD_FL_OBDMDEXISTS);
-};
-
-#ifdef __KERNEL__
-/* support routines */
-extern kmem_cache_t *obdo_cachep;
-
-static __inline__ struct obdo *obdo_alloc(void)
-{
- struct obdo *oa = NULL;
-
- oa = kmem_cache_alloc(obdo_cachep, SLAB_KERNEL);
- memset(oa, 0, sizeof (*oa));
-
- return oa;
-}
-
-static __inline__ void obdo_free(struct obdo *oa)
-{
- if ( !oa )
- return;
- kmem_cache_free(obdo_cachep, oa);
-}
-
-static __inline__ struct obdo *obdo_fromid(struct obd_conn *conn, obd_id id,
- obd_mode mode, obd_flag valid)
-{
- struct obdo *oa;
- int err;
-
- ENTRY;
- oa = obdo_alloc();
- if ( !oa ) {
- EXIT;
- return ERR_PTR(-ENOMEM);
- }
-
- oa->o_id = id;
- oa->o_mode = mode;
- oa->o_valid = valid;
- if ((err = OBP(conn->oc_dev, getattr)(conn, oa))) {
- obdo_free(oa);
- EXIT;
- return ERR_PTR(err);
- }
- EXIT;
- return oa;
-}
-
-static inline void obdo_from_iattr(struct obdo *oa, struct iattr *attr)
-{
- unsigned int ia_valid = attr->ia_valid;
-
- if (ia_valid & ATTR_ATIME) {
- oa->o_atime = attr->ia_atime;
- oa->o_valid |= OBD_MD_FLATIME;
- }
- if (ia_valid & ATTR_MTIME) {
- oa->o_mtime = attr->ia_mtime;
- oa->o_valid |= OBD_MD_FLMTIME;
- }
- if (ia_valid & ATTR_CTIME) {
- oa->o_ctime = attr->ia_ctime;
- oa->o_valid |= OBD_MD_FLCTIME;
- }
- if (ia_valid & ATTR_SIZE) {
- oa->o_size = attr->ia_size;
- oa->o_valid |= OBD_MD_FLSIZE;
- }
- if (ia_valid & ATTR_MODE) {
- oa->o_mode = attr->ia_mode;
- oa->o_valid |= OBD_MD_FLMODE;
- if (!in_group_p(oa->o_gid) && !capable(CAP_FSETID))
- oa->o_mode &= ~S_ISGID;
- }
- if (ia_valid & ATTR_UID)
- {
- oa->o_uid = attr->ia_uid;
- oa->o_valid |= OBD_MD_FLUID;
- }
- if (ia_valid & ATTR_GID) {
- oa->o_gid = attr->ia_gid;
- oa->o_valid |= OBD_MD_FLGID;
- }
-}
-
-
-static inline void iattr_from_obdo(struct iattr *attr, struct obdo *oa)
-{
- unsigned int ia_valid = oa->o_valid;
-
- memset(attr, 0, sizeof(*attr));
- if (ia_valid & OBD_MD_FLATIME) {
- attr->ia_atime = oa->o_atime;
- attr->ia_valid |= ATTR_ATIME;
- }
- if (ia_valid & OBD_MD_FLMTIME) {
- attr->ia_mtime = oa->o_mtime;
- attr->ia_valid |= ATTR_MTIME;
- }
- if (ia_valid & OBD_MD_FLCTIME) {
- attr->ia_ctime = oa->o_ctime;
- attr->ia_valid |= ATTR_CTIME;
- }
- if (ia_valid & OBD_MD_FLSIZE) {
- attr->ia_size = oa->o_size;
- attr->ia_valid |= ATTR_SIZE;
- }
- if (ia_valid & OBD_MD_FLMODE) {
- attr->ia_mode = oa->o_mode;
- attr->ia_valid |= ATTR_MODE;
- if (!in_group_p(oa->o_gid) && !capable(CAP_FSETID))
- attr->ia_mode &= ~S_ISGID;
- }
- if (ia_valid & OBD_MD_FLUID)
- {
- attr->ia_uid = oa->o_uid;
- attr->ia_valid |= ATTR_UID;
- }
- if (ia_valid & OBD_MD_FLGID) {
- attr->ia_gid = oa->o_gid;
- attr->ia_valid |= ATTR_GID;
- }
-}
-
-
-/* WARNING: the file systems must take care not to tinker with
- attributes they don't manage (such as blocks). */
-
-static __inline__ void obdo_from_inode(struct obdo *dst, struct inode *src)
-{
- if ( dst->o_valid & OBD_MD_FLID )
- dst->o_id = src->i_ino;
- if ( dst->o_valid & OBD_MD_FLATIME )
- dst->o_atime = src->i_atime;
- if ( dst->o_valid & OBD_MD_FLMTIME )
- dst->o_mtime = src->i_mtime;
- if ( dst->o_valid & OBD_MD_FLCTIME )
- dst->o_ctime = src->i_ctime;
- if ( dst->o_valid & OBD_MD_FLSIZE )
- dst->o_size = src->i_size;
- if ( dst->o_valid & OBD_MD_FLBLOCKS ) /* allocation of space */
- dst->o_blocks = src->i_blocks;
- if ( dst->o_valid & OBD_MD_FLBLKSZ )
- dst->o_blksize = src->i_blksize;
- if ( dst->o_valid & OBD_MD_FLMODE )
- dst->o_mode = src->i_mode;
- if ( dst->o_valid & OBD_MD_FLUID )
- dst->o_uid = src->i_uid;
- if ( dst->o_valid & OBD_MD_FLGID )
- dst->o_gid = src->i_gid;
- if ( dst->o_valid & OBD_MD_FLFLAGS )
- dst->o_flags = src->i_flags;
- if ( dst->o_valid & OBD_MD_FLNLINK )
- dst->o_nlink = src->i_nlink;
- if ( dst->o_valid & OBD_MD_FLGENER )
- dst->o_generation = src->i_generation;
-}
-
-static __inline__ void obdo_to_inode(struct inode *dst, struct obdo *src)
-{
-
- if ( src->o_valid & OBD_MD_FLID )
- dst->i_ino = src->o_id;
- if ( src->o_valid & OBD_MD_FLATIME )
- dst->i_atime = src->o_atime;
- if ( src->o_valid & OBD_MD_FLMTIME )
- dst->i_mtime = src->o_mtime;
- if ( src->o_valid & OBD_MD_FLCTIME )
- dst->i_ctime = src->o_ctime;
- if ( src->o_valid & OBD_MD_FLSIZE )
- dst->i_size = src->o_size;
- if ( src->o_valid & OBD_MD_FLBLOCKS ) /* allocation of space */
- dst->i_blocks = src->o_blocks;
- if ( src->o_valid & OBD_MD_FLBLKSZ )
- dst->i_blksize = src->o_blksize;
- if ( src->o_valid & OBD_MD_FLMODE )
- dst->i_mode = src->o_mode;
- if ( src->o_valid & OBD_MD_FLUID )
- dst->i_uid = src->o_uid;
- if ( src->o_valid & OBD_MD_FLGID )
- dst->i_gid = src->o_gid;
- if ( src->o_valid & OBD_MD_FLFLAGS )
- dst->i_flags = src->o_flags;
- if ( src->o_valid & OBD_MD_FLNLINK )
- dst->i_nlink = src->o_nlink;
- if ( src->o_valid & OBD_MD_FLGENER )
- dst->i_generation = src->o_generation;
-}
-
-#endif
-
-static __inline__ void obdo_cpy_md(struct obdo *dst, struct obdo *src)
-{
-#ifdef __KERNEL__
- CDEBUG(D_INODE, "src obdo %Ld valid 0x%x, dst obdo %Ld\n",
- src->o_id, src->o_valid, dst->o_id);
-#endif
- if ( src->o_valid & OBD_MD_FLATIME )
- dst->o_atime = src->o_atime;
- if ( src->o_valid & OBD_MD_FLMTIME )
- dst->o_mtime = src->o_mtime;
- if ( src->o_valid & OBD_MD_FLCTIME )
- dst->o_ctime = src->o_ctime;
- if ( src->o_valid & OBD_MD_FLSIZE )
- dst->o_size = src->o_size;
- if ( src->o_valid & OBD_MD_FLBLOCKS ) /* allocation of space */
- dst->o_blocks = src->o_blocks;
- if ( src->o_valid & OBD_MD_FLBLKSZ )
- dst->o_blksize = src->o_blksize;
- if ( src->o_valid & OBD_MD_FLMODE )
- dst->o_mode = src->o_mode;
- if ( src->o_valid & OBD_MD_FLUID )
- dst->o_uid = src->o_uid;
- if ( src->o_valid & OBD_MD_FLGID )
- dst->o_gid = src->o_gid;
- if ( src->o_valid & OBD_MD_FLFLAGS )
- dst->o_flags = src->o_flags;
- /*
- if ( src->o_valid & OBD_MD_FLOBDFLG )
- dst->o_obdflags = src->o_obdflags;
- */
- if ( src->o_valid & OBD_MD_FLNLINK )
- dst->o_nlink = src->o_nlink;
- if ( src->o_valid & OBD_MD_FLGENER )
- dst->o_generation = src->o_generation;
- if ( src->o_valid & OBD_MD_FLINLINE &&
- src->o_obdflags & OBD_FL_INLINEDATA) {
- memcpy(dst->o_inline, src->o_inline, sizeof(src->o_inline));
- dst->o_obdflags |= OBD_FL_INLINEDATA;
- }
- if ( src->o_valid & OBD_MD_FLOBDMD &&
- src->o_obdflags & OBD_FL_OBDMDEXISTS) {
- memcpy(dst->o_obdmd, src->o_obdmd, sizeof(src->o_obdmd));
- dst->o_obdflags |= OBD_FL_OBDMDEXISTS;
- }
-
- dst->o_valid |= src->o_valid;
-}
-
-
-/* returns FALSE if comparison (by flags) is same, TRUE if changed */
-static __inline__ int obdo_cmp_md(struct obdo *dst, struct obdo *src,
- obd_flag compare)
-{
- int res = 0;
-
- if ( compare & OBD_MD_FLATIME )
- res = (res || (dst->o_atime != src->o_atime));
- if ( compare & OBD_MD_FLMTIME )
- res = (res || (dst->o_mtime != src->o_mtime));
- if ( compare & OBD_MD_FLCTIME )
- res = (res || (dst->o_ctime != src->o_ctime));
- if ( compare & OBD_MD_FLSIZE )
- res = (res || (dst->o_size != src->o_size));
- if ( compare & OBD_MD_FLBLOCKS ) /* allocation of space */
- res = (res || (dst->o_blocks != src->o_blocks));
- if ( compare & OBD_MD_FLBLKSZ )
- res = (res || (dst->o_blksize != src->o_blksize));
- if ( compare & OBD_MD_FLMODE )
- res = (res || (dst->o_mode != src->o_mode));
- if ( compare & OBD_MD_FLUID )
- res = (res || (dst->o_uid != src->o_uid));
- if ( compare & OBD_MD_FLGID )
- res = (res || (dst->o_gid != src->o_gid));
- if ( compare & OBD_MD_FLFLAGS )
- res = (res || (dst->o_flags != src->o_flags));
- if ( compare & OBD_MD_FLNLINK )
- res = (res || (dst->o_nlink != src->o_nlink));
- if ( compare & OBD_MD_FLGENER )
- res = (res || (dst->o_generation != src->o_generation));
- /* XXX Don't know if thses should be included here - wasn't previously
- if ( compare & OBD_MD_FLINLINE )
- res = (res || memcmp(dst->o_inline, src->o_inline));
- if ( compare & OBD_MD_FLOBDMD )
- res = (res || memcmp(dst->o_obdmd, src->o_obdmd));
- */
- return res;
-}
-
-
-#ifdef __KERNEL__
-int obd_register_type(struct obd_ops *ops, char *nm);
-int obd_unregister_type(char *nm);
-
-struct obd_client {
- struct list_head cli_chain;
- struct obd_device *cli_obd;
- unsigned int cli_id;
- unsigned long cli_prealloc_quota;
- struct list_head cli_prealloc_inodes;
-};
-
-
-struct obd_prealloc_inode {
- struct list_head obd_prealloc_chain;
- unsigned long inode;
-};
-
-/* generic operations shared by various OBD types */
-int gen_multi_setup(struct obd_device *obddev, uint32_t len, void *data);
-int gen_multi_cleanup(struct obd_device *obddev);
-int gen_multi_attach(struct obd_device *obddev, uint32_t len, void *data);
-int gen_multi_detach(struct obd_device *obddev);
-int gen_connect (struct obd_conn *conn);
-int gen_disconnect(struct obd_conn *conn);
-struct obd_client *gen_client(const struct obd_conn *);
-int gen_cleanup(struct obd_device *obddev);
-int gen_copy_data(struct obd_conn *dst_conn, struct obdo *dst,
- struct obd_conn *src_conn, struct obdo *src,
- obd_size count, obd_off offset);
-
-#endif
-
-/* sysctl.c */
-extern void obd_sysctl_init (void);
-extern void obd_sysctl_clean (void);
-
-#define CHKCONN(conn) do { if (!gen_client(conn)) {\
- printk("%s %d invalid client %u\n", __FILE__, __LINE__, \
- conn->oc_id);\
- return -EINVAL; }} while (0)
-
-
-
-#endif /* __LINUX_CLASS_OBD_H */
+++ /dev/null
-#ifndef _OBD_EXT2
-#define _OBD_EXT2
-/*
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- */
-
-#define OBD_EXT2_RUNIT _IOWR('f', 61, long)
-
-#ifndef OBD_EXT2_DEVICENAME
-#define OBD_EXT2_DEVICENAME "obdext2"
-#endif
-
-struct ext2_obd {
- struct super_block * e2_sb;
- struct vfsmount *e2_vfsmnt;
-};
-
-
-/* development definitions */
-extern struct obdfs_sb_info *obd_sbi;
-extern struct file_operations *obd_fso;
-
-/* ext2_obd.c */
-extern struct obd_ops ext2_obd_ops;
-
-
-#include <linux/ext2_fs.h>
-
-/* super.c */
-#ifdef EXT2_OBD_DEBUG
-# undef ext2_debug
-# define ext2_debug(format, a...) CDEBUG(D_EXT2, format, ## a)
-# define ext2_error ext2_warning
-# define ext2_panic ext2_warning
-# define ext2_warning(sb, func, format, a...) CDEBUG(D_WARNING, format, ## a)
-#else
-# undef ext2_debug
-# define ext2_debug(format, a...) {}
-# define ext2_error(sb, func, format, a...) printk(KERN_ERR "%s: " format, func, ## a)
-# define ext2_panic(sb, func, format, a...) printk(KERN_CRIT "%s: " format, func, ## a)
-# define ext2_warning(sb, func, format, a...) printk(KERN_WARNING "%s: " format, func, ## a)
-#endif
-
-extern struct super_operations ext2_sops;
-int obd_remount (struct super_block * sb, int * flags, char * data);
-struct super_block * ext2_read_super (struct super_block * sb, void * data,
- int silent);
-/* punch.c */
-void ext2_truncate (struct inode * inode);
-int ext2_punch (struct inode * inode, loff_t start, size_t count);
-
-#endif
+++ /dev/null
-#ifndef _OBD_FILTER_H
-#define _OBD_FILTER_H
-/*
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- */
-
-
-#ifndef OBD_FILTER_DEVICENAME
-#define OBD_FILTER_DEVICENAME "obdfilter"
-#endif
-
-struct run_ctxt {
- struct vfsmount *pwdmnt;
- struct dentry *pwd;
- mm_segment_t fs;
-};
-
-struct filter_obd {
- char *fo_fstype;
- struct super_block * fo_sb;
- struct vfsmount *fo_vfsmnt;
- struct run_ctxt fo_ctxt;
- spinlock_t fo_lock;
- __u64 fo_lastino;
- struct file_operations *fo_fop;
- struct inode_operations *fo_iop;
- struct address_space_operations *fo_aops;
-};
-
-
-extern struct obd_ops filter_obd_ops;
-
-#endif
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
- *
- * This file is part of Lustre, http://www.lustre.org.
- *
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Data structures for object storage targets and client: OST & OSC's
- *
- * See also lustre_idl.h for wire formats of requests.
- *
- */
-
-#ifndef _LUSTRE_OSC_H
-#define _LUSTRE_OSC_H
-
-#include <linux/obd_support.h>
-#include <linux/lustre_net.h>
-
-#define OST_EXIT 1
-#define LUSTRE_OST_NAME "ost"
-
-struct osc_obd {
- struct obd_device *osc_tgt;
- struct lustre_peer osc_peer;
-};
-
-#endif
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
- *
- * This file is part of Lustre, http://www.lustre.org.
- *
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Data structures for object storage targets and client: OST & OSC's
- *
- * See also lustre_idl.h for wire formats of requests.
- *
- */
-
-#ifndef _LUSTRE_OST_H
-#define _LUSTRE_OST_H
-
-#include <linux/obd_support.h>
-
-#define OST_EXIT 1
-#define LUSTRE_OST_NAME "ost"
-#define LUSTRE_OSC_NAME "osc"
-
-struct ost_obd {
- struct obd_device *ost_tgt;
- struct obd_conn ost_conn;
- struct task_struct *ost_thread;
- wait_queue_head_t ost_waitq;
- wait_queue_head_t ost_done_waitq;
- int ost_flags;
- spinlock_t ost_lock;
- struct list_head ost_reqs;
-
- struct ptlrpc_service *ost_service;
-};
-
-struct ost_request {
- struct list_head rq_list;
- struct ost_obd *rq_obd;
- int rq_status;
-
- char *rq_reqbuf;
- int rq_reqlen;
- struct ost_req_hdr *rq_reqhdr;
- struct ost_req *rq_req;
-
- char *rq_repbuf;
- int rq_replen;
- struct ost_rep_hdr *rq_rephdr;
- struct ost_rep *rq_rep;
-
- void *rq_reply_handle;
- wait_queue_head_t rq_wait_for_rep;
-};
-
-/* ost/ost_pack.c */
-int ost_pack_req(char *buf1, int buflen1, char *buf2, int buflen2, struct ptlreq_hdr **hdr, struct ost_req **req, int *len, char **buf);
-int ost_unpack_req(char *buf, int len, struct ptlreq_hdr **hdr, struct ost_req **req);
-int ost_pack_rep(void *buf1, __u32 buflen1, void *buf2, __u32 buflen2, struct ptlrep_hdr **hdr, struct ost_rep **rep, int *len, char **buf);
-int ost_unpack_rep(char *buf, int len, struct ptlrep_hdr **hdr, struct ost_rep **rep);
-void ost_pack_niobuf(void **tmp, void *addr, __u64 offset, __u32 len,
- __u32 flags);
-void ost_unpack_niobuf(void **tmp, struct niobuf **nbp);
-void ost_pack_ioo(void **tmp, struct obdo *oa, int bufcnt);
-void ost_unpack_ioo(void **tmp, struct obd_ioobj **ioop);
-void *ost_req_buf2(struct ost_req *req);
-void *ost_req_buf1(struct ost_req *req);
-void *ost_rep_buf2(struct ost_rep *rep);
-void *ost_rep_buf1(struct ost_rep *rep);
-
-
-
-#endif
-
-
+++ /dev/null
-#ifndef _OBD_RAID1
-#define _OBD_RAID1
-/*
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- */
-
-#include <linux/obd_class.h>
-
-#define MAX_RAID1 16
-
-#ifndef OBD_RAID1_DEVICENAME
-#define OBD_RAID1_DEVICENAME "obdraid1"
-#endif
-
-struct raid1_obd {
- unsigned int raid1_count; /* how many replicas */
- /* devices to replicate on */
- struct obd_device *raid1_devlist[MAX_RAID1];
- /* connections we make */
- struct obd_conn_info raid1_connections[MAX_RAID1];
- struct list_head raid1_clients; /* clients we have */
-};
-
-
-/* development definitions */
-extern struct obdfs_sb_info *obd_sbi;
-extern struct file_operations *obd_fso;
-
-/* obd_raid1.c */
-extern struct obd_ops raid1_obd_ops;
-inline long ext2_block_map (struct inode * inode, long block);
-
-#endif
+++ /dev/null
-#ifndef __OBD_RPC_H
-#define __OBD_RPC_H
-/*
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- */
-
-#include <linux/sunrpc/svc.h>
-#define OBD_TGT_VERSION 001
-
-#define OBD_TGT_TCP 0x1
-#define OBD_TGT_INTR 0x2
-#define OBD_TGT_SOFT 0x4
-
-
-/* generic wrappable next */
-
-#define NEXT_INDEX(index, max) \
- (((index + 1) >= max) ? 0 : (index + 1))
-
-
-/* error codes */
-
-enum obd_stat {
- OBD_OK = 0,
- OBDERR_PERM = 1,
- OBDERR_NOENT = 2,
- OBDERR_IO = 5,
- OBDERR_NXIO = 6,
- OBDERR_ACCESS = 13,
- OBDERR_EXIST = 17,
- OBDERR_XDEV = 18,
- OBDERR_NODEV = 19,
- OBDERR_INVAL = 22,
- OBDERR_FBIG = 27,
- OBDERR_NOSPC = 28,
- OBDERR_ROFS = 30,
- OBDERR_OPNOTSUPP = 45,
- OBDERR_DQUOT = 69
-};
-
-
-extern struct rpc_program obd_program;
-
-
-struct obd_target {
- struct sockaddr_in tgt_addr;
- int tgt_flags;
- int tgt_timeo;
- int tgt_retrans;
- int tgt_hostnamelen;
- char tgt_hostname[0];
-
-};
-
-
-struct rpc_obd {
- struct rpc_clnt * handle; /* RPC client handle */
- struct sockaddr_in addr;
- int flags; /* various flags */
- int timeo;
- int retrans;
- int rsize; /* read size */
- int wsize; /* write size */
- unsigned int bsize; /* server block size */
- char * hostname; /* remote hostname */
-};
-
-
-#define OBD_PROGRAM 300001
-#define OBD_VERSION 1
-#define OBDPROC_NULL 0
-#define OBDPROC_ECHOINT 1
-
-#ifdef OBD_NEED_XDR_TYPES
-
-struct obd_echoint_in {
- __u32 in;
-};
-
-struct obd_echoint_out {
- __u32 out;
-};
-
-
-#endif /* OBD_NEED_XDR_TYPES */
-
-
-int obd_proc_echoint(struct rpc_obd *target, __u32 in, __u32 *out);
-
-
-#endif
+++ /dev/null
-#ifndef _OBD_SNAP
-#define _OBD_SNAP
-/*
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- */
-
-#define OBD_SNAP_MAGIC 0xfffffff3 /* an unlikely block number */
-
-#ifndef OBD_SNAP_DEVICENAME
-#define OBD_SNAP_DEVICENAME "obdsnap"
-#endif
-
-/* ioctls for manipulating snapshots 40 - 60 */
-#define OBD_SNAP_SETTABLE _IOWR('f', 40, long)
-#define OBD_SNAP_PRINTTABLE _IOWR('f', 41, long)
-#define OBD_SNAP_DELETE _IOWR('f', 42, long)
-#define OBD_SNAP_RESTORE _IOWR('f', 43, long)
-
-/* this is the obd device descriptor:
- * - current snapshot ends up in first slot of this array
- */
-struct snap_obd {
- unsigned int snap_index; /* which snapshot index are we accessing */
- int snap_tableno;
-};
-
-void snap_use(int table_no, int snap_index) ;
-void snap_unuse(int table_no, int snap_index) ;
-int snap_is_used(int table_no, int snap_index) ;
-int snap_table_attach(int tableno, int snap_index);
-
-#endif
+++ /dev/null
-#ifndef __OBD_SNAP_SUPP_H
-#define __OBD_SNAP_SUPP_H
-/*
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- */
-
-/* What we use to point to IDs in the obdmd data for snapshots. If we use
- * obd_id (8 bytes) instead of ino_t (4 bytes), we halve the number of
- * available snapshot slots (14 in 56 bytes vs. 7 in 56 bytes until we
- * increase the size of OBD_OBDMDSZ).
- */
-typedef ino_t snap_id;
-
-/* maximum number of snapshot tables we maintain in the kernel */
-#define SNAP_MAX_TABLES 8
-
-/* maximum number of snapshots per device
- must fit in "o_obdmd" area of struct obdo */
-#define SNAP_MAX ((OBD_OBDMDSZ - sizeof(uint32_t))/sizeof(snap_id))
-
-struct snap_md {
- uint32_t m_magic;
- snap_id m_ids[SNAP_MAX]; /* id of snaps; slot 0 has current id */
-};
-
-
-/* if time is 0 this designates the "current" snapshot, i.e.
- the head of the tree
-*/
-struct snap {
- time_t time;
- int index;
-};
-
-/* snap ioctl data for attach: current always in first slot of this array */
-struct snap_obd_data {
- int snap_dev; /* which device contains the data */
- unsigned int snap_index;/* which snapshot is ours */
- unsigned int snap_table;/* which table do we use */
-};
-
-
-/* snap ioctl data for table fiddling */
-struct snap_table_data {
- int tblcmd_no; /* which table */
- unsigned int tblcmd_count; /* how many snaps */
- struct snap tblcmd_snaps[SNAP_MAX]; /* sorted times! */
-};
-
-
-struct snap_table {
- spinlock_t tbl_lock;
- unsigned int tbl_count; /* how many snapshots exist in this table*/
- int tbl_used; /* bitmap of snaps in use by a device */
- time_t tbl_times[SNAP_MAX];
- int tbl_index[SNAP_MAX];
-};
-
-struct snap_iterdata {
- struct obd_conn *conn;
- struct obd_conn *ch_conn;
- int index;
- int previndex;
- int currentindex;
- int prevslot;
- time_t prevtime;
-};
-
-inline struct obd_conn *child_conn(struct obd_conn *conn);
-int snap_deleteobj(obd_id id, obd_gr group, void *data);
-int snap_restoreobj(obd_id id, obd_gr group, void *data);
-int snap_printobj(obd_id id, obd_gr group, void *data);
-int snap_iocontrol(int cmd, struct obd_conn *conn, int len, void *karg, void *uarg);
-
-/* In the future, this function may have to deal with offsets into the obdmd.
- * Currently, we assume we have the whole obdmd struct.
- */
-static __inline__ struct snap_md *snap_obdmd(struct obdo *oa)
-{
- return ((struct snap_md *)(&oa->o_obdmd));
-}
-#endif
+++ /dev/null
-#ifndef _OBD_SUPPORT
-#define _OBD_SUPPORT
-/*
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- */
-
-#include <linux/autoconf.h>
-#include <linux/slab.h>
-#include <linux/kp30.h>
-
-#define obd_unlock_page(page) \
-do { \
- if (PageLocked(page)) { \
- UnlockPage(page); \
- } else { \
- printk("file %s, line %d: expecting locked page\n", \
- __FILE__, __LINE__); \
- } \
-} while(0)
-
-/*
- * Debug code
- */
-/* global variables */
-extern int obd_debug_level;
-extern int obd_print_entry;
-extern int obd_inodes;
-extern int obd_pages;
-extern long obd_memory;
-
-#define EXT2_OBD_DEBUG
-
-#ifdef EXT2_OBD_DEBUG
-#define CMD(cmd) (( cmd == READ ) ? "read" : "write")
-
-/* Inode common information printed out (used by obdfs and ext2obd inodes) */
-#define ICDEBUG(inode) { \
- CDEBUG(D_INFO, "ino %ld, atm %ld, mtm %ld, ctm %ld, size %Ld, " \
- "blocks %ld\n", inode->i_ino, inode->i_atime, \
- inode->i_mtime, inode->i_ctime, inode->i_size, \
- inode->i_blocks); \
- CDEBUG(D_INFO, "mode %o, uid %d, gid %d, nlnk %d, count %d\n", \
- inode->i_mode, inode->i_uid, inode->i_gid, \
- inode->i_nlink, atomic_read(&inode->i_count)); \
-}
-
-/* Ext2 inode information */
-#define EXDEBUG(inode) { \
- ICDEBUG(inode); \
- CDEBUG(D_INFO, "ext2 blocks: %d %d %d %d %d %d %d %d\n", \
- inode->u.ext2_i.i_data[0], inode->u.ext2_i.i_data[1], \
- inode->u.ext2_i.i_data[2], inode->u.ext2_i.i_data[3], \
- inode->u.ext2_i.i_data[4], inode->u.ext2_i.i_data[5], \
- inode->u.ext2_i.i_data[6], inode->u.ext2_i.i_data[7]); \
-}
-
-/* OBDFS inode information */
-#define OIDEBUG(inode) { \
- ICDEBUG(inode); \
- CDEBUG(D_INFO,"oinfo: flags 0x%08x\n", obdfs_i2info(inode)->oi_flags);\
- /* obdfs_print_plist(inode); */ \
-}
-
-#define ODEBUG(obdo) { \
- CDEBUG(D_INFO, "id %ld, atm %ld, mtm %ld, ctm %ld, " \
- "size %ld, blocks %ld\n", \
- (long)(obdo)->o_id, (long)(obdo)->o_atime, \
- (long)(obdo)->o_mtime, (long)(obdo)->o_ctime, \
- (long)(obdo)->o_size, (long)(obdo)->o_blocks); \
- CDEBUG(D_INFO, " mode %o, uid %d, gid %d, flg 0x%0x, " \
- "obdflg 0x%0x, nlnk %d, valid 0x%0x\n", \
- (obdo)->o_mode, (obdo)->o_uid, (obdo)->o_gid, (obdo)->o_flags,\
- (obdo)->o_obdflags, (obdo)->o_nlink, (obdo)->o_valid); \
-}
-
-#define PDEBUG(page,msg) { \
- if (page){ \
- char *uptodate = (Page_Uptodate(page)) ? "upto" : "outof";\
- char *locked = (PageLocked(page)) ? "" : "un"; \
- char *buffer = page->buffers ? "buffer" : ""; \
- int count = page_count(page); \
- long index = page->index; \
- CDEBUG(D_CACHE, "%s: ** off %ld, %sdate, %slocked, flag %ld,"\
- " cnt %d page 0x%p pages %ld virt %lx %s**\n", \
- msg, index, uptodate, locked, page->flags, count,\
- page, page->mapping ? page->mapping->nrpages : -1,\
- page->virtual, buffer); \
- } else \
- CDEBUG(D_CACHE, "** %s: no page\n", msg); \
-}
-
-#if 0
-#define iget(sb, ino) obd_iget(sb, ino)
-#define iput(sb, ino) obd_iput(sb, ino)
-
-static inline struct inode *obd_iget(struct super_block *sb, unsigned long ino)
-{
- struct inode *inode;
-
- if ((inode = iget(sb, ino)) == NULL)
- CDEBUG(D_INODE, "NULL in iget for %ld\n", ino);
- else
- obd_inodes++;
- return inode;
-}
-
-static inline void obd_iput(struct inode *inode)
-{
- if (inode == NULL)
- CDEBUG(D_INODE, "NULL in iput\n");
- else
- obd_inodes--;
-}
-#endif
-
-#else /* EXT2_OBD_DEBUG */
-
-#define CDEBUG(mask, format, a...) {}
-#define ENTRY {}
-#define EXIT {}
-#define ODEBUG(obdo) {}
-#define EXDEBUG(inode) {}
-#define OIDEBUG(inode) {}
-#define PDEBUG(page, cmd) {}
-
-#endif /* EXT2_OBD_DEBUG */
-
-#define OBD_ALLOC(ptr, size) \
-do { \
- (ptr) = kmalloc((unsigned long)(size), GFP_KERNEL); \
- obd_memory += (size); \
- CDEBUG(D_MALLOC, "kmalloced: %ld at %x (tot %ld).\n", \
- (long)(size), (int)(ptr), obd_memory); \
- if (ptr == NULL) { \
- CERROR("kernel malloc failed at %s:%d\n", \
- __FILE__, __LINE__); \
- } else { \
- memset((ptr), 0, (size)); \
- } \
-} while (0)
-
-#define OBD_FREE(ptr, size) \
-do { \
- kfree((ptr)); \
- obd_memory -= (size); \
- CDEBUG(D_MALLOC, "kfreed: %d at %x (tot %ld).\n", \
- (int)(size), (int)(ptr), obd_memory); \
-} while (0)
-
-#endif
+++ /dev/null
-/*
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * obdtrace (header file) - is useful for tracing and performance
- * debug of the Lustre obd protocol stack. obdtrace is a transparent
- * logical obd driver that prints commands their in- and outbound
- * parameters. obdtrace maintains statistics about number and latency
- * of the obd commands that pass through it. As such it is also use
- * for performance analysis.
- *
- * Copyright (c) 2001 Rumi Zahir <rumi.zahir@intel.com>
- */
-
-#ifndef __OBD_TRACE_H
-#define __OBD_TRACE_H
-
-struct obd_device;
-struct obdtrace_opstats;
-
-struct trace_obd {
- struct obdtrace_opstats *stats;
-};
-
-#endif
+++ /dev/null
-/* object based disk file system
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * Copyright (C), 1999, Stelias Computing Inc
- *
- *
- */
-
-
-#ifndef _OBDFS_H
-#define _OBDFS_H
-#include <linux/obd_class.h>
-#include <linux/obdo.h>
-#include <linux/list.h>
-
-/* super.c */
-struct obdfs_pgrq {
- struct list_head rq_plist; /* linked list of req's */
- unsigned long rq_jiffies;
- struct page *rq_page; /* page to be written */
-};
-
-extern struct list_head obdfs_super_list; /* list of all OBDFS superblocks */
-
-
-
-/* dir.c */
-extern struct file_operations obdfs_dir_operations;
-extern struct inode_operations obdfs_dir_inode_operations;
-
-/* file.c */
-extern struct file_operations obdfs_file_operations;
-extern struct inode_operations obdfs_file_inode_operations;
-
-/* flush.c */
-void obdfs_dequeue_pages(struct inode *inode);
-int obdfs_flushd_init(void);
-int obdfs_flushd_cleanup(void);
-int obdfs_flush_reqs(struct list_head *inode_list, unsigned long check_time);
-int obdfs_flush_dirty_pages(unsigned long check_time);
-
-/* namei.c */
-
-/* rw.c */
-int obdfs_do_writepage(struct page *, int sync);
-int obdfs_init_pgrqcache(void);
-void obdfs_cleanup_pgrqcache(void);
-inline void obdfs_pgrq_del(struct obdfs_pgrq *pgrq);
-int obdfs_readpage(struct file *file, struct page *page);
-int obdfs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to);
-int obdfs_commit_write(struct file *file, struct page *page, unsigned from, unsigned to);
-int obdfs_writepage(struct page *page);
-struct page *obdfs_getpage(struct inode *inode, unsigned long offset,
- int create, int locked);
-int obdfs_write_one_page(struct file *file, struct page *page,
- unsigned long offset, unsigned long bytes,
- const char * buf);
-int obdfs_do_vec_wr(struct inode **inodes, obd_count num_io, obd_count num_oa,
- struct obdo **obdos, obd_count *oa_bufs,
- struct page **pages, char **bufs, obd_size *counts,
- obd_off *offsets, obd_flag *flags);
-void obdfs_truncate(struct inode *inode);
-
-/* super.c */
-extern long obdfs_cache_count;
-extern long obdfs_mutex_start;
-
-/* symlink.c */
-extern struct inode_operations obdfs_fast_symlink_inode_operations;
-extern struct inode_operations obdfs_symlink_inode_operations;
-
-/* sysctl.c */
-void obdfs_sysctl_init(void);
-void obdfs_sysctl_clean(void);
-
-static inline struct obdfs_sb_info *obdfs_i2sbi(struct inode *inode)
-{
- return (struct obdfs_sb_info *) &(inode->i_sb->u.generic_sbp);
-}
-
-static inline struct list_head *obdfs_iplist(struct inode *inode)
-{
- struct obdfs_inode_info *info = obdfs_i2info(inode);
-
- return &info->oi_pages;
-}
-
-static inline struct list_head *obdfs_islist(struct inode *inode)
-{
- struct obdfs_inode_info *info = obdfs_i2info(inode);
-
- return &info->oi_inodes;
-}
-
-static inline struct list_head *obdfs_slist(struct inode *inode)
-{
- struct obdfs_sb_info *sbi = obdfs_i2sbi(inode);
-
- return &sbi->osi_inodes;
-}
-
-static void inline obdfs_set_size (struct inode *inode, obd_size size)
-{
- inode->i_size = size;
- inode->i_blocks = (inode->i_size + inode->i_sb->s_blocksize - 1) >>
- inode->i_sb->s_blocksize_bits;
-} /* obdfs_set_size */
-
-
-#if 0 /* PAGE CACHE DISABLED */
-
-#define obd_down(mutex) { \
- /* CDEBUG(D_INFO, "get lock\n"); */ \
- obdfs_mutex_start = jiffies; \
- down(mutex); \
- if (jiffies - obdfs_mutex_start) \
- CDEBUG(D_CACHE, "waited on mutex %ld jiffies\n", \
- jiffies - obdfs_mutex_start); \
-}
-
-#define obd_up(mutex) { \
- up(mutex); \
- if (jiffies - obdfs_mutex_start > 1) \
- CDEBUG(D_CACHE, "held mutex for %ld jiffies\n", \
- jiffies - obdfs_mutex_start); \
- /* CDEBUG(D_INFO, "free lock\n"); */ \
-}
-
-/* We track if a page has been added to the OBD page cache by stting a
- * flag on the page. We have chosen a bit that will hopefully not be
- * used for a while.
- */
-#define PG_obdcache 29
-#define OBDAddCachePage(page) test_and_set_bit(PG_obdcache, &(page)->flags)
-#define OBDClearCachePage(page) clear_bit(PG_obdcache, &(page)->flags)
-
-static inline void obdfs_print_plist(struct inode *inode)
-{
- struct list_head *page_list = obdfs_iplist(inode);
- struct list_head *tmp;
-
- CDEBUG(D_INFO, "inode %ld: page", inode->i_ino);
- /* obd_down(&obdfs_i2sbi(inode)->osi_list_mutex); */
- if (list_empty(page_list)) {
- CDEBUG(D_INFO, " list empty\n");
- obd_up(&obdfs_i2sbi(inode)->osi_list_mutex);
- return;
- }
-
- tmp = page_list;
- while ( (tmp = tmp->next) != page_list) {
- struct obdfs_pgrq *pgrq;
- pgrq = list_entry(tmp, struct obdfs_pgrq, rq_plist);
- CDEBUG(D_INFO, " %p", pgrq->rq_page);
- }
- CDEBUG(D_INFO, "\n");
- /* obd_up(&obdfs_i2sbi(inode)->osi_list_mutex); */
-}
-#endif
-
-
-#endif
-
+++ /dev/null
-#ifndef OBD_H
-#define OBD_H
-/*
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- */
-
-struct obdfs_inode_info {
- int oi_flags;
- struct list_head oi_inodes;
- struct list_head oi_pages;
- char oi_inline[OBD_INLINESZ];
-};
-
-struct obdfs_sb_info {
- struct list_head osi_list; /* list of supers */
- struct obd_conn osi_conn;
- struct super_block *osi_super;
- struct obd_device *osi_obd;
- ino_t osi_rootino; /* number of root inode */
- int osi_minor; /* minor of /dev/obdX */
- struct list_head osi_inodes; /* list of dirty inodes */
- unsigned long osi_cache_count;
- struct semaphore osi_list_mutex;
-};
-
-
-static inline struct obdfs_inode_info *obdfs_i2info(struct inode *inode)
-{
- return (struct obdfs_inode_info *)&(inode->u.generic_ip);
-}
-
-static inline int obdfs_has_inline(struct inode *inode)
-{
- return (obdfs_i2info(inode)->oi_flags & OBD_FL_INLINEDATA);
-}
-
-static void inline obdfs_from_inode(struct obdo *oa, struct inode *inode)
-{
- struct obdfs_inode_info *oinfo = obdfs_i2info(inode);
-
- CDEBUG(D_INFO, "src inode %ld, dst obdo %ld valid 0x%08x\n",
- inode->i_ino, (long)oa->o_id, oa->o_valid);
- obdo_from_inode(oa, inode);
- if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
- CDEBUG(D_INODE, "copying device %x from inode to obdo\n",
- inode->i_rdev);
- *((obd_rdev *)oa->o_inline) = kdev_t_to_nr(inode->i_rdev);
- oa->o_obdflags |= OBD_FL_INLINEDATA;
- oa->o_valid |= OBD_MD_FLINLINE;
- } else if (obdfs_has_inline(inode)) {
- CDEBUG(D_INODE, "copying inline data from inode to obdo\n");
- memcpy(oa->o_inline, oinfo->oi_inline, OBD_INLINESZ);
- oa->o_obdflags |= OBD_FL_INLINEDATA;
- oa->o_valid |= OBD_MD_FLINLINE;
- }
-} /* obdfs_from_inode */
-
-static void inline obdfs_to_inode(struct inode *inode, struct obdo *oa)
-{
- struct obdfs_inode_info *oinfo = obdfs_i2info(inode);
-
- CDEBUG(D_INFO, "src obdo %ld valid 0x%08x, dst inode %ld\n",
- (long)oa->o_id, oa->o_valid, inode->i_ino);
-
- obdo_to_inode(inode, oa);
-
- if (obdo_has_inline(oa)) {
- if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
- S_ISFIFO(inode->i_mode)) {
- obd_rdev rdev = *((obd_rdev *)oa->o_inline);
- CDEBUG(D_INODE,
- "copying device %x from obdo to inode\n", rdev);
- init_special_inode(inode, inode->i_mode, rdev);
- } else {
- CDEBUG(D_INFO, "copying inline from obdo to inode\n");
- memcpy(oinfo->oi_inline, oa->o_inline, OBD_INLINESZ);
- }
- oinfo->oi_flags |= OBD_FL_INLINEDATA;
- }
-} /* obdfs_to_inode */
-
-#define NOLOCK 0
-#define LOCKED 1
-
-#ifdef OPS
-#warning "*** WARNING redefining OPS"
-#else
-#define OPS(sb,op) ((struct obdfs_sb_info *)(& (sb)->u.generic_sbp))->osi_ops->o_ ## op
-#define IOPS(inode,op) ((struct obdfs_sb_info *)(&(inode)->i_sb->u.generic_sbp))->osi_ops->o_ ## op
-#endif
-
-#ifdef ID
-#warning "*** WARNING redefining ID"
-#else
-#define ID(sb) (&((struct obdfs_sb_info *)( &(sb)->u.generic_sbp))->osi_conn)
-#define IID(inode) (&((struct obdfs_sb_info *)( &(inode)->i_sb->u.generic_sbp))->osi_conn)
-#endif
-
-#define OBDFS_SUPER_MAGIC 0x4711
-
-#endif
+++ /dev/null
-.Xrefs
-config.log
-config.status
-configure
-Makefile
-Makefile.in
-.deps
-TAGS
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
- *
- * This file is part of Lustre, http://www.lustre.org.
- *
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * (Un)packing of MDS and OST request records
- *
- */
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/sched.h>
-#include <linux/lp.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/fcntl.h>
-#include <linux/delay.h>
-#include <linux/skbuff.h>
-#include <linux/proc_fs.h>
-#include <linux/fs.h>
-#include <linux/poll.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <asm/io.h>
-#include <asm/segment.h>
-#include <asm/system.h>
-#include <asm/poll.h>
-#include <asm/uaccess.h>
-
-#define DEBUG_SUBSYSTEM S_MDS
-
-#include <linux/obd_support.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
-#include <linux/lustre_mds.h>
-
-int mds_pack_req(char *name, int namelen, char *tgt, int tgtlen,
- struct ptlreq_hdr **hdr, union ptl_req *r,
- int *len, char **buf)
-{
- struct mds_req *req;
- char *ptr;
-
- *len = sizeof(**hdr) + size_round(namelen) + size_round(tgtlen) +
- sizeof(*req);
-
- OBD_ALLOC(*buf, *len);
- if (!*buf) {
- EXIT;
- return -ENOMEM;
- }
-
- memset(*buf, 0, *len);
- *hdr = (struct ptlreq_hdr *)(*buf);
- req = (struct mds_req *)(*buf + sizeof(**hdr));
- r->mds = req;
-
- ptr = *buf + sizeof(**hdr) + sizeof(*req);
-
- (*hdr)->type = MDS_TYPE_REQ;
-
- req->namelen = NTOH__u32(namelen);
- if (name) {
- LOGL(name, namelen, ptr);
- }
-
- req->tgtlen = NTOH__u32(tgtlen);
- if (tgt) {
- LOGL(tgt, tgtlen, ptr);
- }
- return 0;
-}
-
-
-int mds_unpack_req(char *buf, int len,
- struct ptlreq_hdr **hdr, union ptl_req *r)
-{
- struct mds_req *req;
- char *name, *tgt;
-
- if (len < sizeof(**hdr) + sizeof(*req)) {
- EXIT;
- return -EINVAL;
- }
-
- *hdr = (struct ptlreq_hdr *) (buf);
- req = (struct mds_req *) (buf + sizeof(**hdr));
- r->mds = req;
-
- req->namelen = NTOH__u32(req->namelen);
- req->tgtlen = NTOH__u32(req->tgtlen);
-
- if (len < sizeof(**hdr) + sizeof(*req) +
- size_round(req->namelen) + size_round(req->tgtlen) ) {
- EXIT;
- return -EINVAL;
- }
-
- if (req->namelen) {
- name = buf + sizeof(**hdr) + sizeof(*req);
- } else {
- name = NULL;
- }
-
- if (req->tgtlen) {
- tgt = buf + sizeof(**hdr) + sizeof(*req) +
- size_round(req->namelen);
- } else {
- tgt = NULL;
- }
-
- EXIT;
- return 0;
-}
-
-void *mds_req_tgt(struct mds_req *req)
-{
- if (!req->tgtlen)
- return NULL;
- return (void *)((char *)req + sizeof(*req) +
- size_round(req->namelen));
-}
-
-void *mds_req_name(struct mds_req *req)
-{
- if (!req->namelen)
- return NULL;
- return (void *)((char *)req + sizeof(*req));
-}
-
-int mds_pack_rep(char *name, int namelen, char *tgt, int tgtlen,
- struct ptlrep_hdr **hdr, union ptl_rep *r,
- int *len, char **buf)
-{
- struct mds_rep *rep;
- char *ptr;
-
- *len = sizeof(**hdr) + size_round(namelen) + size_round(tgtlen) +
- sizeof(*rep);
-
- OBD_ALLOC(*buf, *len);
- if (!*buf) {
- EXIT;
- return -ENOMEM;
- }
-
- memset(*buf, 0, *len);
- *hdr = (struct ptlrep_hdr *)(*buf);
- rep = (struct mds_rep *)(*buf + sizeof(**hdr));
- r->mds = rep;
-
- ptr = *buf + sizeof(**hdr) + sizeof(*rep);
-
- (*hdr)->type = MDS_TYPE_REP;
-
- rep->namelen = NTOH__u32(namelen);
- if (name) {
- LOGL(name, namelen, ptr);
- }
-
- rep->tgtlen = NTOH__u32(tgtlen);
- if (tgt) {
- LOGL(tgt, tgtlen, ptr);
- }
- return 0;
-}
-
-int mds_unpack_rep(char *buf, int len,
- struct ptlrep_hdr **hdr, union ptl_rep *r)
-{
- struct mds_rep *rep;
- if (len < sizeof(**hdr)) {
- EXIT;
- return -EINVAL;
- }
- *hdr = (struct ptlrep_hdr *) (buf);
-
- if (len < sizeof(**hdr) + sizeof(*rep)) {
- EXIT;
- return -EINVAL;
- }
-
- rep = (struct mds_rep *) (buf + sizeof(**hdr));
- r->mds = rep;
- rep->namelen = NTOH__u32(rep->namelen);
- rep->tgtlen = NTOH__u32(rep->namelen);
-
- if (len < sizeof(**hdr) + sizeof(*rep)
- + size_round(rep->namelen) + size_round(rep->tgtlen) ) {
- EXIT;
- return -EINVAL;
- }
-
- EXIT;
- return 0;
-}
-
-void *mds_rep_name(struct mds_rep *rep)
-{
- if (!rep->namelen)
- return NULL;
- return (void *)((char *)rep + sizeof(*rep));
-}
-
-void *mds_rep_tgt(struct mds_rep *rep)
-{
- if (!rep->tgtlen)
- return NULL;
- return (void *)((char *)rep + sizeof(*rep) + size_round(rep->namelen));
-}
-
+++ /dev/null
-/*
- * Lustre Light Update Records
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * Copryright (C) 2002 Cluster File Systems, Inc.
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/locks.h>
-#include <linux/unistd.h>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <asm/uaccess.h>
-#include <linux/slab.h>
-#include <asm/segment.h>
-
-#define DEBUG_SUBSYSTEM S_MDS
-
-#include <linux/obd_support.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
-#include <linux/lustre_light.h>
-
-/* packing of MDS records */
-void mds_create_pack(struct mds_rec_create *rec, struct inode *inode, const char *name, int namelen, __u32 mode, __u64 id, __u32 uid, __u32 gid, __u64 time, const char *tgt, int tgtlen)
-{
- char *tmp = (char *)rec + sizeof(*rec);
- /* XXX do something about time, uid, gid */
- rec->cr_reclen =
- HTON__u32(sizeof(*rec) + size_round0(namelen) +
- size_round0(tgtlen));
- rec->cr_opcode = HTON__u32(REINT_CREATE);
-
- ll_inode2fid(&rec->cr_fid, inode);
- rec->cr_mode = HTON__u32(mode);
- rec->cr_id = HTON__u64(id);
- rec->cr_uid = HTON__u32(uid);
- rec->cr_gid = HTON__u32(gid);
- rec->cr_time = HTON__u64(time);
- rec->cr_namelen = HTON__u32(namelen + 1); /* for terminating \0 */
- LOGL0(name, namelen, tmp);
- if (tgt) {
- rec->cr_tgtlen = HTON__u32(tgtlen + 1);
- LOGL0(tgt, tgtlen, tmp);
- }
-}
-
-
-void mds_setattr_pack(struct mds_rec_setattr *rec, struct inode *inode, struct iattr *iattr)
-{
- rec->sa_reclen = HTON__u32(sizeof(*rec));
- rec->sa_opcode = HTON__u32(REINT_SETATTR);
-
- ll_inode2fid(&rec->sa_fid, inode);
- rec->sa_valid = HTON__u32(iattr->ia_valid);
- rec->sa_mode = HTON__u32(iattr->ia_mode);
- rec->sa_uid = HTON__u32(iattr->ia_uid);
- rec->sa_gid = HTON__u32(iattr->ia_gid);
- rec->sa_size = HTON__u64(iattr->ia_size);
- rec->sa_atime = HTON__u64(iattr->ia_atime);
- rec->sa_mtime = HTON__u64(iattr->ia_mtime);
- rec->sa_ctime = HTON__u64(iattr->ia_ctime);
- rec->sa_attr_flags = HTON__u32(iattr->ia_attr_flags);
-}
-
-void mds_unlink_pack(struct mds_rec_unlink *rec,
- struct inode *inode, const char *name, int namelen)
-{
- char *tmp = (char *)rec + sizeof(*rec);
-
- rec->ul_reclen = HTON__u32(sizeof(*rec)) + size_round0(namelen);
- rec->ul_opcode = HTON__u32(REINT_UNLINK);
-
- ll_inode2fid(&rec->ul_fid1, inode);
- rec->ul_namelen = HTON__u32(namelen + 1); /* for terminating \0 */
- LOGL0(name, namelen, tmp);
-}
-
-void mds_link_pack(struct mds_rec_link *rec,
- struct inode *inode, struct inode *dir,
- const char *name, int namelen)
-{
- char *tmp = (char *)rec + sizeof(*rec);
- rec->lk_reclen = HTON__u32(sizeof(*rec)) + size_round0(namelen);
- rec->lk_opcode = HTON__u32(REINT_LINK);
-
- ll_inode2fid(&rec->lk_fid1, inode);
- ll_inode2fid(&rec->lk_fid2, dir);
- rec->lk_namelen = HTON__u32(namelen + 1); /* for terminating \0 */
- LOGL0(name, namelen, tmp);
-}
-
-void mds_rename_pack(struct mds_rec_rename *rec, struct inode *srcdir, struct inode *tgtdir, const char *name, int namelen, const char *tgt, int tgtlen)
-{
- char *tmp = (char *)rec + sizeof(*rec);
- /* XXX do something about time, uid, gid */
- rec->rn_reclen =
- HTON__u32(sizeof(*rec) + size_round0(namelen) +
- size_round0(tgtlen));
- rec->rn_opcode = HTON__u32(REINT_RENAME);
-
- ll_inode2fid(&rec->rn_fid1, srcdir);
- ll_inode2fid(&rec->rn_fid2, tgtdir);
- rec->rn_namelen = HTON__u32(namelen + 1); /* for terminating \0 */
- LOGL0(name, namelen, tmp);
- if (tgt) {
- rec->rn_tgtlen = HTON__u32(tgtlen + 1);
- LOGL0(tgt, tgtlen, tmp);
- }
-}
-
-/* unpacking */
-
-static int mds_update_hdr_unpack(char *buf, int len, struct mds_update_record *r)
-{
- struct mds_update_record_hdr *hdr = (struct mds_update_record_hdr *)buf;
-
- r->ur_reclen = NTOH__u32(hdr->ur_reclen);
- if (len < sizeof(*hdr) || len != r->ur_reclen) {
- CERROR("invalid buffer length\n");
- return -EFAULT;
- }
- r->ur_opcode = NTOH__u32(hdr->ur_opcode);
- return 0;
-}
-
-static int mds_setattr_unpack(char *buf, int len, struct mds_update_record *r)
-{
-
- struct iattr *attr = &r->ur_iattr;
- struct mds_rec_setattr *rec = (struct mds_rec_setattr *)buf;
-
- if (len < sizeof(*rec)) {
- CERROR("invalid buffer length\n");
- return -EFAULT;
- }
-
- r->ur_fid1 = &rec->sa_fid;
- attr->ia_valid = NTOH__u32(rec->sa_valid);
- attr->ia_mode = NTOH__u32(rec->sa_mode);
- attr->ia_uid = NTOH__u32(rec->sa_uid);
- attr->ia_gid = NTOH__u32(rec->sa_gid);
- attr->ia_size = NTOH__u64(rec->sa_size);
- attr->ia_atime = NTOH__u64(rec->sa_atime);
- attr->ia_mtime = NTOH__u64(rec->sa_mtime);
- attr->ia_ctime = NTOH__u64(rec->sa_ctime);
- attr->ia_attr_flags = NTOH__u32(rec->sa_attr_flags);
- return 0;
-}
-
-static int mds_create_unpack(char *buf, int len, struct mds_update_record *r)
-{
- struct mds_rec_create *rec = (struct mds_rec_create *)buf;
- char *ptr, *end;
-
- if (len < sizeof(*rec)) {
- CERROR("invalid buffer length\n");
- return -EFAULT;
- }
-
- ptr = (char *)rec + sizeof(*rec);
- end = ptr + len - sizeof(*rec);
-
- r->ur_fid1 = &rec->cr_fid;
- r->ur_mode = NTOH__u32(rec->cr_mode);
- r->ur_id = NTOH__u64(rec->cr_id);
- r->ur_uid = NTOH__u32(rec->cr_uid);
- r->ur_gid = NTOH__u32(rec->cr_gid);
- r->ur_time = NTOH__u64(rec->cr_time);
- r->ur_namelen = NTOH__u32(rec->cr_namelen);
- r->ur_tgtlen = NTOH__u32(rec->cr_tgtlen);
-
- UNLOGL0(r->ur_name, char, r->ur_namelen, ptr, end);
- UNLOGL0(r->ur_tgt, char, r->ur_tgtlen, ptr, end);
- return 0;
-}
-
-static int mds_link_unpack(char *buf, int len, struct mds_update_record *r)
-{
- struct mds_rec_link *rec = (struct mds_rec_link *)buf;
- char *ptr, *end;
-
- if (len < sizeof(*rec)) {
- CERROR("invalid buffer length\n");
- return -EFAULT;
- }
-
- ptr = (char *)rec + sizeof(*rec);
- end = ptr + len - sizeof(*rec);
-
- r->ur_fid1 = &rec->lk_fid1;
- r->ur_fid2 = &rec->lk_fid2;
- r->ur_namelen = NTOH__u32(rec->lk_namelen);
- UNLOGL0(r->ur_name, char, r->ur_namelen, ptr, end);
- return 0;
-}
-
-
-static int mds_unlink_unpack(char *buf, int len, struct mds_update_record *r)
-{
- struct mds_rec_unlink *rec = (struct mds_rec_unlink *)buf;
- char *ptr, *end;
- ENTRY;
-
- if (len < sizeof(*rec)) {
- CERROR("invalid buffer length\n");
- return -EFAULT;
- }
-
- ptr = (char *)rec + sizeof(*rec);
- end = ptr + len - sizeof(*rec);
-
- r->ur_fid1 = &rec->ul_fid1;
- r->ur_namelen = NTOH__u32(rec->ul_namelen);
- UNLOGL0(r->ur_name, char, r->ur_namelen, ptr, end);
- EXIT;
- return 0;
-}
-
-static int mds_rename_unpack(char *buf, int len, struct mds_update_record *r)
-{
- struct mds_rec_rename *rec = (struct mds_rec_rename *)buf;
- char *ptr, *end;
-
- if (len < sizeof(*rec)) {
- CERROR("invalid buffer length\n");
- return -EFAULT;
- }
-
- ptr = (char *)rec + sizeof(*rec);
- end = ptr + len - sizeof(*rec);
-
- r->ur_fid1 = &rec->rn_fid1;
- r->ur_fid2 = &rec->rn_fid2;
- r->ur_namelen = NTOH__u32(rec->rn_namelen);
- r->ur_tgtlen = NTOH__u32(rec->rn_tgtlen);
-
- UNLOGL0(r->ur_name, char, r->ur_namelen, ptr, end);
- UNLOGL0(r->ur_tgt, char, r->ur_tgtlen, ptr, end);
- return 0;
-}
-
-typedef int (*update_unpacker)(char *, int , struct mds_update_record *);
-
-static update_unpacker mds_unpackers[REINT_MAX + 1] = {
- [REINT_SETATTR] mds_setattr_unpack,
- [REINT_CREATE] mds_create_unpack,
- [REINT_LINK] mds_link_unpack,
- [REINT_UNLINK] mds_unlink_unpack,
- [REINT_RENAME] mds_rename_unpack,
-};
-
-int mds_update_unpack(char *buf, int len, struct mds_update_record *r)
-{
- int rc;
- ENTRY;
-
- rc = mds_update_hdr_unpack(buf, len, r);
-
- if (rc) {
- EXIT;
- return -EFAULT;
- }
-
- if ( r->ur_opcode<0 || r->ur_opcode > REINT_MAX) {
- EXIT;
- return EFAULT;
- }
-
- rc = mds_unpackers[r->ur_opcode](buf, len, r);
- EXIT;
- return rc;
-}
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
- *
- * This file is part of Lustre, http://www.lustre.org.
- *
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * (Un)packing of OST requests
- *
- */
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/sched.h>
-#include <linux/lp.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/fcntl.h>
-#include <linux/delay.h>
-#include <linux/skbuff.h>
-#include <linux/proc_fs.h>
-#include <linux/fs.h>
-#include <linux/poll.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <asm/io.h>
-#include <asm/segment.h>
-#include <asm/system.h>
-#include <asm/poll.h>
-#include <asm/uaccess.h>
-
-#define DEBUG_SUBSYSTEM S_OST
-
-#include <linux/obd_support.h>
-#include <linux/obd_class.h>
-#include <linux/obd_ost.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
-
-int ost_pack_req(char *buf1, int buflen1, char *buf2, int buflen2,
- struct ptlreq_hdr **hdr, struct ost_req **req,
- int *len, char **buf)
-{
- char *ptr;
-
- *len = sizeof(**hdr) + size_round(buflen1) + size_round(buflen2) +
- sizeof(**req);
-
- OBD_ALLOC(*buf, *len);
- if (!*buf) {
- EXIT;
- return -ENOMEM;
- }
-
- memset(*buf, 0, *len);
- *hdr = (struct ptlreq_hdr *)(*buf);
- *req = (struct ost_req *)(*buf + sizeof(**hdr));
-
- ptr = *buf + sizeof(**hdr) + sizeof(**req);
-
- (*hdr)->type = OST_TYPE_REQ;
-
- (*req)->buflen1 = NTOH__u32(buflen1);
- if (buf1) {
- LOGL(buf1, buflen1, ptr);
- }
-
- (*req)->buflen2 = NTOH__u32(buflen2);
- if (buf2) {
- LOGL(buf2, buflen2, ptr);
- }
- return 0;
-}
-
-int ost_unpack_req(char *buf, int len,
- struct ptlreq_hdr **hdr, struct ost_req **req)
-{
-
- if (len < sizeof(**hdr) + sizeof(**req)) {
- EXIT;
- return -EINVAL;
- }
-
- *hdr = (struct ptlreq_hdr *) (buf);
- *req = (struct ost_req *) (buf + sizeof(**hdr));
-
- (*req)->buflen1 = NTOH__u32((*req)->buflen1);
- (*req)->buflen2 = NTOH__u32((*req)->buflen2);
-
- if (len < sizeof(**hdr) + sizeof(**req) +
- size_round((*req)->buflen1) + size_round((*req)->buflen2) ) {
- EXIT;
- return -EINVAL;
- }
-
- EXIT;
- return 0;
-}
-
-
-void *ost_req_buf1(struct ost_req *req)
-{
- if (!req->buflen1)
- return NULL;
- return (void *)((char *)req + sizeof(*req));
-}
-
-void *ost_req_buf2(struct ost_req *req)
-{
- if (!req->buflen2)
- return NULL;
- return (void *)((char *)req + sizeof(*req) +
- size_round(req->buflen1));
-}
-
-int ost_pack_rep(void *buf1, __u32 buflen1, void *buf2, __u32 buflen2,
- struct ptlrep_hdr **hdr, struct ost_rep **rep,
- int *len, char **buf)
-{
- char *ptr;
-
- *len = sizeof(**hdr) + size_round(buflen1) + size_round(buflen2) +
- sizeof(**rep);
-
- OBD_ALLOC(*buf, *len);
- if (!*buf) {
- EXIT;
- return -ENOMEM;
- }
-
- memset(*buf, 0, *len);
- *hdr = (struct ptlrep_hdr *)(*buf);
- *rep = (struct ost_rep *)(*buf + sizeof(**hdr));
- ptr = *buf + sizeof(**hdr) + sizeof(**rep);
-
- (*rep)->buflen1 = NTOH__u32(buflen1);
- if (buf1) {
- LOGL(buf1, buflen1, ptr);
- }
-
- (*rep)->buflen2 = NTOH__u32(buflen2);
- if (buf2) {
- LOGL(buf2, buflen2, ptr);
- }
- return 0;
-}
-
-
-int ost_unpack_rep(char *buf, int len,
- struct ptlrep_hdr **hdr, struct ost_rep **rep)
-{
- if (len < sizeof(**hdr) + sizeof(**rep)) {
- EXIT;
- return -EINVAL;
- }
-
- *hdr = (struct ptlrep_hdr *) (buf);
- *rep = (struct ost_rep *) (buf + sizeof(**hdr));
-
- (*rep)->buflen1 = NTOH__u32((*rep)->buflen1);
- (*rep)->buflen2 = NTOH__u32((*rep)->buflen2);
-
- if (len < sizeof(**hdr) + sizeof(**rep) +
- size_round((*rep)->buflen1) + size_round((*rep)->buflen2) ) {
- EXIT;
- return -EINVAL;
- }
-
- EXIT;
- return 0;
-}
-
-void *ost_rep_buf1(struct ost_rep *rep)
-{
- if (!rep->buflen1)
- return NULL;
- return (void *)((char *)rep + sizeof(*rep));
-}
-
-void *ost_rep_buf2(struct ost_rep *rep)
-{
- if (!rep->buflen2)
- return NULL;
- return (void *)((char *)rep + sizeof(*rep) +
- size_round(rep->buflen1));
-}
-
-void ost_pack_ioo(void **tmp, struct obdo *oa, int bufcnt)
-{
- struct obd_ioobj *ioo = *tmp;
- char *c = *tmp;
-
- ioo->ioo_id = NTOH__u64(oa->o_id);
- ioo->ioo_gr = NTOH__u64(oa->o_gr);
- ioo->ioo_type = NTOH__u64(oa->o_mode);
- ioo->ioo_bufcnt = NTOH__u32(bufcnt);
- *tmp = c + sizeof(*ioo);
-}
-
-void ost_unpack_ioo(void **tmp, struct obd_ioobj **ioop)
-{
- char *c = *tmp;
- struct obd_ioobj *ioo = *tmp;
- *ioop = *tmp;
-
- ioo->ioo_id = NTOH__u64(ioo->ioo_id);
- ioo->ioo_gr = NTOH__u64(ioo->ioo_gr);
- ioo->ioo_type = NTOH__u64(ioo->ioo_type);
- ioo->ioo_bufcnt = NTOH__u32(ioo->ioo_bufcnt);
- *tmp = c + sizeof(*ioo);
-}
-
-void ost_pack_niobuf(void **tmp, void *addr, __u64 offset, __u32 len,
- __u32 flags)
-{
- struct niobuf *ioo = *tmp;
- char *c = *tmp;
-
- ioo->addr = NTOH__u64((__u64)(unsigned long)addr);
- ioo->offset = NTOH__u64(offset);
- ioo->len = NTOH__u32(len);
- ioo->flags = NTOH__u32(flags);
- *tmp = c + sizeof(*ioo);
-}
-
-void ost_unpack_niobuf(void **tmp, struct niobuf **nbp)
-{
- char *c = *tmp;
- struct niobuf *nb = *tmp;
-
- *nbp = *tmp;
-
- nb->addr = NTOH__u64(nb->addr);
- nb->offset = NTOH__u64(nb->offset);
- nb->len = NTOH__u32(nb->len);
- nb->flags = NTOH__u32(nb->flags);
-
- *tmp = c + sizeof(*nb);
-}
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
- *
- * This file is part of Lustre, http://www.sf.net/projects/lustre/
- *
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/locks.h>
-#include <linux/unistd.h>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <asm/uaccess.h>
-#include <asm/segment.h>
-#include <linux/mm.h>
-#include <linux/pagemap.h>
-#include <linux/smp_lock.h>
-
-#define DEBUG_SUBSYSTEM S_OST
-
-#include <linux/obd_support.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
-#include <linux/lustre_mds.h>
-#include <linux/lustre_light.h>
-
-/*
- * Remove page from dirty list
- */
-static void __set_page_clean(struct page *page)
-{
- struct address_space *mapping = page->mapping;
- struct inode *inode;
-
- if (!mapping)
- return;
-
- spin_lock(&pagecache_lock);
- list_del(&page->list);
- list_add(&page->list, &mapping->clean_pages);
-
- inode = mapping->host;
- if (list_empty(&mapping->dirty_pages)) {
- CDEBUG(D_INODE, "inode clean\n");
- inode->i_state &= ~I_DIRTY_PAGES;
- }
- spin_unlock(&pagecache_lock);
- EXIT;
-}
-
-inline void set_page_clean(struct page *page)
-{
- if (PageDirty(page)) {
- ClearPageDirty(page);
- __set_page_clean(page);
- }
-}
-
-inline void lustre_put_page(struct page *page)
-{
- kunmap(page);
- page_cache_release(page);
-}
-
-struct page * lustre_get_page(struct inode *dir, unsigned long n)
-{
- struct address_space *mapping = dir->i_mapping;
- struct page *page = read_cache_page(mapping, n,
- (filler_t*)mapping->a_ops->readpage, NULL);
- if (!IS_ERR(page)) {
- wait_on_page(page);
- kmap(page);
- if (!Page_Uptodate(page))
- goto fail;
- if (PageError(page))
- goto fail;
- }
- return page;
-
-fail:
- lustre_put_page(page);
- return ERR_PTR(-EIO);
-}
-
-int lustre_prepare_page(unsigned from, unsigned to, struct page *page)
-{
- int err;
-
- lock_page(page);
- err = page->mapping->a_ops->prepare_write(NULL, page, from, to);
- if (err) {
- CERROR("page index %ld from %d to %d err %d\n",
- page->index, from, to, err);
- }
- return err;
-}
-
-int lustre_commit_page(struct page *page, unsigned from, unsigned to)
-{
- struct inode *dir = page->mapping->host;
- int err = 0;
-
- SetPageUptodate(page);
- set_page_clean(page);
-
- page->mapping->a_ops->commit_write(NULL, page, from, to);
- if (IS_SYNC(dir))
- err = waitfor_one_page(page);
- UnlockPage(page);
- lustre_put_page(page);
- return err;
-}
+++ /dev/null
-.Xrefs
-config.log
-config.status
-configure
-Makefile
-Makefile.in
-.deps
-TAGS
+++ /dev/null
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-DEFS:=
-
-MODULE = llight
-modulefs_DATA = llight.o
-EXTRA_PROGRAMS = llight
-
-page.c:
- -ln -s ../lib/page.c
-
-
-llight_SOURCES = page.c super.c rw.c file.c dir.c sysctl.c namei.c symlink.c
-
-include $(top_srcdir)/Rules
+++ /dev/null
-/*
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- * from
- *
- * linux/fs/minix/dir.c
- * linux/fs/ext2/dir.c
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- *
- * ext2 directory handling functions
- *
- * Big-endian to little-endian byte-swapping/bitmaps by
- * David S. Miller (davem@caip.rutgers.edu), 1995
- *
- * All code that works with directory layout had been switched to pagecache
- * and moved here. AV
- *
- * Adapted for Lustre Light
- * Copyright (C) 2002, Cluster File Systems, Inc.
- *
- */
-
-#include <linux/fs.h>
-#include <linux/ext2_fs.h>
-#include <linux/pagemap.h>
-#include <linux/mm.h>
-#include <linux/locks.h>
-#include <asm/uaccess.h>
-
-#define DEBUG_SUBSYSTEM S_LLIGHT
-
-#include <linux/obd_support.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
-#include <linux/lustre_mds.h>
-#include <linux/lustre_light.h>
-
-typedef struct ext2_dir_entry_2 ext2_dirent;
-
-#define PageChecked(page) test_bit(PG_checked, &(page)->flags)
-#define SetPageChecked(page) set_bit(PG_checked, &(page)->flags)
-
-
-static int ll_dir_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
-{
- return 0;
-}
-
-/* returns the page unlocked, but with a reference */
-static int ll_dir_readpage(struct file *file, struct page *page)
-{
- struct inode *inode = page->mapping->host;
- struct ll_sb_info *sbi = ll_i2sbi(inode);
- char *buf;
- __u64 offset;
- int rc = 0;
- struct ptlrep_hdr *hdr;
-
- ENTRY;
-
- if ( ((inode->i_size + PAGE_CACHE_SIZE -1)>>PAGE_SHIFT)
- <= page->index) {
- memset(kmap(page), 0, PAGE_CACHE_SIZE);
- kunmap(page);
- goto readpage_out;
- }
-
- if (Page_Uptodate(page)) {
- EXIT;
- goto readpage_out;
- }
-
- offset = page->index << PAGE_SHIFT;
- buf = kmap(page);
- rc = mdc_readpage(&sbi->ll_mds_client, inode->i_ino, S_IFDIR, offset,
- buf, NULL, &hdr);
- kunmap(page);
- if ( rc ) {
- EXIT;
- goto readpage_out;
- }
-
- if ((rc = hdr->status)) {
- EXIT;
- goto readpage_out;
- }
-
- /* PDEBUG(page, "READ"); */
-
- SetPageUptodate(page);
- readpage_out:
- obd_unlock_page(page);
- EXIT;
- return rc;
-} /* ll_dir_readpage */
-
-struct address_space_operations ll_dir_aops = {
- readpage: ll_dir_readpage,
- prepare_write: ll_dir_prepare_write
-};
-
-int waitfor_one_page(struct page *page)
-{
- int error = 0;
- struct buffer_head *bh, *head = page->buffers;
-
- bh = head;
- do {
- wait_on_buffer(bh);
- if (buffer_req(bh) && !buffer_uptodate(bh))
- error = -EIO;
- } while ((bh = bh->b_this_page) != head);
- return error;
-}
-
-/*
- * ext2 uses block-sized chunks. Arguably, sector-sized ones would be
- * more robust, but we have what we have
- */
-static inline unsigned ext2_chunk_size(struct inode *inode)
-{
- //return inode->i_sb->s_blocksize;
- return PAGE_SIZE;
-}
-
-static inline void ext2_put_page(struct page *page)
-{
- kunmap(page);
- page_cache_release(page);
-}
-
-static inline unsigned long dir_pages(struct inode *inode)
-{
- return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
-}
-
-extern void set_page_clean(struct page *page);
-
-static int ext2_commit_chunk(struct page *page, unsigned from, unsigned to)
-{
- struct inode *dir = page->mapping->host;
- int err = 0;
-
- dir->i_version = ++event;
- dir->i_size = (page->index << PAGE_CACHE_SHIFT) + to;
- SetPageUptodate(page);
- set_page_clean(page);
-
- //page->mapping->a_ops->commit_write(NULL, page, from, to);
- //if (IS_SYNC(dir))
- // err = waitfor_one_page(page);
- return err;
-}
-
-static void ext2_check_page(struct page *page)
-{
- struct inode *dir = page->mapping->host;
- unsigned chunk_size = ext2_chunk_size(dir);
- char *kaddr = page_address(page);
- // u32 max_inumber = le32_to_cpu(sb->u.ext2_sb.s_es->s_inodes_count);
- unsigned offs, rec_len;
- unsigned limit = PAGE_CACHE_SIZE;
- ext2_dirent *p;
- char *error;
-
- if ((dir->i_size >> PAGE_CACHE_SHIFT) == page->index) {
- limit = dir->i_size & ~PAGE_CACHE_MASK;
- if (limit & (chunk_size - 1)) {
- CERROR("limit %d dir size %lld index %ld\n",
- limit, dir->i_size, page->index);
- goto Ebadsize;
- }
- for (offs = limit; offs<PAGE_CACHE_SIZE; offs += chunk_size) {
- ext2_dirent *p = (ext2_dirent*)(kaddr + offs);
- p->rec_len = cpu_to_le16(chunk_size);
- }
- if (!limit)
- goto out;
- }
- for (offs = 0; offs <= limit - EXT2_DIR_REC_LEN(1); offs += rec_len) {
- p = (ext2_dirent *)(kaddr + offs);
- rec_len = le16_to_cpu(p->rec_len);
-
- if (rec_len < EXT2_DIR_REC_LEN(1))
- goto Eshort;
- if (rec_len & 3)
- goto Ealign;
- if (rec_len < EXT2_DIR_REC_LEN(p->name_len))
- goto Enamelen;
- if (((offs + rec_len - 1) ^ offs) & ~(chunk_size-1))
- goto Espan;
- // if (le32_to_cpu(p->inode) > max_inumber)
- //goto Einumber;
- }
- if (offs != limit)
- goto Eend;
-out:
- SetPageChecked(page);
- return;
-
- /* Too bad, we had an error */
-
-Ebadsize:
- CERROR("ext2_check_page"
- "size of directory #%lu is not a multiple of chunk size\n",
- dir->i_ino
- );
- goto fail;
-Eshort:
- error = "rec_len is smaller than minimal";
- goto bad_entry;
-Ealign:
- error = "unaligned directory entry";
- goto bad_entry;
-Enamelen:
- error = "rec_len is too small for name_len";
- goto bad_entry;
-Espan:
- error = "directory entry across blocks";
- goto bad_entry;
- //Einumber:
- // error = "inode out of bounds";
-bad_entry:
- CERROR("ext2_check_page: bad entry in directory #%lu: %s - "
- "offset=%lu, inode=%lu, rec_len=%d, name_len=%d",
- dir->i_ino, error, (page->index<<PAGE_CACHE_SHIFT)+offs,
- (unsigned long) le32_to_cpu(p->inode),
- rec_len, p->name_len);
- goto fail;
-Eend:
- p = (ext2_dirent *)(kaddr + offs);
- CERROR("ext2_check_page"
- "entry in directory #%lu spans the page boundary"
- "offset=%lu, inode=%lu",
- dir->i_ino, (page->index<<PAGE_CACHE_SHIFT)+offs,
- (unsigned long) le32_to_cpu(p->inode));
-fail:
- SetPageChecked(page);
- SetPageError(page);
-}
-
-static struct page * ext2_get_page(struct inode *dir, unsigned long n)
-{
- struct address_space *mapping = dir->i_mapping;
- struct page *page = read_cache_page(mapping, n,
- (filler_t*)mapping->a_ops->readpage, NULL);
- if (!IS_ERR(page)) {
- wait_on_page(page);
- kmap(page);
- if (!Page_Uptodate(page))
- goto fail;
- if (!PageChecked(page))
- ext2_check_page(page);
- if (PageError(page))
- goto fail;
- }
- return page;
-
-fail:
- ext2_put_page(page);
- return ERR_PTR(-EIO);
-}
-
-/*
- * NOTE! unlike strncmp, ext2_match returns 1 for success, 0 for failure.
- *
- * len <= EXT2_NAME_LEN and de != NULL are guaranteed by caller.
- */
-static inline int ext2_match (int len, const char * const name,
- struct ext2_dir_entry_2 * de)
-{
- if (len != de->name_len)
- return 0;
- if (!de->inode)
- return 0;
- return !memcmp(name, de->name, len);
-}
-
-/*
- * p is at least 6 bytes before the end of page
- */
-static inline ext2_dirent *ext2_next_entry(ext2_dirent *p)
-{
- return (ext2_dirent *)((char*)p + le16_to_cpu(p->rec_len));
-}
-
-static inline unsigned
-ext2_validate_entry(char *base, unsigned offset, unsigned mask)
-{
- ext2_dirent *de = (ext2_dirent*)(base + offset);
- ext2_dirent *p = (ext2_dirent*)(base + (offset&mask));
- while ((char*)p < (char*)de)
- p = ext2_next_entry(p);
- return (char *)p - base;
-}
-
-static unsigned char ext2_filetype_table[EXT2_FT_MAX] = {
- [EXT2_FT_UNKNOWN] DT_UNKNOWN,
- [EXT2_FT_REG_FILE] DT_REG,
- [EXT2_FT_DIR] DT_DIR,
- [EXT2_FT_CHRDEV] DT_CHR,
- [EXT2_FT_BLKDEV] DT_BLK,
- [EXT2_FT_FIFO] DT_FIFO,
- [EXT2_FT_SOCK] DT_SOCK,
- [EXT2_FT_SYMLINK] DT_LNK,
-};
-
-static unsigned int ll_dt2fmt[DT_WHT + 1] = {
- [EXT2_FT_UNKNOWN] 0,
- [EXT2_FT_REG_FILE] S_IFREG,
- [EXT2_FT_DIR] S_IFDIR,
- [EXT2_FT_CHRDEV] S_IFCHR,
- [EXT2_FT_BLKDEV] S_IFBLK,
- [EXT2_FT_FIFO] S_IFIFO,
- [EXT2_FT_SOCK] S_IFSOCK,
- [EXT2_FT_SYMLINK] S_IFLNK
-};
-
-#define S_SHIFT 12
-static unsigned char ext2_type_by_mode[S_IFMT >> S_SHIFT] = {
- [S_IFREG >> S_SHIFT] EXT2_FT_REG_FILE,
- [S_IFDIR >> S_SHIFT] EXT2_FT_DIR,
- [S_IFCHR >> S_SHIFT] EXT2_FT_CHRDEV,
- [S_IFBLK >> S_SHIFT] EXT2_FT_BLKDEV,
- [S_IFIFO >> S_SHIFT] EXT2_FT_FIFO,
- [S_IFSOCK >> S_SHIFT] EXT2_FT_SOCK,
- [S_IFLNK >> S_SHIFT] EXT2_FT_SYMLINK,
-};
-
-static inline void ext2_set_de_type(ext2_dirent *de, struct inode *inode)
-{
- mode_t mode = inode->i_mode;
- de->file_type = ext2_type_by_mode[(mode & S_IFMT)>>S_SHIFT];
-}
-
-int
-new_ll_readdir (struct file * filp, void * dirent, filldir_t filldir)
-{
- loff_t pos = filp->f_pos;
- struct inode *inode = filp->f_dentry->d_inode;
- // XXX struct super_block *sb = inode->i_sb;
- unsigned offset = pos & ~PAGE_CACHE_MASK;
- unsigned long n = pos >> PAGE_CACHE_SHIFT;
- unsigned long npages = dir_pages(inode);
- unsigned chunk_mask = ~(ext2_chunk_size(inode)-1);
- unsigned char *types = NULL;
- int need_revalidate = (filp->f_version != inode->i_version);
-
- if (pos > inode->i_size - EXT2_DIR_REC_LEN(1))
- goto done;
-
- types = ext2_filetype_table;
-
- for ( ; n < npages; n++, offset = 0) {
- char *kaddr, *limit;
- ext2_dirent *de;
- struct page *page = ext2_get_page(inode, n);
-
- if (IS_ERR(page))
- continue;
- kaddr = page_address(page);
- if (need_revalidate) {
- offset = ext2_validate_entry(kaddr, offset, chunk_mask);
- need_revalidate = 0;
- }
- de = (ext2_dirent *)(kaddr+offset);
- limit = kaddr + PAGE_CACHE_SIZE - EXT2_DIR_REC_LEN(1);
- for ( ;(char*)de <= limit; de = ext2_next_entry(de))
- if (de->inode) {
- int over;
- unsigned char d_type = DT_UNKNOWN;
-
- if (types && de->file_type < EXT2_FT_MAX)
- d_type = types[de->file_type];
-
- offset = (char *)de - kaddr;
- over = filldir(dirent, de->name, de->name_len,
- (n<<PAGE_CACHE_SHIFT) | offset,
- le32_to_cpu(de->inode), d_type);
- if (over) {
- ext2_put_page(page);
- goto done;
- }
- }
- ext2_put_page(page);
- }
-
-done:
- filp->f_pos = (n << PAGE_CACHE_SHIFT) | offset;
- filp->f_version = inode->i_version;
- UPDATE_ATIME(inode);
- return 0;
-}
-
-/*
- * ext2_find_entry()
- *
- * finds an entry in the specified directory with the wanted name. It
- * returns the page in which the entry was found, and the entry itself
- * (as a parameter - res_dir). Page is returned mapped and unlocked.
- * Entry is guaranteed to be valid.
- */
-struct ext2_dir_entry_2 * ext2_find_entry (struct inode * dir,
- struct dentry *dentry, struct page ** res_page)
-{
- const char *name = dentry->d_name.name;
- int namelen = dentry->d_name.len;
- unsigned reclen = EXT2_DIR_REC_LEN(namelen);
- unsigned long start, n;
- unsigned long npages = dir_pages(dir);
- struct page *page = NULL;
- ext2_dirent * de;
-
- /* OFFSET_CACHE */
- *res_page = NULL;
-
- // start = dir->u.ext2_i.i_dir_start_lookup;
- start = 0;
- if (start >= npages)
- start = 0;
- n = start;
- do {
- char *kaddr;
- page = ext2_get_page(dir, n);
- if (!IS_ERR(page)) {
- kaddr = page_address(page);
- de = (ext2_dirent *) kaddr;
- kaddr += PAGE_CACHE_SIZE - reclen;
- while ((char *) de <= kaddr) {
- if (ext2_match (namelen, name, de))
- goto found;
- de = ext2_next_entry(de);
- }
- ext2_put_page(page);
- }
- if (++n >= npages)
- n = 0;
- } while (n != start);
- return NULL;
-
-found:
- *res_page = page;
- // dir->u.ext2_i.i_dir_start_lookup = n;
- return de;
-}
-
-struct ext2_dir_entry_2 * ext2_dotdot (struct inode *dir, struct page **p)
-{
- struct page *page = ext2_get_page(dir, 0);
- ext2_dirent *de = NULL;
-
- if (!IS_ERR(page)) {
- de = ext2_next_entry((ext2_dirent *) page_address(page));
- *p = page;
- }
- return de;
-}
-
-ino_t ll_inode_by_name(struct inode * dir, struct dentry *dentry, int *type)
-{
- ino_t res = 0;
- struct ext2_dir_entry_2 * de;
- struct page *page;
-
- de = ext2_find_entry (dir, dentry, &page);
- if (de) {
- res = le32_to_cpu(de->inode);
- *type = ll_dt2fmt[de->file_type];
- kunmap(page);
- page_cache_release(page);
- }
- return res;
-}
-
-/* Releases the page */
-void ext2_set_link(struct inode *dir, struct ext2_dir_entry_2 *de,
- struct page *page, struct inode *inode)
-{
- unsigned from = (char *) de - (char *) page_address(page);
- unsigned to = from + le16_to_cpu(de->rec_len);
- int err;
-
- lock_page(page);
- err = page->mapping->a_ops->prepare_write(NULL, page, from, to);
- if (err)
- BUG();
- de->inode = cpu_to_le32(inode->i_ino);
- ext2_set_de_type (de, inode);
- dir->i_mtime = dir->i_ctime = CURRENT_TIME;
- err = ext2_commit_chunk(page, from, to);
- UnlockPage(page);
- ext2_put_page(page);
-}
-
-/*
- * Parent is locked.
- */
-int ll_add_link (struct dentry *dentry, struct inode *inode)
-{
- struct inode *dir = dentry->d_parent->d_inode;
- const char *name = dentry->d_name.name;
- int namelen = dentry->d_name.len;
- unsigned reclen = EXT2_DIR_REC_LEN(namelen);
- unsigned short rec_len, name_len;
- struct page *page = NULL;
- ext2_dirent * de;
- unsigned long npages = dir_pages(dir);
- unsigned long n;
- char *kaddr;
- unsigned from, to;
- int err;
-
- /* We take care of directory expansion in the same loop */
- for (n = 0; n <= npages; n++) {
- page = ext2_get_page(dir, n);
- err = PTR_ERR(page);
- if (IS_ERR(page))
- goto out;
- kaddr = page_address(page);
- de = (ext2_dirent *)kaddr;
- kaddr += PAGE_CACHE_SIZE - reclen;
- while ((char *)de <= kaddr) {
- err = -EEXIST;
- if (ext2_match (namelen, name, de))
- goto out_page;
- name_len = EXT2_DIR_REC_LEN(de->name_len);
- rec_len = le16_to_cpu(de->rec_len);
- if ( n==npages && rec_len == 0) {
- CERROR("Fatal dir behaviour\n");
- goto out_page;
- }
- if (!de->inode && rec_len >= reclen)
- goto got_it;
- if (rec_len >= name_len + reclen)
- goto got_it;
- de = (ext2_dirent *) ((char *) de + rec_len);
- }
- ext2_put_page(page);
- }
- BUG();
- return -EINVAL;
-
-got_it:
- from = (char*)de - (char*)page_address(page);
- to = from + rec_len;
- lock_page(page);
- err = page->mapping->a_ops->prepare_write(NULL, page, from, to);
- if (err)
- goto out_unlock;
- if (de->inode) {
- ext2_dirent *de1 = (ext2_dirent *) ((char *) de + name_len);
- de1->rec_len = cpu_to_le16(rec_len - name_len);
- de->rec_len = cpu_to_le16(name_len);
- de = de1;
- }
- de->name_len = namelen;
- memcpy (de->name, name, namelen);
- de->inode = cpu_to_le32(inode->i_ino);
- ext2_set_de_type (de, inode);
- CDEBUG(D_INODE, "type set to %o\n", de->file_type);
- dir->i_mtime = dir->i_ctime = CURRENT_TIME;
- err = ext2_commit_chunk(page, from, to);
-
- // change_inode happens with the commit_chunk
- /* XXX OFFSET_CACHE */
-
-out_unlock:
- UnlockPage(page);
-out_page:
- ext2_put_page(page);
-out:
- return err;
-}
-
-/*
- * ext2_delete_entry deletes a directory entry by merging it with the
- * previous entry. Page is up-to-date. Releases the page.
- */
-int ext2_delete_entry (struct ext2_dir_entry_2 * dir, struct page * page )
-{
- struct address_space *mapping = page->mapping;
- struct inode *inode = mapping->host;
- char *kaddr = page_address(page);
- unsigned from = ((char*)dir - kaddr) & ~(ext2_chunk_size(inode)-1);
- unsigned to = ((char*)dir - kaddr) + le16_to_cpu(dir->rec_len);
- ext2_dirent * pde = NULL;
- ext2_dirent * de = (ext2_dirent *) (kaddr + from);
- int err;
-
- while ((char*)de < (char*)dir) {
- pde = de;
- de = ext2_next_entry(de);
- }
- if (pde)
- from = (char*)pde - (char*)page_address(page);
- lock_page(page);
- err = mapping->a_ops->prepare_write(NULL, page, from, to);
- if (err)
- BUG();
- if (pde)
- pde->rec_len = cpu_to_le16(to-from);
- dir->inode = 0;
- inode->i_ctime = inode->i_mtime = CURRENT_TIME;
- err = ext2_commit_chunk(page, from, to);
- UnlockPage(page);
- ext2_put_page(page);
- return err;
-}
-
-/*
- * Set the first fragment of directory.
- */
-int ext2_make_empty(struct inode *inode, struct inode *parent)
-{
- struct address_space *mapping = inode->i_mapping;
- struct page *page = grab_cache_page(mapping, 0);
- unsigned chunk_size = ext2_chunk_size(inode);
- struct ext2_dir_entry_2 * de;
- char *base;
- int err;
- ENTRY;
-
- if (!page)
- return -ENOMEM;
- err = mapping->a_ops->prepare_write(NULL, page, 0, chunk_size);
- if (err)
- goto fail;
-
- base = page_address(page);
-
- de = (struct ext2_dir_entry_2 *) base;
- de->name_len = 1;
- de->rec_len = cpu_to_le16(EXT2_DIR_REC_LEN(1));
- memcpy (de->name, ".\0\0", 4);
- de->inode = cpu_to_le32(inode->i_ino);
- ext2_set_de_type (de, inode);
-
- de = (struct ext2_dir_entry_2 *) (base + EXT2_DIR_REC_LEN(1));
- de->name_len = 2;
- de->rec_len = cpu_to_le16(chunk_size - EXT2_DIR_REC_LEN(1));
- de->inode = cpu_to_le32(parent->i_ino);
- memcpy (de->name, "..\0", 4);
- ext2_set_de_type (de, inode);
-
- err = ext2_commit_chunk(page, 0, chunk_size);
-fail:
- UnlockPage(page);
- page_cache_release(page);
- ENTRY;
- return err;
-}
-
-/*
- * routine to check that the specified directory is empty (for rmdir)
- */
-int ext2_empty_dir (struct inode * inode)
-{
- struct page *page = NULL;
- unsigned long i, npages = dir_pages(inode);
-
- for (i = 0; i < npages; i++) {
- char *kaddr;
- ext2_dirent * de;
- page = ext2_get_page(inode, i);
-
- if (IS_ERR(page))
- continue;
-
- kaddr = page_address(page);
- de = (ext2_dirent *)kaddr;
- kaddr += PAGE_CACHE_SIZE-EXT2_DIR_REC_LEN(1);
-
- while ((char *)de <= kaddr) {
- if (de->inode != 0) {
- /* check for . and .. */
- if (de->name[0] != '.')
- goto not_empty;
- if (de->name_len > 2)
- goto not_empty;
- if (de->name_len < 2) {
- if (de->inode !=
- cpu_to_le32(inode->i_ino))
- goto not_empty;
- } else if (de->name[1] != '.')
- goto not_empty;
- }
- de = ext2_next_entry(de);
- }
- ext2_put_page(page);
- }
- return 1;
-
-not_empty:
- ext2_put_page(page);
- return 0;
-}
-
-struct file_operations ll_dir_operations = {
- read: generic_read_dir,
- readdir: new_ll_readdir
-};
+++ /dev/null
-/*
- * linux/fs/ext2/file.c
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- * from
- *
- * linux/fs/minix/file.c
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- *
- * ext2 fs regular file handling primitives
- *
- * 64-bit file support on 64-bit platforms by Jakub Jelinek
- * (jj@sunsite.ms.mff.cuni.cz)
- */
-
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/fcntl.h>
-#include <linux/sched.h>
-#include <linux/stat.h>
-#include <linux/locks.h>
-#include <linux/mm.h>
-#include <linux/pagemap.h>
-#include <linux/smp_lock.h>
-
-#define DEBUG_SUBSYSTEM S_LLIGHT
-
-#include <linux/obd_support.h>
-#include <linux/lustre_light.h>
-
-extern int ll_setattr(struct dentry *de, struct iattr *attr);
-
-static inline void ll_remove_suid(struct inode *inode)
-{
- unsigned int mode;
-
- /* set S_IGID if S_IXGRP is set, and always set S_ISUID */
- mode = (inode->i_mode & S_IXGRP)*(S_ISGID/S_IXGRP) | S_ISUID;
-
- /* was any of the uid bits set? */
- mode &= inode->i_mode;
- if (mode && !capable(CAP_FSETID)) {
- inode->i_mode &= ~mode;
- // XXX careful here - we cannot change the size
- }
-}
-
-/*
- * Write to a file (through the page cache).
- */
-static ssize_t
-ll_file_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
-{
- ssize_t retval;
- CDEBUG(D_INFO, "Writing inode %ld, %d bytes, offset %Ld\n",
- file->f_dentry->d_inode->i_ino, count, *ppos);
-
- retval = generic_file_write(file, buf, count, ppos);
- CDEBUG(D_INFO, "Wrote %d\n", retval);
-
- /* update mtime/ctime/atime here, NOT size */
- if (retval > 0) {
- struct iattr attr;
- attr.ia_valid = ATTR_MTIME | ATTR_CTIME | ATTR_ATIME;
- attr.ia_mtime = attr.ia_ctime = attr.ia_atime =
- CURRENT_TIME;
- ll_setattr(file->f_dentry, &attr);
- }
- EXIT;
- return retval;
-}
-
-
-/* XXX this does not need to do anything for data, it _does_ need to
- call setattr */
-int ll_fsync(struct file *file, struct dentry *dentry, int data)
-{
- return 0;
-}
-
-struct file_operations ll_file_operations = {
- read: generic_file_read,
- write: ll_file_write,
- mmap: generic_file_mmap,
- fsync: NULL
-};
-
-
-struct inode_operations ll_file_inode_operations = {
- truncate: ll_truncate,
- setattr: ll_setattr
-};
-
+++ /dev/null
-/*
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- * from
- *
- * linux/fs/ext2/namei.c
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- *
- * Big-endian to little-endian byte-swapping/bitmaps by
- * David S. Miller (davem@caip.rutgers.edu), 1995
- * Directory entry file type support and forward compatibility hooks
- * for B-tree directories by Theodore Ts'o (tytso@mit.edu), 1998
- *
- * Changes for use in OBDFS
- * Copyright (c) 1999, Seagate Technology Inc.
- * Copyright (C) 2001, Cluster File Systems, Inc.
- * Rewritten based on recent ext2 page cache use.
- *
- */
-
-#include <linux/fs.h>
-#include <linux/locks.h>
-#include <linux/quotaops.h>
-
-#define DEBUG_SUBSYSTEM S_LLIGHT
-
-#include <linux/obd_support.h>
-#include <linux/lustre_light.h>
-extern struct address_space_operations ll_aops;
-
-/* from super.c */
-extern void ll_change_inode(struct inode *inode);
-extern int ll_setattr(struct dentry *de, struct iattr *attr);
-
-/* from dir.c */
-extern int ll_add_link (struct dentry *dentry, struct inode *inode);
-ino_t ll_inode_by_name(struct inode * dir, struct dentry *dentry, int *typ);
-int ext2_make_empty(struct inode *inode, struct inode *parent);
-struct ext2_dir_entry_2 * ext2_find_entry (struct inode * dir,
- struct dentry *dentry, struct page ** res_page);
-int ext2_delete_entry (struct ext2_dir_entry_2 * dir, struct page * page );
-int ext2_empty_dir (struct inode * inode);
-struct ext2_dir_entry_2 * ext2_dotdot (struct inode *dir, struct page **p);
-void ext2_set_link(struct inode *dir, struct ext2_dir_entry_2 *de,
- struct page *page, struct inode *inode);
-
-/*
- * Couple of helper functions - make the code slightly cleaner.
- */
-static inline void ext2_inc_count(struct inode *inode)
-{
- inode->i_nlink++;
-}
-
-/* postpone the disk update until the inode really goes away */
-static inline void ext2_dec_count(struct inode *inode)
-{
- inode->i_nlink--;
-}
-
-static inline int ext2_add_nondir(struct dentry *dentry, struct inode *inode)
-{
- int err;
- err = ll_add_link(dentry, inode);
- if (!err) {
- d_instantiate(dentry, inode);
- return 0;
- }
- ext2_dec_count(inode);
- iput(inode);
- return err;
-}
-
-/* methods */
-static struct dentry *ll_lookup(struct inode * dir, struct dentry *dentry)
-{
- struct mds_rep *rep;
- struct ptlrep_hdr *hdr = NULL;
- struct inode * inode = NULL;
- struct ll_sb_info *sbi = ll_i2sbi(dir);
- int err;
- int type;
- ino_t ino;
-
- ENTRY;
- if (dentry->d_name.len > EXT2_NAME_LEN)
- return ERR_PTR(-ENAMETOOLONG);
-
- ino = ll_inode_by_name(dir, dentry, &type);
- if (!ino)
- goto negative;
-
- err = mdc_getattr(&sbi->ll_mds_client, ino, type,
- OBD_MD_FLNOTOBD|OBD_MD_FLBLOCKS, &rep, &hdr);
- if ( err ) {
- CERROR("obdo_fromid failed\n");
- EXIT;
- return ERR_PTR(-EACCES);
- }
-
- inode = iget4(dir->i_sb, ino, NULL, rep);
-
- /* FIXME: this is not the right way to get this size */
- OBD_FREE(hdr, sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep));
-
- if (!inode)
- return ERR_PTR(-EACCES);
-
- negative:
- d_add(dentry, inode);
- return NULL;
-}
-
-
-/*
- * NOTE! unlike strncmp, ext2_match returns 1 for success, 0 for failure.
- *
- * `len <= EXT2_NAME_LEN' is guaranteed by caller.
- * `de != NULL' is guaranteed by caller.
- */
-static inline int ext2_match (int len, const char * const name,
- struct ext2_dir_entry_2 * de)
-{
- if (len != de->name_len)
- return 0;
- if (!de->inode)
- return 0;
- return !memcmp(name, de->name, len);
-}
-
-static struct inode *ll_create_node(struct inode *dir, const char *name,
- int namelen, const char *tgt, int tgtlen,
- int mode, __u64 id)
-{
- struct inode *inode;
- struct mds_rep *rep;
- struct ptlrep_hdr *hdr;
- int err;
- time_t time = CURRENT_TIME;
- struct ll_sb_info *sbi = ll_i2sbi(dir);
-
- ENTRY;
-
- err = mdc_create(&sbi->ll_mds_client, dir, name, namelen, tgt, tgtlen,
- mode, id,
- current->uid, current->gid, time, &rep, &hdr);
- if (err) {
- EXIT;
- return ERR_PTR(err);
- }
- if ( hdr->status) {
- EXIT;
- return ERR_PTR(hdr->status);
- }
- rep->valid = OBD_MD_FLNOTOBD;
-
- rep->objid = id;
- rep->nlink = 1;
- rep->atime = rep->ctime = rep->mtime = time;
- rep->mode = mode;
- CDEBUG(D_INODE, "-- new_inode: objid %lld, ino %d, mode %o\n",
- rep->objid, rep->ino, rep->mode);
-
- inode = iget4(dir->i_sb, rep->ino, NULL, rep);
- if (IS_ERR(inode)) {
- CERROR("new_inode -fatal: %ld\n", PTR_ERR(inode));
- EXIT;
- return ERR_PTR(-EIO);
- }
-
- if (!list_empty(&inode->i_dentry)) {
- CERROR("new_inode -fatal: aliases %d, ct %d lnk %d\n",
- rep->ino, atomic_read(&inode->i_count),
- inode->i_nlink);
- iput(inode);
- EXIT;
- return ERR_PTR(-EIO);
- }
-
- EXIT;
- return inode;
-} /* ll_new_inode */
-
-int ll_mdc_unlink(struct inode *dir, const char *name, int len)
-{
- struct mds_rep *rep;
- struct ptlrep_hdr *hdr;
- int err;
- struct ll_sb_info *sbi = ll_i2sbi(dir);
-
- ENTRY;
-
- err = mdc_unlink(&sbi->ll_mds_client, dir, name, len, &rep, &hdr);
-
- if (err) {
- EXIT;
- return err;
- }
- if ( hdr->status) {
- EXIT;
- return hdr->status;
- }
-
- EXIT;
- return 0;
-}
-
-int ll_mdc_link(struct dentry *src, struct inode *dir,
- const char *name, int len)
-{
- struct mds_rep *rep;
- struct ptlrep_hdr *hdr;
- int err;
- struct ll_sb_info *sbi = ll_i2sbi(dir);
-
- ENTRY;
-
- err = mdc_link(&sbi->ll_mds_client, src, dir, name, len, &rep, &hdr);
-
- if (err) {
- EXIT;
- return err;
- }
- if ( hdr->status) {
- EXIT;
- return hdr->status;
- }
-
- EXIT;
- return 0;
-}
-
-int ll_mdc_rename(struct inode *src, struct inode *tgt,
- struct dentry *old, struct dentry *new)
-{
- struct mds_rep *rep;
- struct ptlrep_hdr *hdr;
- int err;
- struct ll_sb_info *sbi = ll_i2sbi(src);
-
- ENTRY;
-
- err = mdc_rename(&sbi->ll_mds_client, src, tgt,
- old->d_name.name, old->d_name.len,
- new->d_name.name, new->d_name.len,
- &rep, &hdr);
-
- if (err) {
- EXIT;
- return err;
- }
- if ( hdr->status) {
- EXIT;
- return hdr->status;
- }
-
- EXIT;
- return 0;
-}
-
-/*
- * By the time this is called, we already have created
- * the directory cache entry for the new file, but it
- * is so far negative - it has no inode.
- *
- * If the create succeeds, we fill in the inode information
- * with d_instantiate().
- */
-static int ll_create (struct inode * dir, struct dentry * dentry, int mode)
-{
- int err;
- struct obdo oa;
- struct inode * inode;
-
- memset(&oa, 0, sizeof(oa));
- oa.o_valid = OBD_MD_FLMODE;
- oa.o_mode = S_IFREG | 0600;
- err = obd_create(ll_i2obdconn(dir), &oa);
- if (err) {
- EXIT;
- return err;
- }
-
- mode = mode | S_IFREG;
- CDEBUG(D_DENTRY, "name %s mode %o\n", dentry->d_name.name, mode);
- inode = ll_create_node(dir, dentry->d_name.name, dentry->d_name.len,
- NULL, 0,
- mode, oa.o_id);
- err = PTR_ERR(inode);
- if (!IS_ERR(inode)) {
- // XXX clean up the object
- inode->i_op = &ll_file_inode_operations;
- inode->i_fop = &ll_file_operations;
- inode->i_mapping->a_ops = &ll_aops;
- err = ext2_add_nondir(dentry, inode);
- }
- EXIT;
- return err;
-} /* ll_create */
-
-
-static int ll_mknod (struct inode * dir, struct dentry *dentry, int mode, int rdev)
-{
- struct inode * inode = ll_create_node(dir, dentry->d_name.name,
- dentry->d_name.len, NULL, 0,
- mode, 0);
- int err = PTR_ERR(inode);
- if (!IS_ERR(inode)) {
- init_special_inode(inode, mode, rdev);
- err = ext2_add_nondir(dentry, inode);
- }
- return err;
-}
-
-static int ll_symlink (struct inode * dir, struct dentry * dentry,
- const char * symname)
-{
- int err = -ENAMETOOLONG;
- unsigned l = strlen(symname);
- struct inode * inode;
- struct ll_inode_info *oinfo;
-
- if (l > LL_INLINESZ)
- return err;
-
- inode = ll_create_node(dir, dentry->d_name.name,
- dentry->d_name.len, symname, l,
- S_IFLNK | S_IRWXUGO, 0);
- err = PTR_ERR(inode);
- if (IS_ERR(inode))
- return err;
-
- oinfo = ll_i2info(inode);
-
- inode->i_op = &ll_fast_symlink_inode_operations;
- memcpy(oinfo->lli_inline, symname, l);
- inode->i_size = l-1;
-
- err = ext2_add_nondir(dentry, inode);
-
- if (err) {
- ext2_dec_count(inode);
- iput (inode);
- }
- return err;
-}
-
-static int ll_link (struct dentry * old_dentry, struct inode * dir,
- struct dentry *dentry)
-{
- int err;
- struct inode *inode = old_dentry->d_inode;
-
- if (S_ISDIR(inode->i_mode))
- return -EPERM;
-
- if (inode->i_nlink >= EXT2_LINK_MAX)
- return -EMLINK;
-
- err = ll_mdc_link(old_dentry, dir,
- dentry->d_name.name, dentry->d_name.len);
- if (err) {
- EXIT;
- return err;
- }
-
- inode->i_ctime = CURRENT_TIME;
- ext2_inc_count(inode);
- atomic_inc(&inode->i_count);
-
- return ext2_add_nondir(dentry, inode);
-}
-
-
-static int ll_mkdir(struct inode * dir, struct dentry * dentry, int mode)
-{
- struct inode * inode;
- int err = -EMLINK;
- ENTRY;
-
- if (dir->i_nlink >= EXT2_LINK_MAX)
- goto out;
-
- ext2_inc_count(dir);
-
- inode = ll_create_node (dir, dentry->d_name.name,
- dentry->d_name.len, NULL, 0,
- S_IFDIR | mode, 0);
- err = PTR_ERR(inode);
- if (IS_ERR(inode))
- goto out_dir;
-
- inode->i_op = &ll_dir_inode_operations;
- inode->i_fop = &ll_dir_operations;
- inode->i_mapping->a_ops = &ll_aops;
- inode->i_nlink = 1;
- ext2_inc_count(inode);
-
- err = ext2_make_empty(inode, dir);
- if (err)
- goto out_fail;
-
- err = ll_add_link(dentry, inode);
- if (err)
- goto out_fail;
-
- d_instantiate(dentry, inode);
-out:
- EXIT;
- return err;
-
-out_fail:
- ext2_dec_count(inode);
- ext2_dec_count(inode);
- iput(inode);
- EXIT;
-out_dir:
- ext2_dec_count(dir);
- EXIT;
- goto out;
-}
-
-static int ll_unlink(struct inode * dir, struct dentry *dentry)
-{
- struct inode * inode = dentry->d_inode;
- struct ext2_dir_entry_2 * de;
- struct page * page;
- int err = -ENOENT;
-
- de = ext2_find_entry (dir, dentry, &page);
- if (!de)
- goto out;
-
- err = ll_mdc_unlink(dir, dentry->d_name.name, dentry->d_name.len);
- if (err)
- goto out;
-
-
- err = ext2_delete_entry (de, page);
- if (err)
- goto out;
-
- inode->i_ctime = dir->i_ctime;
- ext2_dec_count(inode);
- err = 0;
-out:
- return err;
-}
-
-
-static int ll_rmdir (struct inode * dir, struct dentry *dentry)
-{
- struct inode * inode = dentry->d_inode;
- int err = -ENOTEMPTY;
-
- if (ext2_empty_dir(inode)) {
- err = ll_unlink(dir, dentry);
- if (!err) {
- inode->i_size = 0;
- ext2_dec_count(inode);
- ext2_dec_count(dir);
- }
- }
- return err;
-}
-
-static int ll_rename (struct inode * old_dir, struct dentry * old_dentry,
- struct inode * new_dir, struct dentry * new_dentry )
-{
- struct inode * old_inode = old_dentry->d_inode;
- struct inode * new_inode = new_dentry->d_inode;
- struct page * dir_page = NULL;
- struct ext2_dir_entry_2 * dir_de = NULL;
- struct page * old_page;
- struct ext2_dir_entry_2 * old_de;
- int err = -ENOENT;
-
- err = ll_mdc_rename(old_dir, new_dir, old_dentry, new_dentry);
- if (err)
- goto out;
-
- old_de = ext2_find_entry (old_dir, old_dentry, &old_page);
- if (!old_de)
- goto out;
-
- if (S_ISDIR(old_inode->i_mode)) {
- err = -EIO;
- dir_de = ext2_dotdot(old_inode, &dir_page);
- if (!dir_de)
- goto out_old;
- }
-
- if (new_inode) {
- struct page *new_page;
- struct ext2_dir_entry_2 *new_de;
-
- err = -ENOTEMPTY;
- if (dir_de && !ext2_empty_dir (new_inode))
- goto out_dir;
-
- err = -ENOENT;
- new_de = ext2_find_entry (new_dir, new_dentry, &new_page);
- if (!new_de)
- goto out_dir;
- ext2_inc_count(old_inode);
- ext2_set_link(new_dir, new_de, new_page, old_inode);
- new_inode->i_ctime = CURRENT_TIME;
- if (dir_de)
- new_inode->i_nlink--;
- ext2_dec_count(new_inode);
- } else {
- if (dir_de) {
- err = -EMLINK;
- if (new_dir->i_nlink >= EXT2_LINK_MAX)
- goto out_dir;
- }
- ext2_inc_count(old_inode);
- err = ll_add_link(new_dentry, old_inode);
- if (err) {
- ext2_dec_count(old_inode);
- goto out_dir;
- }
- if (dir_de)
- ext2_inc_count(new_dir);
- }
-
- ext2_delete_entry (old_de, old_page);
- ext2_dec_count(old_inode);
-
- if (dir_de) {
- ext2_set_link(old_inode, dir_de, dir_page, new_dir);
- ext2_dec_count(old_dir);
- }
- return 0;
-
-
-out_dir:
- if (dir_de) {
- kunmap(dir_page);
- page_cache_release(dir_page);
- }
-out_old:
- kunmap(old_page);
- page_cache_release(old_page);
-out:
- return err;
-}
-
-struct inode_operations ll_dir_inode_operations = {
- create: ll_create,
- lookup: ll_lookup,
- link: ll_link,
- unlink: ll_unlink,
- symlink: ll_symlink,
- mkdir: ll_mkdir,
- rmdir: ll_rmdir,
- mknod: ll_mknod,
- rename: ll_rename,
- setattr: ll_setattr
-};
+++ /dev/null
-/*
- * Lustre Light I/O Page Cache
- *
- * Copyright (C) 2002, Cluster File Systems, Inc.
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/locks.h>
-#include <linux/unistd.h>
-#include <linux/version.h>
-#include <asm/system.h>
-#include <asm/uaccess.h>
-
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <asm/uaccess.h>
-#include <asm/segment.h>
-#include <linux/mm.h>
-#include <linux/pagemap.h>
-#include <linux/smp_lock.h>
-
-#define DEBUG_SUBSYSTEM S_LLIGHT
-
-#include <linux/obd_support.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
-#include <linux/lustre_mds.h>
-#include <linux/lustre_light.h>
-
-int ll_inode_setattr(struct inode *inode, struct iattr *attr, int do_trunc);
-
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,10))
-/*
- * Add a page to the dirty page list.
- */
-void __set_page_dirty(struct page *page)
-{
- struct address_space *mapping;
- spinlock_t *pg_lock;
-
- pg_lock = PAGECACHE_LOCK(page);
- spin_lock(pg_lock);
-
- mapping = page->mapping;
- spin_lock(&mapping->page_lock);
-
- list_del(&page->list);
- list_add(&page->list, &mapping->dirty_pages);
-
- spin_unlock(&mapping->page_lock);
- spin_unlock(pg_lock);
-
- if (mapping->host)
- mark_inode_dirty_pages(mapping->host);
-}
-#else
-/*
- * Add a page to the dirty page list.
- */
-void set_page_dirty(struct page *page)
-{
- if (!test_and_set_bit(PG_dirty, &page->flags)) {
- struct address_space *mapping = page->mapping;
-
- if (mapping) {
- spin_lock(&pagecache_lock);
- list_del(&page->list);
- list_add(&page->list, &mapping->dirty_pages);
- spin_unlock(&pagecache_lock);
-
- if (mapping->host)
- mark_inode_dirty_pages(mapping->host);
- }
- }
-}
-#endif
-
-inline struct obdo * ll_oa_from_inode(struct inode *inode, int valid)
-{
- struct ll_inode_info *oinfo = ll_i2info(inode);
- struct obdo *oa = obdo_alloc();
- if ( !oa ) {
- CERROR("no memory to allocate obdo!\n");
- return NULL;
- }
- oa->o_valid = valid;
-
- if ( oa->o_valid & OBD_MD_FLID )
- oa->o_id = oinfo->lli_objid;
- if ( oa->o_valid & OBD_MD_FLATIME )
- oa->o_atime = inode->i_atime;
- if ( oa->o_valid & OBD_MD_FLMTIME )
- oa->o_mtime = inode->i_mtime;
- if ( oa->o_valid & OBD_MD_FLCTIME )
- oa->o_ctime = inode->i_ctime;
- if ( oa->o_valid & OBD_MD_FLSIZE )
- oa->o_size = inode->i_size;
- if ( oa->o_valid & OBD_MD_FLBLOCKS ) /* allocation of space */
- oa->o_blocks = inode->i_blocks;
- if ( oa->o_valid & OBD_MD_FLBLKSZ )
- oa->o_blksize = inode->i_blksize;
- if ( oa->o_valid & OBD_MD_FLMODE )
- oa->o_mode = inode->i_mode;
- if ( oa->o_valid & OBD_MD_FLUID )
- oa->o_uid = inode->i_uid;
- if ( oa->o_valid & OBD_MD_FLGID )
- oa->o_gid = inode->i_gid;
- if ( oa->o_valid & OBD_MD_FLFLAGS )
- oa->o_flags = inode->i_flags;
- if ( oa->o_valid & OBD_MD_FLNLINK )
- oa->o_nlink = inode->i_nlink;
- if ( oa->o_valid & OBD_MD_FLGENER )
- oa->o_generation = inode->i_generation;
-
- CDEBUG(D_INFO, "src inode %ld, dst obdo %ld valid 0x%08x\n",
- inode->i_ino, (long)oa->o_id, oa->o_valid);
-#if 0
- /* this will transfer metadata for the logical object to
- the oa: that metadata could contain the constituent objects
- */
- if (ll_has_inline(inode)) {
- CDEBUG(D_INODE, "copying inline data from inode to obdo\n");
- memcpy(oa->o_inline, oinfo->lli_inline, OBD_INLINESZ);
- oa->o_obdflags |= OBD_FL_INLINEDATA;
- oa->o_valid |= OBD_MD_FLINLINE;
- }
-#endif
- return oa;
-} /* ll_oa_from_inode */
-
-
-
-/*
- * Remove page from dirty list
- */
-void __set_page_clean(struct page *page)
-{
- struct address_space *mapping = page->mapping;
- struct inode *inode;
-
- if (!mapping)
- return;
-
- list_del(&page->list);
- list_add(&page->list, &mapping->clean_pages);
-
- inode = mapping->host;
- if (list_empty(&mapping->dirty_pages)) {
- CDEBUG(D_INODE, "inode clean\n");
- inode->i_state &= ~I_DIRTY_PAGES;
- }
- EXIT;
-}
-
-/* SYNCHRONOUS I/O to object storage for an inode */
-static int ll_brw(int rw, struct inode *inode, struct page *page, int create)
-{
- obd_count num_obdo = 1;
- obd_count bufs_per_obdo = 1;
- struct obdo *oa;
- obd_size count = PAGE_SIZE;
- obd_off offset = ((obd_off)page->index) << PAGE_SHIFT;
- obd_flag flags = create ? OBD_BRW_CREATE : 0;
- int err;
-
- ENTRY;
-
- oa = ll_oa_from_inode(inode, OBD_MD_FLNOTOBD);
- if (!oa) {
- return -ENOMEM;
- }
- err = obd_brw(rw, ll_i2obdconn(inode), num_obdo, &oa, &bufs_per_obdo,
- &page, &count, &offset, &flags);
-
- obdo_free(oa);
- EXIT;
- return err;
-} /* ll_brw */
-
-extern void set_page_clean(struct page *);
-
-
-
-/* returns the page unlocked, but with a reference */
-int ll_readpage(struct file *file, struct page *page)
-{
- struct inode *inode = page->mapping->host;
- int rc;
-
- ENTRY;
-
- if ( ((inode->i_size + PAGE_CACHE_SIZE -1)>>PAGE_SHIFT)
- <= page->index) {
- memset(kmap(page), 0, PAGE_CACHE_SIZE);
- kunmap(page);
- goto readpage_out;
- }
-
- if (Page_Uptodate(page)) {
- EXIT;
- goto readpage_out;
- }
-
- rc = ll_brw(OBD_BRW_READ, inode, page, 0);
- if ( rc ) {
- EXIT;
- return rc;
- }
-
- readpage_out:
- SetPageUptodate(page);
- obd_unlock_page(page);
- EXIT;
- return 0;
-} /* ll_readpage */
-
-
-int ll_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
-{
- struct inode *inode = page->mapping->host;
- obd_off offset = ((obd_off)page->index) << PAGE_SHIFT;
- int rc = 0;
- ENTRY;
-
- kmap(page);
- if (Page_Uptodate(page)) {
- EXIT;
- goto prepare_done;
- }
-
- if ( (from <= offset) && (to >= offset + PAGE_SIZE) ) {
- EXIT;
- return 0;
- }
-
- rc = ll_brw(OBD_BRW_READ, inode, page, 0);
- if ( !rc ) {
- SetPageUptodate(page);
- }
-
- prepare_done:
- set_page_dirty(page);
- EXIT;
- return rc;
-}
-
-/* returns the page unlocked, but with a reference */
-int ll_writepage(struct page *page)
-{
- struct inode *inode = page->mapping->host;
- int err;
- ENTRY;
-
- err = ll_brw(OBD_BRW_WRITE, inode, page, 1);
- if ( !err ) {
- SetPageUptodate(page);
- set_page_clean(page);
- } else {
- CERROR("ll_brw failure %d\n", err);
- }
- EXIT;
- return err;
-}
-
-/* SYNCHRONOUS I/O to object storage for an inode -- object attr will be updated too */
-int ll_commit_write(struct file *file, struct page *page,
- unsigned from, unsigned to)
-{
- int create = 1;
- struct inode *inode = page->mapping->host;
- obd_count num_obdo = 1;
- obd_count bufs_per_obdo = 1;
- struct obdo *oa;
- obd_size count = to;
- obd_off offset = (((obd_off)page->index) << PAGE_SHIFT);
- obd_flag flags = create ? OBD_BRW_CREATE : 0;
- int err;
- struct iattr iattr;
-
- ENTRY;
- oa = ll_oa_from_inode(inode, OBD_MD_FLNOTOBD);
- if (! oa ) {
- return -ENOMEM;
- }
-
- CDEBUG(D_INODE, "commit_page writing (at %d) to %d, count %Ld\n",
- from, to, count);
-
- err = obd_brw(OBD_BRW_WRITE, ll_i2obdconn(inode), num_obdo, &oa, &bufs_per_obdo,
- &page, &count, &offset, &flags);
- if ( !err ) {
- SetPageUptodate(page);
- set_page_clean(page);
- }
- kunmap(page);
-
- if (offset + to > inode->i_size) {
- iattr.ia_valid = ATTR_SIZE;
- iattr.ia_size = offset + to;
- /* do NOT truncate */
- err = ll_inode_setattr(inode, &iattr, 0);
- if (err) {
- CERROR("failed - %d.\n", err);
- obdo_free(oa);
- EXIT;
- return -EIO;
- }
- }
-
- obdo_free(oa);
- EXIT;
- return err;
-} /* ll_brw */
-
-void ll_truncate(struct inode *inode)
-{
- struct obdo *oa;
- int err;
- ENTRY;
-
- oa = ll_oa_from_inode(inode, OBD_MD_FLNOTOBD);
- if ( !oa ) {
- CERROR("no memory to allocate obdo!\n");
- return;
- }
-
- CDEBUG(D_INFO, "calling punch for %ld (%Lu bytes at 0)\n",
- (long)oa->o_id, oa->o_size);
- err = obd_punch(ll_i2obdconn(inode), oa, oa->o_size, 0);
- obdo_free(oa);
-
- if (err) {
- CERROR("obd_truncate fails (%d)\n", err);
- }
- EXIT;
- return;
-} /* ll_truncate */
-
-struct address_space_operations ll_aops = {
- readpage: ll_readpage,
- writepage: ll_writepage,
- sync_page: block_sync_page,
- prepare_write: ll_prepare_write,
- commit_write: ll_commit_write,
- bmap: NULL
-};
-
+++ /dev/null
-/*
- * Lustre Light Super operations
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * Copryright (C) 1996 Peter J. Braam <braam@stelias.com>
- * Copryright (C) 1999 Stelias Computing Inc. <braam@stelias.com>
- * Copryright (C) 1999 Seagate Technology Inc.
- * Copryright (C) 2001 Mountain View Data, Inc.
- * Copryright (C) 2002 Cluster File Systems, Inc.
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/locks.h>
-#include <linux/unistd.h>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <asm/uaccess.h>
-#include <asm/segment.h>
-
-#define DEBUG_SUBSYSTEM S_LLIGHT
-
-#include <linux/obd_support.h>
-#include <linux/obd_class.h>
-#include <linux/lustre_light.h>
-
-extern struct address_space_operations ll_aops;
-extern struct address_space_operations ll_dir_aops;
-struct super_operations ll_super_operations;
-long obd_memory = 0;
-
-static char *ll_read_opt(const char *opt, char *data)
-{
- char *value;
- char *retval;
- ENTRY;
-
- CDEBUG(D_INFO, "option: %s, data %s\n", opt, data);
- if ( strncmp(opt, data, strlen(opt)) ) {
- EXIT;
- return NULL;
- }
- if ( (value = strchr(data, '=')) == NULL ) {
- EXIT;
- return NULL;
- }
-
- value++;
- OBD_ALLOC(retval, strlen(value) + 1);
- if ( !retval ) {
- CERROR("out of memory!\n");
- return NULL;
- }
-
- memcpy(retval, value, strlen(value)+1);
- CDEBUG(D_SUPER, "Assigned option: %s, value %s\n", opt, retval);
- EXIT;
- return retval;
-}
-
-static void ll_options(char *options, char **dev, char **vers)
-{
- char *this_char;
- ENTRY;
-
- if (!options) {
- EXIT;
- return;
- }
-
- for (this_char = strtok (options, ",");
- this_char != NULL;
- this_char = strtok (NULL, ",")) {
- CDEBUG(D_INFO, "this_char %s\n", this_char);
- if ( (!*dev && (*dev = ll_read_opt("device", this_char)))||
- (!*vers && (*vers = ll_read_opt("version", this_char))) )
- continue;
-
- }
- EXIT;
-}
-
-static struct super_block * ll_read_super(struct super_block *sb,
- void *data, int silent)
-{
- struct inode *root = 0;
- struct ll_sb_info *sbi;
- char *device = NULL;
- char *version = NULL;
- int connected = 0;
- int devno;
- int err;
- struct mds_rep *rep;
- struct ptlrep_hdr *hdr = NULL;
-
- ENTRY;
- MOD_INC_USE_COUNT;
-
- OBD_ALLOC(sbi, sizeof(*sbi));
- if (!sbi) {
- EXIT;
- return NULL;
- }
- memset(sbi, 0, sizeof(*sbi));
- sb->u.generic_sbp = (struct ll_sb_info *) sbi;
-
- ll_options(data, &device, &version);
-
- if ( !device ) {
- CERROR("no device\n");
- sb = NULL;
- goto ERR;
- }
-
- devno = simple_strtoul(device, NULL, 0);
- if ( devno >= MAX_OBD_DEVICES ) {
- CERROR("device of %s too high\n", device);
- sb = NULL;
- goto ERR;
- }
-
- sbi->ll_conn.oc_dev = &obd_dev[devno];
- err = obd_connect(&sbi->ll_conn);
- if ( err ) {
- CERROR("cannot connect to %s\n", device);
- sb = NULL;
- goto ERR;
- }
- connected = 1;
-
- err = mdc_create_client("mds", &sbi->ll_mds_client);
- if (err) {
- CERROR("cannot find MDS\n");
- sb = NULL;
- goto ERR;
- }
- sbi->ll_super = sb;
- sbi->ll_rootino = 2;
-
- sb->s_maxbytes = 1LL << 36;
- sb->s_blocksize = PAGE_SIZE;
- sb->s_blocksize_bits = (unsigned char)PAGE_SHIFT;
- sb->s_magic = LL_SUPER_MAGIC;
- sb->s_op = &ll_super_operations;
-
- /* make root inode */
- err = mdc_getattr(&sbi->ll_mds_client, sbi->ll_rootino, S_IFDIR,
- OBD_MD_FLNOTOBD|OBD_MD_FLBLOCKS,
- &rep, &hdr);
- if (err) {
- CERROR("mds_getattr failed for root %d\n", err);
- sb = NULL;
- goto ERR;
- }
-
- root = iget4(sb, sbi->ll_rootino, NULL, rep);
- if (root) {
- sb->s_root = d_alloc_root(root);
- } else {
- CERROR("lustre_light: bad iget4 for root\n");
- sb = NULL;
- goto ERR;
- }
-
-ERR:
- if (hdr)
- /* FIXME: sigh, another stupid hardcoded size */
- OBD_FREE(hdr, sizeof(struct ptlrep_hdr) +
- sizeof(struct mds_rep));
- if (device)
- OBD_FREE(device, strlen(device) + 1);
- if (version)
- OBD_FREE(version, strlen(version) + 1);
- if (!sb && connected)
- obd_disconnect(&sbi->ll_conn);
-
- if (!sb && root) {
- iput(root);
- }
- if (!sb)
- MOD_DEC_USE_COUNT;
-
- EXIT;
- return sb;
-} /* ll_read_super */
-
-static void ll_put_super(struct super_block *sb)
-{
- struct ll_sb_info *sbi = sb->u.generic_sbp;
- ENTRY;
- obd_disconnect(&sbi->ll_conn);
- OBD_FREE(sb->u.generic_sbp, sizeof(struct ll_sb_info));
- MOD_DEC_USE_COUNT;
- EXIT;
-} /* ll_put_super */
-
-
-extern inline struct obdo * ll_oa_from_inode(struct inode *inode, int valid);
-static void ll_delete_inode(struct inode *inode)
-{
- if (S_ISREG(inode->i_mode)) {
- int err;
- struct obdo *oa;
- oa = ll_oa_from_inode(inode, OBD_MD_FLNOTOBD);
- if (!oa) {
- CERROR("no memory\n");
- }
-
- err = obd_destroy(IID(inode), oa);
- CDEBUG(D_INODE, "obd destroy of %Ld error %d\n",
- oa->o_id, err);
- obdo_free(oa);
- }
-
- clear_inode(inode);
-}
-
-/* like inode_setattr, but doesn't mark the inode dirty */
-static int ll_attr2inode(struct inode * inode, struct iattr * attr, int trunc)
-{
- unsigned int ia_valid = attr->ia_valid;
- int error = 0;
-
- if ((ia_valid & ATTR_SIZE) && trunc ) {
- error = vmtruncate(inode, attr->ia_size);
- if (error)
- goto out;
- } else if (ia_valid & ATTR_SIZE) {
- inode->i_size = attr->ia_size;
- }
-
- if (ia_valid & ATTR_UID)
- inode->i_uid = attr->ia_uid;
- if (ia_valid & ATTR_GID)
- inode->i_gid = attr->ia_gid;
- if (ia_valid & ATTR_ATIME)
- inode->i_atime = attr->ia_atime;
- if (ia_valid & ATTR_MTIME)
- inode->i_mtime = attr->ia_mtime;
- if (ia_valid & ATTR_CTIME)
- inode->i_ctime = attr->ia_ctime;
- if (ia_valid & ATTR_MODE) {
- inode->i_mode = attr->ia_mode;
- if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
- inode->i_mode &= ~S_ISGID;
- }
-out:
- return error;
-}
-
-int ll_inode_setattr(struct inode *inode, struct iattr *attr, int do_trunc)
-{
- struct ptlrep_hdr *hdr = NULL;
- struct ll_sb_info *sbi = ll_i2sbi(inode);
- int err;
-
- ENTRY;
-
- /* change incore inode */
- ll_attr2inode(inode, attr, do_trunc);
-
- err = mdc_setattr(&sbi->ll_mds_client, inode, attr, NULL, &hdr);
- if ( err )
- CERROR("ll_setattr fails (%d)\n", err);
-
- EXIT;
- return err;
-}
-
-int ll_setattr(struct dentry *de, struct iattr *attr)
-{
- return ll_inode_setattr(de->d_inode, attr, 1);
-}
-
-static int ll_statfs(struct super_block *sb, struct statfs *buf)
-{
- struct statfs tmp;
- int err;
-
- ENTRY;
-
- err = obd_statfs(ID(sb), &tmp);
- if ( err ) {
- CERROR("obd_statfs fails (%d)\n", err);
- return err;
- }
- memcpy(buf, &tmp, sizeof(*buf));
- CDEBUG(D_SUPER, "statfs returns avail %ld\n", tmp.f_bavail);
- EXIT;
-
- return err;
-}
-
-static void inline ll_to_inode(struct inode *dst, struct mds_rep *rep)
-{
- struct ll_inode_info *ii =
- (struct ll_inode_info *) &dst->u.generic_ip;
-
- /* core attributes first */
- if ( rep->valid & OBD_MD_FLID )
- dst->i_ino = rep->ino;
- if ( rep->valid & OBD_MD_FLATIME )
- dst->i_atime = rep->atime;
- if ( rep->valid & OBD_MD_FLMTIME )
- dst->i_mtime = rep->mtime;
- if ( rep->valid & OBD_MD_FLCTIME )
- dst->i_ctime = rep->ctime;
- if ( rep->valid & OBD_MD_FLSIZE )
- dst->i_size = rep->size;
- if ( rep->valid & OBD_MD_FLMODE )
- dst->i_mode = rep->mode;
- if ( rep->valid & OBD_MD_FLUID )
- dst->i_uid = rep->uid;
- if ( rep->valid & OBD_MD_FLGID )
- dst->i_gid = rep->gid;
- if ( rep->valid & OBD_MD_FLFLAGS )
- dst->i_flags = rep->flags;
- if ( rep->valid & OBD_MD_FLNLINK )
- dst->i_nlink = rep->nlink;
- if ( rep->valid & OBD_MD_FLGENER )
- dst->i_generation = rep->generation;
-
- /* this will become more elaborate for striping etc */
- if (rep->valid & OBD_MD_FLOBJID)
- ii->lli_objid = rep->objid;
-#if 0
-
- if (obdo_has_inline(oa)) {
- if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
- S_ISFIFO(inode->i_mode)) {
- obd_rdev rdev = *((obd_rdev *)oa->o_inline);
- CDEBUG(D_INODE,
- "copying device %x from obdo to inode\n", rdev);
- init_special_inode(inode, inode->i_mode, rdev);
- } else {
- CDEBUG(D_INFO, "copying inline from obdo to inode\n");
- memcpy(oinfo->lli_inline, oa->o_inline, OBD_INLINESZ);
- }
- oinfo->lli_flags |= OBD_FL_INLINEDATA;
- }
-#endif
-} /* ll_to_inode */
-
-static inline void ll_read_inode2(struct inode *inode, void *opaque)
-{
- struct mds_rep *rep = opaque;
-
- ENTRY;
- ll_to_inode(inode, rep);
-
- /* OIDEBUG(inode); */
-
- if (S_ISREG(inode->i_mode)) {
- inode->i_op = &ll_file_inode_operations;
- inode->i_fop = &ll_file_operations;
- inode->i_mapping->a_ops = &ll_aops;
- EXIT;
- } else if (S_ISDIR(inode->i_mode)) {
- inode->i_op = &ll_dir_inode_operations;
- inode->i_fop = &ll_dir_operations;
- inode->i_mapping->a_ops = &ll_dir_aops;
- EXIT;
- } else if (S_ISLNK(inode->i_mode)) {
- inode->i_op = &ll_fast_symlink_inode_operations;
- EXIT;
- } else {
- init_special_inode(inode, inode->i_mode,
- ((int *)ll_i2info(inode)->lli_inline)[0]);
- }
-
- EXIT;
- return;
-}
-
-/* exported operations */
-struct super_operations ll_super_operations =
-{
- read_inode2: ll_read_inode2,
- delete_inode: ll_delete_inode,
- put_super: ll_put_super,
- // statfs: ll_statfs
-};
-
-struct file_system_type lustre_light_fs_type = {
- "lustre_light", 0, ll_read_super, NULL
-};
-
-static int __init init_lustre_light(void)
-{
- printk(KERN_INFO "Lustre Light 0.0.1, braam@clusterfs.com\n");
-
- return register_filesystem(&lustre_light_fs_type);
-}
-
-static void __exit exit_lustre_light(void)
-{
- unregister_filesystem(&lustre_light_fs_type);
-}
-
-MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
-MODULE_DESCRIPTION("Lustre Light Client File System v1.0");
-MODULE_LICENSE("GPL");
-
-module_init(init_lustre_light);
-module_exit(exit_lustre_light);
+++ /dev/null
-/*
- * linux/fs/ext2/symlink.c
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- * from
- *
- * linux/fs/minix/symlink.c
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- *
- * ext2 symlink handling code
- *
- * Modified for OBDFS:
- * Copyright (C) 1999 Seagate Technology Inc. (author: braam@stelias.com)
- */
-
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/stat.h>
-#include <linux/locks.h>
-
-#define DEBUG_SUBSYSTEM S_LLIGHT
-
-#include <linux/obd_support.h> /* for ENTRY and EXIT only */
-#include <linux/lustre_light.h>
-
-static int ll_fast_readlink(struct dentry *dentry, char *buffer, int buflen)
-{
- char *s = ll_i2info(dentry->d_inode)->lli_inline;
- return vfs_readlink(dentry, buffer, buflen, s);
-}
-
-static int ll_fast_follow_link(struct dentry *dentry, struct nameidata *nd)
-{
- char *s = ll_i2info(dentry->d_inode)->lli_inline;
- return vfs_follow_link(nd, s);
-}
-
-extern int ll_setattr(struct dentry *de, struct iattr *attr);
-struct inode_operations ll_fast_symlink_inode_operations = {
- readlink: ll_fast_readlink,
- follow_link: ll_fast_follow_link,
- setattr: ll_setattr
-};
-
+++ /dev/null
-/*
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- */
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/sysctl.h>
-#include <linux/swapctl.h>
-#include <linux/proc_fs.h>
-#include <linux/slab.h>
-#include <linux/stat.h>
-#include <linux/ctype.h>
-#include <asm/bitops.h>
-#include <asm/segment.h>
-#include <asm/uaccess.h>
-#include <linux/utsname.h>
-
-struct ctl_table_header *ll_table_header = NULL;
-
-int ll_debug_level = 0;
-int ll_print_entry = 1;
-
-
-#define LL_SYSCTL 1
-
-#define LL_DEBUG 1 /* control debugging */
-#define LL_ENTRY 2 /* control enter/leave pattern */
-#define LL_TIMEOUT 3 /* timeout on upcalls to become intrble */
-#define LL_HARD 4 /* mount type "hard" or "soft" */
-#define LL_VARS 5
-#define LL_INDEX 6
-#define LL_RESET 7
-
-#define LL_VARS_SLOT 2
-
-static ctl_table ll_table[] = {
- {LL_DEBUG, "debug", &ll_debug_level, sizeof(int), 0644, NULL, &proc_dointvec},
- {LL_ENTRY, "trace", &ll_print_entry, sizeof(int), 0644, NULL, &proc_dointvec},
- { 0 }
-};
-
-static ctl_table top_table[] = {
- {LL_SYSCTL, "lustre_light", NULL, 0, 0555, ll_table},
- {0}
-};
-
-void ll_sysctl_init (void)
-{
-
-#ifdef CONFIG_SYSCTL
- if ( !ll_table_header )
- ll_table_header = register_sysctl_table(top_table, 0);
-#endif
-}
-
-void ll_sysctl_clean (void)
-{
-#ifdef CONFIG_SYSCTL
- if ( ll_table_header )
- unregister_sysctl_table(ll_table_header);
- ll_table_header = NULL;
-#endif
-}
+++ /dev/null
-.Xrefs
-config.log
-config.status
-configure
-Makefile
-Makefile.in
-.deps
-TAGS
+++ /dev/null
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-DEFS:=
-
-MODULE = mdc
-modulefs_DATA = mdc.o
-EXTRA_PROGRAMS = mdc
-
-
-mdc_SOURCES = mds_pack.c mdc_request.c mdc_reint.c mds_updates.c
-
-mds_pack.c:
- ln -s ../lib/mds_pack.c .
-mds_updates.c:
- ln -s ../lib/mds_updates.c .
-
-include $(top_srcdir)/Rules
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
- *
- * This file is part of Portals, http://www.sf.net/projects/lustre/
- *
- * Portals is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Portals is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Portals; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#define EXPORT_SYMTAB
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/locks.h>
-#include <linux/unistd.h>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-#include <linux/module.h>
-
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <asm/uaccess.h>
-#include <asm/segment.h>
-#include <linux/miscdevice.h>
-
-#define DEBUG_SUBSYSTEM S_MDC
-
-#include <linux/obd_support.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
-#include <linux/lustre_mds.h>
-
-extern int mdc_reint(struct ptlrpc_client *peer, struct ptlrpc_request *request);
-
-int mdc_setattr(struct ptlrpc_client *peer,
- struct inode *inode, struct iattr *iattr,
- struct mds_rep **rep, struct ptlrep_hdr **hdr)
-{
- int rc;
- struct ptlrpc_request *request;
- struct mds_rec_setattr *rec;
-
- request = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL, sizeof(*rec), NULL);
- if (!request) {
- CERROR("mdc request: cannot pack\n");
- return -ENOMEM;
- }
-
- rec = mds_req_tgt(request->rq_req.mds);
- mds_setattr_pack(rec, inode, iattr);
- request->rq_req.mds->opcode = HTON__u32(REINT_SETATTR);
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
-
- rc = mdc_reint(peer, request);
- if (rc)
- return rc;
-
- if (rep) {
- *rep = request->rq_rep.mds;
- }
- if (hdr) {
- *hdr = request->rq_rephdr;
- }
-
- return 0;
-}
-
-int mdc_create(struct ptlrpc_client *peer,
- struct inode *dir, const char *name, int namelen,
- const char *tgt, int tgtlen,
- int mode, __u64 id, __u32 uid, __u32 gid, __u64 time,
- struct mds_rep **rep, struct ptlrep_hdr **hdr)
-{
- int rc;
- struct ptlrpc_request *request;
- struct mds_rec_create *rec;
-
- request = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL,
- sizeof(*rec) + size_round0(namelen) +
- size_round0(tgtlen), NULL);
- if (!request) {
- CERROR("mdc_create: cannot pack\n");
- return -ENOMEM;
- }
-
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
-
- rec = mds_req_tgt(request->rq_req.mds);
- mds_create_pack(rec, dir, name, namelen, mode, id, uid, gid, time,
- tgt, tgtlen);
-
- rc = mdc_reint(peer, request);
-
- if (rep) {
- *rep = request->rq_rep.mds;
- }
- if (hdr) {
- *hdr = request->rq_rephdr;
- }
-
- OBD_FREE(request, sizeof(*request));
- return rc;
-}
-
-int mdc_unlink(struct ptlrpc_client *peer,
- struct inode *dir, const char *name, int namelen,
- struct mds_rep **rep, struct ptlrep_hdr **hdr)
-{
- int rc;
- struct ptlrpc_request *request;
- struct mds_rec_unlink *rec;
-
- request = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL,
- sizeof(*rec) + size_round0(namelen), NULL);
- if (!request) {
- CERROR("mdc_unlink: cannot pack\n");
- return -ENOMEM;
- }
-
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
-
- rec = mds_req_tgt(request->rq_req.mds);
- mds_unlink_pack(rec, dir, name, namelen);
-
- rc = mdc_reint(peer, request);
-
- if (rep) {
- *rep = request->rq_rep.mds;
- }
- if (hdr) {
- *hdr = request->rq_rephdr;
- }
-
- OBD_FREE(request, sizeof(*request));
- return rc;
-}
-
-int mdc_link(struct ptlrpc_client *peer, struct dentry *src,
- struct inode *dir, const char *name, int namelen,
- struct mds_rep **rep, struct ptlrep_hdr **hdr)
-{
- int rc;
- struct ptlrpc_request *request;
- struct mds_rec_link *rec;
-
- request = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL,
- sizeof(*rec) + size_round0(namelen), NULL);
- if (!request) {
- CERROR("mdc_link: cannot pack\n");
- return -ENOMEM;
- }
-
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
-
- rec = mds_req_tgt(request->rq_req.mds);
- mds_link_pack(rec, src->d_inode, dir, name, namelen);
-
- rc = mdc_reint(peer, request);
-
- if (rep) {
- *rep = request->rq_rep.mds;
- }
- if (hdr) {
- *hdr = request->rq_rephdr;
- }
-
- OBD_FREE(request, sizeof(*request));
- return rc;
-}
-
-int mdc_rename(struct ptlrpc_client *peer, struct inode *src,
- struct inode *tgt, const char *old, int oldlen,
- const char *new, int newlen,
- struct mds_rep **rep, struct ptlrep_hdr **hdr)
-{
- int rc;
- struct ptlrpc_request *request;
- struct mds_rec_rename *rec;
-
- request = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL,
- sizeof(*rec) + size_round0(oldlen)
- + size_round0(newlen), NULL);
- if (!request) {
- CERROR("mdc_link: cannot pack\n");
- return -ENOMEM;
- }
-
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
-
- rec = mds_req_tgt(request->rq_req.mds);
- mds_rename_pack(rec, src, tgt, old, oldlen, new, newlen);
-
- rc = mdc_reint(peer, request);
-
- if (rep) {
- *rep = request->rq_rep.mds;
- }
- if (hdr) {
- *hdr = request->rq_rephdr;
- }
-
- OBD_FREE(request, sizeof(*request));
- return rc;
-}
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
- *
- * This file is part of Portals, http://www.sf.net/projects/lustre/
- *
- * Portals is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Portals is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Portals; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#define EXPORT_SYMTAB
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/locks.h>
-#include <linux/unistd.h>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-#include <linux/module.h>
-
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <asm/uaccess.h>
-#include <asm/segment.h>
-#include <linux/miscdevice.h>
-
-#define DEBUG_SUBSYSTEM S_MDC
-
-#include <linux/obd_support.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
-#include <linux/lustre_mds.h>
-
-#define REQUEST_MINOR 244
-
-extern int mds_queue_req(struct ptlrpc_request *);
-
-
-int mdc_getattr(struct ptlrpc_client *peer, ino_t ino, int type, int valid,
- struct mds_rep **rep, struct ptlrep_hdr **hdr)
-{
- struct ptlrpc_request *request;
- int rc;
-
- request = ptlrpc_prep_req(peer, MDS_GETATTR, 0, NULL, 0, NULL);
- if (!request) {
- CERROR("llight request: cannot pack\n");
- return -ENOMEM;
- }
-
- ll_ino2fid(&request->rq_req.mds->fid1, ino, 0, type);
-
- request->rq_req.mds->valid = valid;
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
-
- rc = ptlrpc_queue_wait(request, peer);
- if (rc) {
- CERROR("llight request: error in handling %d\n", rc);
- goto out;
- }
-
- CDEBUG(0, "mode: %o\n", request->rq_rep.mds->mode);
-
- if (rep) {
- *rep = request->rq_rep.mds;
- }
- if (hdr) {
- *hdr = request->rq_rephdr;
- }
-
- out:
- ptlrpc_free_req(request);
- return rc;
-}
-
-int mdc_open(struct ptlrpc_client *peer, ino_t ino, int type, int flags,
- __u64 *fh, struct mds_rep **rep, struct ptlrep_hdr **hdr)
-{
- struct ptlrpc_request *request;
- int rc;
-
- request = ptlrpc_prep_req(peer, MDS_OPEN, 0, NULL, 0, NULL);
- if (!request) {
- CERROR("llight request: cannot pack\n");
- return -ENOMEM;
- }
-
- ll_ino2fid(&request->rq_req.mds->fid1, ino, 0, type);
- request->rq_req.mds->flags = flags;
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
-
- rc = ptlrpc_queue_wait(request, peer);
- if (rc) {
- CERROR("llight request: error in handling %d\n", rc);
- goto out;
- }
-
- if (rep) {
- *rep = request->rq_rep.mds;
- }
- if (hdr) {
- *hdr = request->rq_rephdr;
- }
- *fh = request->rq_rep.mds->objid;
-
- out:
- ptlrpc_free_req(request);
- return rc;
-}
-
-
-int mdc_close(struct ptlrpc_client *peer, ino_t ino, int type, __u64 fh,
- struct mds_rep **rep, struct ptlrep_hdr **hdr)
-{
- struct ptlrpc_request *request;
- int rc;
-
- request = ptlrpc_prep_req(peer, MDS_CLOSE, 0, NULL, 0, NULL);
- if (!request) {
- CERROR("llight request: cannot pack\n");
- return -ENOMEM;
- }
-
- ll_ino2fid(&request->rq_req.mds->fid1, ino, 0, type);
- request->rq_req.mds->objid = fh;
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
-
- rc = ptlrpc_queue_wait(request, peer);
- if (rc) {
- CERROR("llight request: error in handling %d\n", rc);
- goto out;
- }
-
- if (rep) {
- *rep = request->rq_rep.mds;
- }
- if (hdr) {
- *hdr = request->rq_rephdr;
- }
-
- out:
- ptlrpc_free_req(request);
- return rc;
-}
-
-int mdc_readpage(struct ptlrpc_client *peer, ino_t ino, int type, __u64 offset,
- char *addr, struct mds_rep **rep, struct ptlrep_hdr **hdr)
-{
- struct ptlrpc_request *request;
- struct niobuf niobuf;
- int rc;
-
- niobuf.addr = (__u64) (long) addr;
-
- CDEBUG(D_INODE, "inode: %ld\n", ino);
-
- request = ptlrpc_prep_req(peer, MDS_READPAGE, 0, NULL,
- sizeof(struct niobuf), (char *)&niobuf);
- if (!request) {
- CERROR("mdc request: cannot pack\n");
- return -ENOMEM;
- }
-
- request->rq_req.mds->fid1.id = ino;
- request->rq_req.mds->fid1.f_type = type;
- request->rq_req.mds->size = offset;
- request->rq_req.mds->tgtlen = sizeof(niobuf);
-
- request->rq_bulklen = PAGE_SIZE;
- request->rq_bulkbuf = (void *)(long)niobuf.addr;
- request->rq_bulk_portal = MDS_BULK_PORTAL;
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep);
-
- rc = ptlrpc_queue_wait(request, peer);
- if (rc) {
- CERROR("mdc request: error in handling %d\n", rc);
- goto out;
- }
-
- CDEBUG(0, "mode: %o\n", request->rq_rep.mds->mode);
-
- if (rep) {
- *rep = request->rq_rep.mds;
- }
- if (hdr) {
- *hdr = request->rq_rephdr;
- }
-
- out:
- ptlrpc_free_req(request);
- return rc;
-}
-
-int mdc_reint(struct ptlrpc_client *peer, struct ptlrpc_request *request)
-{
- int rc;
-
- rc = ptlrpc_queue_wait(request, peer);
- if (rc) {
- CERROR("mdc request: error in handling %d\n", rc);
- }
-
- return rc;
-}
-
-int mdc_create_client(char *uuid, struct ptlrpc_client *cl)
-{
- int err;
-
- memset(cl, 0, sizeof(*cl));
- cl->cli_xid = 0;
- cl->cli_rep_unpack = mds_unpack_rep;
- cl->cli_req_pack = mds_pack_req;
- err = kportal_uuid_to_peer("mds", &cl->cli_server);
- if (err == 0) {
- cl->cli_request_portal = MDS_REQUEST_PORTAL;
- cl->cli_reply_portal = MDS_REPLY_PORTAL;
-
- } else {
- cl->cli_enqueue = mds_queue_req;
- }
- return 0;
-}
-
-static int request_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- int err;
- struct ptlrpc_client peer;
-
- ENTRY;
-
- if (MINOR(inode->i_rdev) != REQUEST_MINOR) {
- EXIT;
- return -EINVAL;
- }
-
- if ( _IOC_TYPE(cmd) != IOC_REQUEST_TYPE ||
- _IOC_NR(cmd) < IOC_REQUEST_MIN_NR ||
- _IOC_NR(cmd) > IOC_REQUEST_MAX_NR ) {
- CDEBUG(D_IOCTL, "invalid ioctl ( type %d, nr %d, size %d )\n",
- _IOC_TYPE(cmd), _IOC_NR(cmd), _IOC_SIZE(cmd));
- EXIT;
- return -EINVAL;
- }
-
- err = mdc_create_client("mds", &peer);
- if (err) {
- CERROR("cannot create client");
- return -EINVAL;
- }
-
- switch (cmd) {
- case IOC_REQUEST_GETATTR: {
- struct ptlrep_hdr *hdr = NULL;
- CERROR("-- getting attr for ino 2\n");
- err = mdc_getattr(&peer, 2, S_IFDIR, ~0, NULL, &hdr);
- if (hdr) {
- /* FIXME: there must be a better way to get the size */
- OBD_FREE(hdr, sizeof(struct ptlrep_hdr) +
- sizeof(struct mds_rep));
- }
- CERROR("-- done err %d\n", err);
- break;
- }
-
- case IOC_REQUEST_READPAGE: {
- struct ptlrep_hdr *hdr = NULL;
- char *buf;
- OBD_ALLOC(buf, PAGE_SIZE);
- if (!buf) {
- err = -ENOMEM;
- break;
- }
- CERROR("-- readpage 0 for ino 2\n");
- err = mdc_readpage(&peer, 2, S_IFDIR, 0, buf, NULL, &hdr);
- CERROR("-- done err %d\n", err);
- if (!err) {
- CERROR("-- status: %d\n", hdr->status);
- err = hdr->status;
- if (hdr)
- OBD_FREE(hdr, sizeof(struct ptlrep_hdr) +
- sizeof(struct mds_rep));
- }
- OBD_FREE(buf, PAGE_SIZE);
- break;
- }
-
- case IOC_REQUEST_SETATTR: {
- struct inode inode;
- struct ptlrep_hdr *hdr;
- struct iattr iattr;
-
- inode.i_ino = 2;
- iattr.ia_mode = 040777;
- iattr.ia_atime = 0;
- iattr.ia_valid = ATTR_MODE | ATTR_ATIME;
-
- err = mdc_setattr(&peer, &inode, &iattr, NULL, &hdr);
- CERROR("-- done err %d\n", err);
- if (!err) {
- CERROR("-- status: %d\n", hdr->status);
- err = hdr->status;
- } else {
- OBD_FREE(hdr, sizeof(struct ptlrep_hdr) +
- sizeof(struct mds_rep));
- }
- break;
- }
-
- case IOC_REQUEST_CREATE: {
- struct inode inode;
- struct ptlrep_hdr *hdr;
- struct iattr iattr;
-
- inode.i_ino = 2;
- iattr.ia_mode = 040777;
- iattr.ia_atime = 0;
- iattr.ia_valid = ATTR_MODE | ATTR_ATIME;
-
- err = mdc_create(&peer, &inode,
- "foofile", strlen("foofile"),
- NULL, 0, 0100707, 47114711,
- 11, 47, 0, NULL, &hdr);
- CERROR("-- done err %d\n", err);
- if (!err) {
- CERROR("-- status: %d\n", hdr->status);
- err = hdr->status;
- }
- OBD_FREE(hdr, sizeof(struct ptlrep_hdr) +
- sizeof(struct mds_rep));
- break;
- }
-
- default:
- err = -EINVAL;
- EXIT;
- break;
- }
- EXIT;
- return err;
-}
-
-
-static struct file_operations requestdev_fops = {
- ioctl: request_ioctl,
-};
-
-
-static struct miscdevice request_dev = {
- REQUEST_MINOR,
- "request",
- &requestdev_fops
-};
-
-
-static int __init ptlrpc_request_init(void)
-{
- misc_register(&request_dev);
- return 0 ;
-}
-
-
-static void __exit ptlrpc_request_exit(void)
-{
- misc_deregister(&request_dev);
-}
-
-MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
-MODULE_DESCRIPTION("Lustre MDS Request Tester v1.0");
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(mdc_create_client);
-EXPORT_SYMBOL(mdc_create);
-EXPORT_SYMBOL(mdc_unlink);
-EXPORT_SYMBOL(mdc_rename);
-EXPORT_SYMBOL(mdc_link);
-EXPORT_SYMBOL(mdc_getattr);
-EXPORT_SYMBOL(mdc_readpage);
-EXPORT_SYMBOL(mdc_setattr);
-
-module_init(ptlrpc_request_init);
-module_exit(ptlrpc_request_exit);
+++ /dev/null
-.Xrefs
-config.log
-config.status
-configure
-Makefile
-Makefile.in
-.deps
-TAGS
+++ /dev/null
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-DEFS:=
-
-MODULE = mds
-modulefs_DATA = mds.o
-EXTRA_PROGRAMS = mds
-
-mds_pack.c:
- ln -s ../lib/mds_pack.c .
-mds_updates.c:
- ln -s ../lib/mds_updates.c .
-
-mds_SOURCES = mds_pack.c handler.c mds_reint.c mds_updates.c
-
-include $(top_srcdir)/Rules
-
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * linux/mds/handler.c
- *
- * Lustre Metadata Server (mds) request handler
- *
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * by Peter Braam <braam@clusterfs.com>
- *
- * This server is single threaded at present (but can easily be multi threaded).
- *
- */
-
-#define EXPORT_SYMTAB
-
-#include <linux/version.h>
-#include <linux/module.h>
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <linux/locks.h>
-#include <linux/ext2_fs.h>
-#include <linux/quotaops.h>
-#include <asm/unistd.h>
-#include <asm/uaccess.h>
-
-#define DEBUG_SUBSYSTEM S_MDS
-
-#include <linux/obd_support.h>
-#include <linux/obd.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
-#include <linux/lustre_mds.h>
-#include <linux/lustre_net.h>
-#include <linux/obd_class.h>
-
-// XXX for testing
-static struct mds_obd *MDS;
-
-// XXX make this networked!
-static int mds_queue_req(struct ptlrpc_request *req)
-{
- struct ptlrpc_request *srv_req;
-
- if (!MDS) {
- EXIT;
- return -1;
- }
-
- OBD_ALLOC(srv_req, sizeof(*srv_req));
- if (!srv_req) {
- EXIT;
- return -ENOMEM;
- }
-
- CDEBUG(0, "---> MDS at %d %p, incoming req %p, srv_req %p\n",
- __LINE__, MDS, req, srv_req);
-
- memset(srv_req, 0, sizeof(*req));
-
- /* move the request buffer */
- srv_req->rq_reqbuf = req->rq_reqbuf;
- srv_req->rq_reqlen = req->rq_reqlen;
- srv_req->rq_obd = MDS;
-
- /* remember where it came from */
- srv_req->rq_reply_handle = req;
-
- list_add(&srv_req->rq_list, &MDS->mds_reqs);
- wake_up(&MDS->mds_waitq);
- return 0;
-}
-
-int mds_sendpage(struct ptlrpc_request *req, struct file *file,
- __u64 offset, struct niobuf *dst)
-{
- int rc;
- mm_segment_t oldfs = get_fs();
-
- if (req->rq_peer.peer_nid == 0) {
- /* dst->addr is a user address, but in a different task! */
- set_fs(KERNEL_DS);
- rc = generic_file_read(file, (char *)(long)dst->addr,
- PAGE_SIZE, &offset);
- set_fs(oldfs);
-
- if (rc != PAGE_SIZE)
- return -EIO;
- } else {
- char *buf;
- DECLARE_WAITQUEUE(wait, current);
-
- OBD_ALLOC(buf, PAGE_SIZE);
- if (!buf)
- return -ENOMEM;
-
- set_fs(KERNEL_DS);
- rc = generic_file_read(file, buf, PAGE_SIZE, &offset);
- set_fs(oldfs);
-
- if (rc != PAGE_SIZE) {
- OBD_FREE(buf, PAGE_SIZE);
- return -EIO;
- }
-
- req->rq_type = PTLRPC_BULK;
- req->rq_bulkbuf = buf;
- req->rq_bulklen = PAGE_SIZE;
-
- init_waitqueue_head(&req->rq_wait_for_bulk);
- rc = ptl_send_buf(req, &req->rq_peer, MDS_BULK_PORTAL);
- add_wait_queue(&req->rq_wait_for_bulk, &wait);
- /* The bulk callback will set rq->bulkbuf to NULL when it's
- * been ACKed and it's finished using it. */
- while (req->rq_bulkbuf != NULL) {
- set_current_state(TASK_INTERRUPTIBLE);
-
- /* if this process really wants to die, let it go */
- if (sigismember(&(current->pending.signal), SIGKILL) ||
- sigismember(&(current->pending.signal), SIGINT))
- break;
-
- schedule();
- }
- remove_wait_queue(&req->rq_wait_for_bulk, &wait);
- set_current_state(TASK_RUNNING);
-
- if (req->rq_bulkbuf != NULL) {
- EXIT;
- return -EINTR;
- }
-
- OBD_FREE(buf, PAGE_SIZE);
- req->rq_bulklen = 0; /* FIXME: eek. */
- }
-
- return 0;
-}
-
-int mds_reply(struct ptlrpc_request *req)
-{
- struct ptlrpc_request *clnt_req = req->rq_reply_handle;
-
- ENTRY;
-
- if (req->rq_obd->mds_service != NULL) {
- /* This is a request that came from the network via portals. */
-
- /* FIXME: we need to increment the count of handled events */
- req->rq_type = PTLRPC_REPLY;
- ptl_send_buf(req, &req->rq_peer, MDS_REPLY_PORTAL);
- } else {
- /* This is a local request that came from another thread. */
-
- /* move the reply to the client */
- clnt_req->rq_replen = req->rq_replen;
- clnt_req->rq_repbuf = req->rq_repbuf;
- req->rq_repbuf = NULL;
- req->rq_replen = 0;
-
- /* free the request buffer */
- OBD_FREE(req->rq_reqbuf, req->rq_reqlen);
- req->rq_reqbuf = NULL;
-
- /* wake up the client */
- wake_up_interruptible(&clnt_req->rq_wait_for_rep);
- }
-
- EXIT;
- return 0;
-}
-
-int mds_error(struct ptlrpc_request *req)
-{
- struct ptlrep_hdr *hdr;
-
- ENTRY;
-
- OBD_ALLOC(hdr, sizeof(*hdr));
- if (!hdr) {
- EXIT;
- return -ENOMEM;
- }
-
- memset(hdr, 0, sizeof(*hdr));
-
- hdr->seqno = req->rq_reqhdr->seqno;
- hdr->status = req->rq_status;
- hdr->type = MDS_TYPE_ERR;
-
- req->rq_repbuf = (char *)hdr;
- req->rq_replen = sizeof(*hdr);
-
- EXIT;
- return mds_reply(req);
-}
-
-struct dentry *mds_fid2dentry(struct mds_obd *mds, struct ll_fid *fid,
- struct vfsmount **mnt)
-{
- /* stolen from NFS */
- struct super_block *sb = mds->mds_sb;
- unsigned long ino = fid->id;
- //__u32 generation = fid->generation;
- __u32 generation = 0;
- struct inode *inode;
- struct list_head *lp;
- struct dentry *result;
-
- if (ino == 0)
- return ERR_PTR(-ESTALE);
-
- inode = iget(sb, ino);
- if (inode == NULL)
- return ERR_PTR(-ENOMEM);
-
- CDEBUG(D_DENTRY, "--> mds_fid2dentry: sb %p\n", inode->i_sb);
-
- if (is_bad_inode(inode)
- || (generation && inode->i_generation != generation)
- ) {
- /* we didn't find the right inode.. */
- CERROR("bad inode %lu, link: %d ct: %d or version %u/%u\n",
- inode->i_ino,
- inode->i_nlink, atomic_read(&inode->i_count),
- inode->i_generation,
- generation);
- iput(inode);
- return ERR_PTR(-ESTALE);
- }
-
- /* now to find a dentry.
- * If possible, get a well-connected one
- */
- if (mnt)
- *mnt = mds->mds_vfsmnt;
- spin_lock(&dcache_lock);
- for (lp = inode->i_dentry.next; lp != &inode->i_dentry ; lp=lp->next) {
- result = list_entry(lp,struct dentry, d_alias);
- if (! (result->d_flags & DCACHE_NFSD_DISCONNECTED)) {
- dget_locked(result);
- result->d_vfs_flags |= DCACHE_REFERENCED;
- spin_unlock(&dcache_lock);
- iput(inode);
- if (mnt)
- mntget(*mnt);
- return result;
- }
- }
- spin_unlock(&dcache_lock);
- result = d_alloc_root(inode);
- if (result == NULL) {
- iput(inode);
- return ERR_PTR(-ENOMEM);
- }
- if (mnt)
- mntget(*mnt);
- result->d_flags |= DCACHE_NFSD_DISCONNECTED;
- return result;
-}
-
-static inline void mds_get_objid(struct inode *inode, __u64 *id)
-{
- memcpy(id, &inode->u.ext2_i.i_data, sizeof(*id));
-}
-
-int mds_getattr(struct ptlrpc_request *req)
-{
- struct dentry *de;
- struct inode *inode;
- struct mds_rep *rep;
- int rc;
-
- rc = mds_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- EXIT;
- CERROR("mds: out of memory\n");
- req->rq_status = -ENOMEM;
- return 0;
- }
-
- req->rq_rephdr->seqno = req->rq_reqhdr->seqno;
- rep = req->rq_rep.mds;
-
- de = mds_fid2dentry(req->rq_obd, &req->rq_req.mds->fid1, NULL);
- if (IS_ERR(de)) {
- EXIT;
- req->rq_rephdr->status = -ENOENT;
- return 0;
- }
-
- inode = de->d_inode;
- rep->ino = inode->i_ino;
- rep->atime = inode->i_atime;
- rep->ctime = inode->i_ctime;
- rep->mtime = inode->i_mtime;
- rep->uid = inode->i_uid;
- rep->gid = inode->i_gid;
- rep->size = inode->i_size;
- rep->mode = inode->i_mode;
- rep->nlink = inode->i_nlink;
- rep->valid = ~0;
- mds_get_objid(inode, &rep->objid);
- dput(de);
- return 0;
-}
-
-int mds_open(struct ptlrpc_request *req)
-{
- struct dentry *de;
- struct inode *inode;
- struct mds_rep *rep;
- struct file *file;
- struct vfsmount *mnt;
- __u32 flags;
- int rc;
-
- rc = mds_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- EXIT;
- CERROR("mds: out of memory\n");
- req->rq_status = -ENOMEM;
- return 0;
- }
-
- req->rq_rephdr->seqno = req->rq_reqhdr->seqno;
- rep = req->rq_rep.mds;
-
- de = mds_fid2dentry(req->rq_obd, &req->rq_req.mds->fid1, &mnt);
- if (IS_ERR(de)) {
- EXIT;
- req->rq_rephdr->status = -ENOENT;
- return 0;
- }
- flags = req->rq_req.mds->flags;
- file = dentry_open(de, mnt, flags);
- if (!file || IS_ERR(file)) {
- req->rq_rephdr->status = -EINVAL;
- return 0;
- }
-
- rep->objid = (__u64) (unsigned long)file;
- mds_get_objid(inode, &rep->objid);
- dput(de);
- return 0;
-}
-
-
-int mds_readpage(struct ptlrpc_request *req)
-{
- struct vfsmount *mnt;
- struct dentry *de;
- struct file *file;
- struct niobuf *niobuf;
- struct mds_rep *rep;
- int rc;
-
- rc = mds_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- EXIT;
- CERROR("mds: out of memory\n");
- req->rq_status = -ENOMEM;
- return 0;
- }
-
- req->rq_rephdr->seqno = req->rq_reqhdr->seqno;
- rep = req->rq_rep.mds;
-
- de = mds_fid2dentry(req->rq_obd, &req->rq_req.mds->fid1, &mnt);
- if (IS_ERR(de)) {
- EXIT;
- req->rq_rephdr->status = PTR_ERR(de);
- return 0;
- }
-
- CDEBUG(D_INODE, "ino %ld\n", de->d_inode->i_ino);
-
- file = dentry_open(de, mnt, O_RDONLY | O_LARGEFILE);
- /* note: in case of an error, dentry_open puts dentry */
- if (IS_ERR(file)) {
- EXIT;
- req->rq_rephdr->status = PTR_ERR(file);
- return 0;
- }
-
- niobuf = mds_req_tgt(req->rq_req.mds);
-
- /* to make this asynchronous make sure that the handling function
- doesn't send a reply when this function completes. Instead a
- callback function would send the reply */
- rc = mds_sendpage(req, file, req->rq_req.mds->size, niobuf);
-
- filp_close(file, 0);
- req->rq_rephdr->status = rc;
- EXIT;
- return 0;
-}
-
-int mds_reint(struct ptlrpc_request *req)
-{
- int rc;
- char *buf = mds_req_tgt(req->rq_req.mds);
- int len = req->rq_req.mds->tgtlen;
- struct mds_update_record rec;
-
- rc = mds_update_unpack(buf, len, &rec);
- if (rc) {
- CERROR("invalid record\n");
- req->rq_status = -EINVAL;
- return 0;
- }
- /* rc will be used to interrupt a for loop over multiple records */
- rc = mds_reint_rec(&rec, req);
- return 0;
-}
-
-//int mds_handle(struct mds_conn *conn, int len, char *buf)
-int mds_handle(struct ptlrpc_request *req)
-{
- int rc;
- struct ptlreq_hdr *hdr;
-
- ENTRY;
-
- hdr = (struct ptlreq_hdr *)req->rq_reqbuf;
-
- if (NTOH__u32(hdr->type) != MDS_TYPE_REQ) {
- CERROR("lustre_mds: wrong packet type sent %d\n",
- NTOH__u32(hdr->type));
- rc = -EINVAL;
- goto out;
- }
-
- rc = mds_unpack_req(req->rq_reqbuf, req->rq_reqlen,
- &req->rq_reqhdr, &req->rq_req);
- if (rc) {
- CERROR("lustre_mds: Invalid request\n");
- EXIT;
- goto out;
- }
-
- switch (req->rq_reqhdr->opc) {
-
- case MDS_GETATTR:
- CDEBUG(D_INODE, "getattr\n");
- rc = mds_getattr(req);
- break;
-
- case MDS_READPAGE:
- CDEBUG(D_INODE, "readpage\n");
- rc = mds_readpage(req);
- break;
-
- case MDS_REINT:
- CDEBUG(D_INODE, "reint\n");
- rc = mds_reint(req);
- break;
-
- default:
- return mds_error(req);
- }
-
-out:
- if (rc) {
- CERROR("no header\n");
- return 0;
- }
-
- if( req->rq_status) {
- mds_error(req);
- } else {
- CDEBUG(D_INODE, "sending reply\n");
- mds_reply(req);
- }
-
- return 0;
-}
-
-
-static void mds_timer_run(unsigned long __data)
-{
- struct task_struct * p = (struct task_struct *) __data;
-
- wake_up_process(p);
-}
-
-int mds_main(void *arg)
-{
- struct mds_obd *mds = (struct mds_obd *) arg;
- struct timer_list timer;
- DECLARE_WAITQUEUE(wait, current);
-
- lock_kernel();
- daemonize();
- spin_lock_irq(¤t->sigmask_lock);
- sigfillset(¤t->blocked);
- recalc_sigpending(current);
- spin_unlock_irq(¤t->sigmask_lock);
-
- sprintf(current->comm, "lustre_mds");
-
- /* Set up an interval timer which can be used to trigger a
- wakeup after the interval expires */
- init_timer(&timer);
- timer.data = (unsigned long) current;
- timer.function = mds_timer_run;
- mds->mds_timer = &timer;
-
- /* Record that the thread is running */
- mds->mds_thread = current;
- mds->mds_flags = MDS_RUNNING;
- wake_up(&mds->mds_done_waitq);
-
- /* And now, wait forever for commit wakeup events. */
- while (1) {
- int signal;
- int rc;
-
- wake_up(&mds->mds_done_waitq);
- CDEBUG(D_INODE, "mds_wakes pick up req here and continue\n");
-
- if (mds->mds_service != NULL) {
- ptl_event_t ev;
- struct ptlrpc_request request;
- struct ptlrpc_service *service;
-
- CDEBUG(D_IOCTL, "-- sleeping\n");
- signal = 0;
- add_wait_queue(&mds->mds_waitq, &wait);
- while (1) {
- set_current_state(TASK_INTERRUPTIBLE);
- rc = PtlEQGet(mds->mds_service->srv_eq_h, &ev);
- if (rc == PTL_OK || rc == PTL_EQ_DROPPED)
- break;
- CERROR("EQGet rc %d\n", rc);
- if (mds->mds_flags & MDS_STOPPING)
- break;
-
- /* if this process really wants to die,
- * let it go */
- if (sigismember(&(current->pending.signal),
- SIGKILL) ||
- sigismember(&(current->pending.signal),
- SIGINT)) {
- signal = 1;
- break;
- }
-
- schedule();
- }
- remove_wait_queue(&mds->mds_waitq, &wait);
- set_current_state(TASK_RUNNING);
- CDEBUG(D_IOCTL, "-- done\n");
-
- if (signal == 1) {
- /* We broke out because of a signal */
- EXIT;
- break;
- }
- if (mds->mds_flags & MDS_STOPPING) {
- break;
- }
-
- service = (struct ptlrpc_service *)ev.mem_desc.user_ptr;
-
- /* FIXME: If we move to an event-driven model,
- * we should put the request on the stack of
- * mds_handle instead. */
- memset(&request, 0, sizeof(request));
- request.rq_reqbuf = ev.mem_desc.start + ev.offset;
- request.rq_reqlen = ev.mem_desc.length;
- request.rq_obd = MDS;
- request.rq_xid = ev.match_bits;
- CERROR("got req %d\n", request.rq_xid);
-
- request.rq_peer.peer_nid = ev.initiator.nid;
- /* FIXME: this NI should be the incoming NI.
- * We don't know how to find that from here. */
- request.rq_peer.peer_ni =
- mds->mds_service->srv_self.peer_ni;
- rc = mds_handle(&request);
-
- /* Inform the rpc layer the event has been handled */
- ptl_received_rpc(service);
- } else {
- struct ptlrpc_request *request;
-
- CDEBUG(D_IOCTL, "-- sleeping\n");
- add_wait_queue(&mds->mds_waitq, &wait);
- while (1) {
- spin_lock(&mds->mds_lock);
- if (!list_empty(&mds->mds_reqs))
- break;
-
- set_current_state(TASK_INTERRUPTIBLE);
-
- /* if this process really wants to die,
- * let it go */
- if (sigismember(&(current->pending.signal),
- SIGKILL) ||
- sigismember(&(current->pending.signal),
- SIGINT))
- break;
-
- spin_unlock(&mds->mds_lock);
-
- schedule();
- }
- remove_wait_queue(&mds->mds_waitq, &wait);
- set_current_state(TASK_RUNNING);
- CDEBUG(D_IOCTL, "-- done\n");
-
- if (list_empty(&mds->mds_reqs)) {
- CDEBUG(D_INODE, "woke because of signal\n");
- spin_unlock(&mds->mds_lock);
- } else {
- request = list_entry(mds->mds_reqs.next,
- struct ptlrpc_request,
- rq_list);
- list_del(&request->rq_list);
- spin_unlock(&mds->mds_lock);
- rc = mds_handle(request);
- }
- }
- }
-
- del_timer_sync(mds->mds_timer);
-
- /* XXX maintain a list of all managed devices: cleanup here */
-
- mds->mds_thread = NULL;
- wake_up(&mds->mds_done_waitq);
- CERROR("lustre_mds: exiting\n");
- return 0;
-}
-
-static void mds_stop_srv_thread(struct mds_obd *mds)
-{
- mds->mds_flags |= MDS_STOPPING;
-
- while (mds->mds_thread) {
- wake_up(&mds->mds_waitq);
- sleep_on(&mds->mds_done_waitq);
- }
-}
-
-static void mds_start_srv_thread(struct mds_obd *mds)
-{
- init_waitqueue_head(&mds->mds_waitq);
- init_waitqueue_head(&mds->mds_done_waitq);
- kernel_thread(mds_main, (void *)mds, CLONE_VM | CLONE_FS | CLONE_FILES);
- while (!mds->mds_thread)
- sleep_on(&mds->mds_done_waitq);
-}
-
-/* mount the file system (secretly) */
-static int mds_setup(struct obd_device *obddev, obd_count len,
- void *buf)
-
-{
- struct obd_ioctl_data* data = buf;
- struct mds_obd *mds = &obddev->u.mds;
- struct vfsmount *mnt;
- struct lustre_peer peer;
- int err;
- ENTRY;
-
-
- mnt = do_kern_mount(data->ioc_inlbuf2, 0, data->ioc_inlbuf1, NULL);
- err = PTR_ERR(mnt);
- if (IS_ERR(mnt)) {
- EXIT;
- return err;
- }
-
- mds->mds_sb = mnt->mnt_root->d_inode->i_sb;
- if (!obddev->u.mds.mds_sb) {
- EXIT;
- return -ENODEV;
- }
-
- mds->mds_vfsmnt = mnt;
- obddev->u.mds.mds_fstype = strdup(data->ioc_inlbuf2);
-
- mds->mds_ctxt.pwdmnt = mnt;
- mds->mds_ctxt.pwd = mnt->mnt_root;
- mds->mds_ctxt.fs = KERNEL_DS;
- mds->mds_remote_nid = 0;
-
- INIT_LIST_HEAD(&mds->mds_reqs);
- mds->mds_thread = NULL;
- mds->mds_flags = 0;
- mds->mds_interval = 3 * HZ;
- MDS = mds;
-
- spin_lock_init(&obddev->u.mds.mds_lock);
-
- err = kportal_uuid_to_peer("self", &peer);
- if (err == 0) {
- OBD_ALLOC(mds->mds_service, sizeof(*mds->mds_service));
- if (mds->mds_service == NULL)
- return -ENOMEM;
- mds->mds_service->srv_buf_size = 64 * 1024;
- //mds->mds_service->srv_buf_size = 1024;
- mds->mds_service->srv_portal = MDS_REQUEST_PORTAL;
- memcpy(&mds->mds_service->srv_self, &peer, sizeof(peer));
- mds->mds_service->srv_wait_queue = &mds->mds_waitq;
-
- rpc_register_service(mds->mds_service, "self");
- }
-
- mds_start_srv_thread(mds);
-
- MOD_INC_USE_COUNT;
- EXIT;
- return 0;
-}
-
-static int mds_cleanup(struct obd_device * obddev)
-{
- struct super_block *sb;
- struct mds_obd *mds = &obddev->u.mds;
-
- ENTRY;
-
- if ( !(obddev->obd_flags & OBD_SET_UP) ) {
- EXIT;
- return 0;
- }
-
- if ( !list_empty(&obddev->obd_gen_clients) ) {
- CERROR("still has clients!\n");
- EXIT;
- return -EBUSY;
- }
-
- MDS = NULL;
- mds_stop_srv_thread(mds);
- rpc_unregister_service(mds->mds_service);
- OBD_FREE(mds->mds_service, sizeof(*mds->mds_service));
-
- sb = mds->mds_sb;
- if (!mds->mds_sb){
- EXIT;
- return 0;
- }
-
- if (!list_empty(&mds->mds_reqs)) {
- // XXX reply with errors and clean up
- CDEBUG(D_INODE, "Request list not empty!\n");
- }
-
- unlock_kernel();
- mntput(mds->mds_vfsmnt);
- mds->mds_sb = 0;
- kfree(mds->mds_fstype);
- lock_kernel();
-
- MOD_DEC_USE_COUNT;
- EXIT;
- return 0;
-}
-
-/* use obd ops to offer management infrastructure */
-static struct obd_ops mds_obd_ops = {
- o_setup: mds_setup,
- o_cleanup: mds_cleanup,
-};
-
-static int __init mds_init(void)
-{
- obd_register_type(&mds_obd_ops, LUSTRE_MDS_NAME);
- return 0;
-}
-
-static void __exit mds_exit(void)
-{
- obd_unregister_type(LUSTRE_MDS_NAME);
-}
-
-MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
-MODULE_DESCRIPTION("Lustre Metadata Server (MDS) v0.01");
-MODULE_LICENSE("GPL");
-
-
-// for testing (maybe this stays)
-EXPORT_SYMBOL(mds_queue_req);
-
-module_init(mds_init);
-module_exit(mds_exit);
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * linux/mds/mds_reint.c
- *
- * Lustre Metadata Server (mds) reintegration routines
- *
- * Copyright (C) 2002 Cluster File Systems, Inc.
- * author: Peter Braam <braam@clusterfs.com>
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- */
-
-// XXX - add transaction sequence numbers
-
-#define EXPORT_SYMTAB
-
-#include <linux/version.h>
-#include <linux/module.h>
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <linux/locks.h>
-#include <linux/ext2_fs.h>
-#include <linux/quotaops.h>
-#include <asm/unistd.h>
-#include <asm/uaccess.h>
-
-#define DEBUG_SUBSYSTEM S_MDS
-
-#include <linux/obd_support.h>
-#include <linux/obd.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
-#include <linux/lustre_mds.h>
-#include <linux/obd_class.h>
-
-extern struct ptlrpc_request *mds_prep_req(int size, int opcode, int namelen, char *name, int tgtlen, char *tgt);
-
-static int mds_reint_setattr(struct mds_update_record *rec, struct ptlrpc_request *req)
-{
- struct dentry *de;
-
- de = mds_fid2dentry(req->rq_obd, rec->ur_fid1, NULL);
- if (IS_ERR(de)) {
- req->rq_rephdr->status = -ESTALE;
- return 0;
- }
-
- CDEBUG(D_INODE, "ino %ld\n", de->d_inode->i_ino);
-
- /* a _really_ horrible hack to avoid removing the data stored
- in the block pointers; this data is the object id
- this will go into an extended attribute at some point.
- */
- if ( rec->ur_iattr.ia_valid & ATTR_SIZE ) {
- /* ATTR_SIZE would invoke truncate: clear it */
- rec->ur_iattr.ia_valid &= ~ATTR_SIZE;
- de->d_inode->i_size = rec->ur_iattr.ia_size;
- /* make sure _something_ gets set - so new inode
- goes to disk (probably won't work over XFS */
- if (!rec->ur_iattr.ia_valid & ATTR_MODE) {
- rec->ur_iattr.ia_valid |= ATTR_MODE;
- rec->ur_iattr.ia_mode = de->d_inode->i_mode;
- }
- }
- if ( de->d_inode->i_op->setattr ) {
- req->rq_rephdr->status =
- de->d_inode->i_op->setattr(de, &rec->ur_iattr);
- } else {
- req->rq_rephdr->status =
- inode_setattr(de->d_inode, &rec->ur_iattr);
- }
-
- l_dput(de);
- EXIT;
- return 0;
-}
-
-/*
- XXX nasty hack: store the object id in the first two
- direct block spots
-*/
-static inline void mds_store_objid(struct inode *inode, __u64 *id)
-{
- memcpy(&inode->u.ext2_i.i_data, id, sizeof(*id));
-}
-
-
-static int mds_reint_create(struct mds_update_record *rec,
- struct ptlrpc_request *req)
-{
- int type = rec->ur_mode & S_IFMT;
- struct dentry *de;
- struct mds_rep *rep = req->rq_rep.mds;
- struct dentry *dchild;
- int rc;
- ENTRY;
-
- de = mds_fid2dentry(req->rq_obd, rec->ur_fid1, NULL);
- if (IS_ERR(de)) {
- req->rq_rephdr->status = -ESTALE;
- EXIT;
- return 0;
- }
- CDEBUG(D_INODE, "ino %ld\n", de->d_inode->i_ino);
-
- dchild = lookup_one_len(rec->ur_name, de, rec->ur_namelen - 1);
- rc = PTR_ERR(dchild);
- if (IS_ERR(dchild)) {
- CERROR("child lookup error %d\n", rc);
- dput(de);
- req->rq_rephdr->status = -ESTALE;
- EXIT;
- return 0;
- }
-
- if (dchild->d_inode) {
- CERROR("child exists (dir %ld, name %s)\n",
- de->d_inode->i_ino, rec->ur_name);
- dput(de);
- req->rq_rephdr->status = -EEXIST;
- EXIT;
- return 0;
- }
-
- switch (type) {
- case S_IFREG: {
- rc = vfs_create(de->d_inode, dchild, rec->ur_mode);
-
- EXIT;
- break;
- }
- case S_IFDIR: {
- rc = vfs_mkdir(de->d_inode, dchild, rec->ur_mode);
- EXIT;
- break;
- }
- case S_IFLNK: {
- rc = vfs_symlink(de->d_inode, dchild, rec->ur_tgt);
- EXIT;
- break;
- }
- case S_IFCHR:
- case S_IFBLK:
- case S_IFIFO:
- case S_IFSOCK: {
- int rdev = rec->ur_id;
- rc = vfs_mknod(de->d_inode, dchild, rec->ur_mode, rdev);
- EXIT;
- break;
- }
- }
-
- req->rq_rephdr->status = rc;
- if (!rc) {
- if (type == S_IFREG)
- mds_store_objid(dchild->d_inode, &rec->ur_id);
- dchild->d_inode->i_atime = rec->ur_time;
- dchild->d_inode->i_ctime = rec->ur_time;
- dchild->d_inode->i_mtime = rec->ur_time;
- dchild->d_inode->i_uid = rec->ur_uid;
- dchild->d_inode->i_gid = rec->ur_gid;
- rep->ino = dchild->d_inode->i_ino;
- }
-
- dput(de);
- dput(dchild);
- EXIT;
- return 0;
-}
-
-static int mds_reint_unlink(struct mds_update_record *rec,
- struct ptlrpc_request *req)
-{
- struct dentry *de;
- struct dentry *dchild;
- int rc;
- ENTRY;
-
- de = mds_fid2dentry(req->rq_obd, rec->ur_fid1, NULL);
- if (IS_ERR(de)) {
- req->rq_rephdr->status = -ESTALE;
- EXIT;
- return 0;
- }
- CDEBUG(D_INODE, "ino %ld\n", de->d_inode->i_ino);
-
- dchild = lookup_one_len(rec->ur_name, de, rec->ur_namelen - 1);
- rc = PTR_ERR(dchild);
- if (IS_ERR(dchild)) {
- CERROR("child lookup error %d\n", rc);
- dput(de);
- req->rq_rephdr->status = -ESTALE;
- EXIT;
- return 0;
- }
-
- if (!dchild->d_inode) {
- CERROR("child doesn't exist (dir %ld, name %s\n",
- de->d_inode->i_ino, rec->ur_name);
- dput(de);
- req->rq_rephdr->status = -ESTALE;
- EXIT;
- return 0;
- }
-
- switch (dchild->d_inode->i_mode & S_IFMT) {
- case S_IFDIR:
- rc = vfs_rmdir(de->d_inode, dchild);
- EXIT;
- break;
- default:
- rc = vfs_unlink(de->d_inode, dchild);
-
- EXIT;
- break;
- }
-
- req->rq_rephdr->status = rc;
- dput(de);
- dput(dchild);
- EXIT;
- return 0;
-}
-
-static int mds_reint_link(struct mds_update_record *rec,
- struct ptlrpc_request *req)
-{
- struct dentry *de_src = NULL;
- struct dentry *de_tgt_dir = NULL;
- struct dentry *dchild = NULL;
- int rc;
- ENTRY;
-
- rc = -ESTALE;
- de_src = mds_fid2dentry(req->rq_obd, rec->ur_fid1, NULL);
- if (IS_ERR(de_src)) {
- EXIT;
- goto out_link;
- }
-
- de_tgt_dir = mds_fid2dentry(req->rq_obd, rec->ur_fid2, NULL);
- if (IS_ERR(de_tgt_dir)) {
- rc = -ESTALE;
- EXIT;
- goto out_link;
- }
-
- dchild = lookup_one_len(rec->ur_name, de_tgt_dir, rec->ur_namelen - 1);
- if (IS_ERR(dchild)) {
- CERROR("child lookup error %d\n", rc);
- req->rq_rephdr->status = -ESTALE;
- goto out_link;
- }
-
- if (dchild->d_inode) {
- CERROR("child exists (dir %ld, name %s\n",
- de_tgt_dir->d_inode->i_ino, rec->ur_name);
- EXIT;
- goto out_link;
- }
-
- rc = vfs_link(de_src, de_tgt_dir->d_inode, dchild);
-
- out_link:
- req->rq_rephdr->status = rc;
- l_dput(de_src);
- l_dput(de_tgt_dir);
- l_dput(dchild);
- EXIT;
- return 0;
-}
-
-
-static int mds_reint_rename(struct mds_update_record *rec,
- struct ptlrpc_request *req)
-{
- struct dentry *de_srcdir = NULL;
- struct dentry *de_tgtdir = NULL;
- struct dentry *de_old = NULL;
- struct dentry *de_new = NULL;
- int rc;
- ENTRY;
-
- rc = -ESTALE;
- de_srcdir = mds_fid2dentry(req->rq_obd, rec->ur_fid1, NULL);
- if (IS_ERR(de_srcdir)) {
- EXIT;
- goto out_rename;
- }
-
- de_tgtdir = mds_fid2dentry(req->rq_obd, rec->ur_fid2, NULL);
- if (IS_ERR(de_tgtdir)) {
- rc = -ESTALE;
- EXIT;
- goto out_rename;
- }
-
- de_old = lookup_one_len(rec->ur_name, de_srcdir, rec->ur_namelen - 1);
- if (IS_ERR(de_old)) {
- CERROR("child lookup error %d\n", rc);
- goto out_rename;
- }
-
- de_new = lookup_one_len(rec->ur_tgt, de_tgtdir, rec->ur_tgtlen - 1);
- if (IS_ERR(de_new)) {
- CERROR("child lookup error %d\n", rc);
- goto out_rename;
- }
-
- rc = vfs_rename(de_srcdir->d_inode, de_old, de_tgtdir->d_inode, de_new);
-
- out_rename:
- req->rq_rephdr->status = rc;
- l_dput(de_new);
- l_dput(de_old);
- l_dput(de_tgtdir);
- l_dput(de_srcdir);
- EXIT;
- return 0;
-}
-
-typedef int (*mds_reinter)(struct mds_update_record *, struct ptlrpc_request*);
-
-static mds_reinter reinters[REINT_MAX+1] = {
- [REINT_SETATTR] mds_reint_setattr,
- [REINT_CREATE] mds_reint_create,
- [REINT_UNLINK] mds_reint_unlink,
- [REINT_LINK] mds_reint_link,
- [REINT_RENAME] mds_reint_rename
-};
-
-int mds_reint_rec(struct mds_update_record *rec, struct ptlrpc_request *req)
-{
- int rc;
-
- if (rec->ur_opcode < 0 || rec->ur_opcode > REINT_MAX) {
- CERROR("opcode %d not valid\n",
- rec->ur_opcode);
- rc = req->rq_status = -EINVAL;
- return rc;
- }
-
- rc = mds_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- EXIT;
- CERROR("mds: out of memory\n");
- rc = req->rq_status = -ENOMEM;
- return rc;
- }
- req->rq_rephdr->seqno = req->rq_reqhdr->seqno;
-
- rc = reinters[rec->ur_opcode](rec, req);
- req->rq_status = rc;
-
- return rc;
-}
-
+++ /dev/null
-.Xrefs
-config.log
-config.status
-configure
-Makefile
-Makefile.in
-.deps
-TAGS
+++ /dev/null
-DEFS:=
-MODULE = obdclass
-modulefs_DATA = obdclass.o
-EXTRA_PROGRAMS = obdclass
-obdclass_SOURCES = genops.c proc_lustre.c class_obd.c sysctl.c
-
-include $(top_srcdir)/Rules
+++ /dev/null
-/*
- * An implementation of a loadable kernel mode driver providing
- * multiple kernel/user space bidirectional communications links.
- *
- * Author: Alan Cox <alan@cymru.net>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * Adapted to become the Linux 2.0 Coda pseudo device
- * Peter Braam <braam@maths.ox.ac.uk>
- * Michael Callahan <mjc@emmy.smith.edu>
- *
- * Changes for Linux 2.1
- * Copyright (c) 1997 Carnegie-Mellon University
- *
- * Redone again for Intermezzo
- * Copyright (c) 1998 Peter J. Braam
- *
- * Hacked up again for simulated OBD
- * Copyright (c) 1999 Stelias Computing, Inc.
- * (authors {pschwan,braam}@stelias.com)
- * Copyright (C) 1999 Seagate Technology, Inc.
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- *
- */
-
-#define EXPORT_SYMTAB
-#include <linux/config.h> /* for CONFIG_PROC_FS */
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/kmod.h> /* for request_module() */
-#include <linux/sched.h>
-#include <linux/lp.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/fcntl.h>
-#include <linux/delay.h>
-#include <linux/skbuff.h>
-#include <linux/proc_fs.h>
-#include <linux/fs.h>
-#include <linux/poll.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/poll.h>
-#include <asm/uaccess.h>
-#include <linux/miscdevice.h>
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include <linux/obd_support.h>
-#include <linux/obd_class.h>
-
-static int obd_init_magic;
-int obd_print_entry = 1;
-int obd_debug_level = ~0;
-long obd_memory = 0;
-struct obd_device obd_dev[MAX_OBD_DEVICES];
-struct list_head obd_types;
-
-/* opening /dev/obd */
-static int obd_class_open(struct inode * inode, struct file * file)
-{
- ENTRY;
-
- file->private_data = NULL;
- MOD_INC_USE_COUNT;
- EXIT;
- return 0;
-}
-
-/* closing /dev/obd */
-static int obd_class_release(struct inode * inode, struct file * file)
-{
- ENTRY;
-
- if (file->private_data)
- file->private_data = NULL;
-
- MOD_DEC_USE_COUNT;
- EXIT;
- return 0;
-}
-
-/*
- * support functions: we could use inter-module communication, but this
- * is more portable to other OS's
- */
-static struct obd_type *obd_search_type(char *nm)
-{
- struct list_head *tmp;
- struct obd_type *type;
- CDEBUG(D_INFO, "SEARCH %s\n", nm);
-
- tmp = &obd_types;
- while ( (tmp = tmp->next) != &obd_types ) {
- type = list_entry(tmp, struct obd_type, typ_chain);
- CDEBUG(D_INFO, "TYP %s\n", type->typ_name);
- if (strlen(type->typ_name) == strlen(nm) &&
- strcmp(type->typ_name, nm) == 0 ) {
- return type;
- }
- }
- return NULL;
-}
-
-static struct obd_type *obd_nm_to_type(char *nm)
-{
- struct obd_type *type = obd_search_type(nm);
-
-#ifdef CONFIG_KMOD
- if ( !type ) {
- if ( !request_module(nm) ) {
- CDEBUG(D_INFO, "Loaded module '%s'\n", nm);
- type = obd_search_type(nm);
- } else {
- CDEBUG(D_INFO, "Can't load module '%s'\n", nm);
- }
- }
-#endif
- return type;
-}
-
-/* to control /dev/obd */
-static int obd_class_ioctl (struct inode * inode, struct file * filp,
- unsigned int cmd, unsigned long arg)
-{
- /* NOTE this must be larger than any of the ioctl data structs */
- char buf[1024];
- struct obd_ioctl_data *data;
- struct obd_device *obd = filp->private_data;
- struct obd_conn conn;
- int err = 0;
- ENTRY;
-
- memset(buf, 0, sizeof(buf));
-
- if (!obd && cmd != OBD_IOC_DEVICE && cmd != TCGETS) {
- CERROR("OBD ioctl: No device\n");
- return -EINVAL;
- }
- if (obd_ioctl_getdata(buf, buf + 800, (void *)arg)) {
- CERROR("OBD ioctl: data error\n");
- return -EINVAL;
- }
- data = (struct obd_ioctl_data *)buf;
-
- switch (cmd) {
- case TCGETS: {
- EXIT;
- return -EINVAL;
- }
- case OBD_IOC_DEVICE: {
- CDEBUG(D_IOCTL, "\n");
- if (data->ioc_dev >= MAX_OBD_DEVICES ||
- data->ioc_dev < 0) {
- CERROR("OBD ioctl: DEVICE insufficient devices\n");
- return -EINVAL;
- }
- CDEBUG(D_IOCTL, "device %d\n", data->ioc_dev);
-
- filp->private_data = &obd_dev[data->ioc_dev];
- EXIT;
- return 0;
- }
-
- case OBD_IOC_ATTACH: {
- struct obd_type *type;
-
- ENTRY;
- /* have we attached a type to this device */
- if ( obd->obd_flags & OBD_ATTACHED ) {
- CERROR("OBD: Device %d already typed as %s.\n",
- obd->obd_minor, MKSTR(obd->obd_type->typ_name));
- return -EBUSY;
- }
-
- CDEBUG(D_IOCTL, "attach %s %s\n", MKSTR(data->ioc_inlbuf1),
- MKSTR(data->ioc_inlbuf2));
-
- /* find the type */
- type = obd_nm_to_type(data->ioc_inlbuf1);
- if ( !type ) {
- CERROR("OBD: unknown type dev %d\n", obd->obd_minor);
- return -EINVAL;
- }
-
- obd->obd_type = type;
- obd->obd_multi_count = 0;
- INIT_LIST_HEAD(&obd->obd_gen_clients);
-
- /* do the attach */
- if ( OBT(obd) && OBP(obd, attach) ) {
- err = OBP(obd, attach)(obd, sizeof(*data), data);
- }
-
- if ( err ) {
- obd->obd_type = NULL;
- EXIT;
- } else {
- obd->obd_flags |= OBD_ATTACHED;
- type->typ_refcnt++;
- CDEBUG(D_IOCTL, "OBD: dev %d attached type %s\n",
- obd->obd_minor, data->ioc_inlbuf1);
- obd->obd_proc_entry =
- proc_lustre_register_obd_device(obd);
- MOD_INC_USE_COUNT;
- EXIT;
- }
-
- return err;
- }
-
- case OBD_IOC_DETACH: {
- ENTRY;
- if (obd->obd_flags & OBD_SET_UP) {
- CERROR("OBD device %d still set up\n", obd->obd_minor);
- return -EBUSY;
- }
- if (! (obd->obd_flags & OBD_ATTACHED) ) {
- CERROR("OBD device %d not attached\n", obd->obd_minor);
- return -ENODEV;
- }
- if ( !list_empty(&obd->obd_gen_clients) ) {
- CERROR("OBD device %d has connected clients\n",
- obd->obd_minor);
- return -EBUSY;
- }
-
- if (obd->obd_proc_entry)
- proc_lustre_release_obd_device(obd);
-
- obd->obd_flags &= ~OBD_ATTACHED;
- obd->obd_type->typ_refcnt--;
- obd->obd_type = NULL;
- MOD_DEC_USE_COUNT;
- EXIT;
- return 0;
- }
-
- case OBD_IOC_SETUP: {
- ENTRY;
- /* have we attached a type to this device? */
- if (!(obd->obd_flags & OBD_ATTACHED)) {
- CERROR("Device %d not attached\n", obd->obd_minor);
- return -ENODEV;
- }
-
- /* has this been done already? */
- if ( obd->obd_flags & OBD_SET_UP ) {
- CERROR("Device %d already setup (type %s)\n",
- obd->obd_minor, obd->obd_type->typ_name);
- return -EBUSY;
- }
-
- if ( OBT(obd) && OBP(obd, setup) )
- err = OBP(obd, setup)(obd, sizeof(*data), data);
-
- if (!err) {
- obd->obd_type->typ_refcnt++;
- obd->obd_flags |= OBD_SET_UP;
- EXIT;
- }
-
- return err;
- }
- case OBD_IOC_CLEANUP: {
- ENTRY;
-
- if ( !(obd->obd_flags & OBD_SET_UP) ) {
- EXIT;
- return -EINVAL;
- }
-
- err = obd_cleanup(obd);
- if ( err ) {
- EXIT;
- return err;
- }
-
- obd->obd_flags &= ~OBD_SET_UP;
- obd->obd_type->typ_refcnt--;
- EXIT;
- return 0;
- }
-
- case OBD_IOC_CONNECT:
- {
- conn.oc_id = data->ioc_conn1;
- conn.oc_dev = obd;
-
- err = obd_connect(&conn);
-
- CDEBUG(D_IOCTL, "assigned connection %d\n", conn.oc_id);
- data->ioc_conn1 = conn.oc_id;
- if ( err )
- return err;
-
- return copy_to_user((int *)arg, data, sizeof(*data));
- }
-
- case OBD_IOC_DISCONNECT: {
- conn.oc_id = data->ioc_conn1;
- conn.oc_dev = obd;
-
- err = obd_disconnect(&conn);
- return err;
- }
-
- case OBD_IOC_DEC_USE_COUNT: {
- MOD_DEC_USE_COUNT;
- return 0;
- }
-
- case OBD_IOC_CREATE: {
- conn.oc_id = data->ioc_conn1;
- conn.oc_dev = obd;
-
- err = obd_create(&conn, &data->ioc_obdo1);
- if (err) {
- EXIT;
- return err;
- }
-
- err = copy_to_user((int *)arg, data, sizeof(*data));
- EXIT;
- return err;
- }
-
- case OBD_IOC_GETATTR: {
- conn.oc_id = data->ioc_conn1;
- conn.oc_dev = obd;
-
- err = obd_getattr(&conn, &data->ioc_obdo1);
- if (err) {
- EXIT;
- return err;
- }
-
- err = copy_to_user((int *)arg, data, sizeof(*data));
- EXIT;
- return err;
- }
-
- case OBD_IOC_SETATTR: {
- conn.oc_id = data->ioc_conn1;
- conn.oc_dev = obd;
-
- err = obd_setattr(&conn, &data->ioc_obdo1);
- if (err) {
- EXIT;
- return err;
- }
-
- err = copy_to_user((int *)arg, data, sizeof(*data));
- EXIT;
- return err;
- }
-
- case OBD_IOC_DESTROY: {
- conn.oc_id = data->ioc_conn1;
- conn.oc_dev = obd;
-
- err = obd_destroy(&conn, &data->ioc_obdo1);
- if (err) {
- EXIT;
- return err;
- }
-
- err = copy_to_user((int *)arg, data, sizeof(*data));
- EXIT;
- return err;
- }
-
-#if 0
- case OBD_IOC_SYNC: {
- struct oic_range_s *range = tmp_buf;
-
- if (!obd->obd_type)
- return -ENODEV;
-
- err = copy_from_user(range, (const void *)arg, sizeof(*range));
-
- if ( err ) {
- EXIT;
- return err;
- }
-
- if ( !OBT(obd) || !OBP(obd, sync) ) {
- err = -EOPNOTSUPP;
- EXIT;
- return err;
- }
-
- /* XXX sync needs to be tested/verified */
- err = OBP(obd, sync)(&conn, &range->obdo, range->count,
- range->offset);
-
- if ( err ) {
- EXIT;
- return err;
- }
-
- return put_user(err, (int *) arg);
- }
-
- case OBD_IOC_READ: {
- int err;
- struct oic_rw_s *rw_s = tmp_buf; /* read, write ioctl str */
-
- err = copy_from_user(rw_s, (int *)arg, sizeof(*rw_s));
- if ( err ) {
- EXIT;
- return err;
- }
-
- conn.oc_id = rw_s->conn_id;
-
- if ( !OBT(obd) || !OBP(obd, read) ) {
- err = -EOPNOTSUPP;
- EXIT;
- return err;
- }
-
-
- err = OBP(obd, read)(&conn, &rw_s->obdo, rw_s->buf,
- &rw_s->count, rw_s->offset);
-
- ODEBUG(&rw_s->obdo);
- CDEBUG(D_INFO, "READ: conn %d, count %Ld, offset %Ld, '%s'\n",
- rw_s->conn_id, rw_s->count, rw_s->offset, rw_s->buf);
- if ( err ) {
- EXIT;
- return err;
- }
-
- err = copy_to_user((int*)arg, &rw_s->count, sizeof(rw_s->count));
- EXIT;
- return err;
- }
-
- case OBD_IOC_WRITE: {
- struct oic_rw_s *rw_s = tmp_buf; /* read, write ioctl str */
-
- err = copy_from_user(rw_s, (int *)arg, sizeof(*rw_s));
- if ( err ) {
- EXIT;
- return err;
- }
-
- conn.oc_id = rw_s->conn_id;
-
- if ( !OBT(obd) || !OBP(obd, write) ) {
- err = -EOPNOTSUPP;
- return err;
- }
-
- CDEBUG(D_INFO, "WRITE: conn %d, count %Ld, offset %Ld, '%s'\n",
- rw_s->conn_id, rw_s->count, rw_s->offset, rw_s->buf);
-
- err = OBP(obd, write)(&conn, &rw_s->obdo, rw_s->buf,
- &rw_s->count, rw_s->offset);
- ODEBUG(&rw_s->obdo);
- if ( err ) {
- EXIT;
- return err;
- }
-
- err = copy_to_user((int *)arg, &rw_s->count,
- sizeof(rw_s->count));
- EXIT;
- return err;
- }
- case OBD_IOC_PREALLOCATE: {
- struct oic_prealloc_s *prealloc = tmp_buf;
-
- /* has this minor been registered? */
- if (!obd->obd_type)
- return -ENODEV;
-
- err = copy_from_user(prealloc, (int *)arg, sizeof(*prealloc));
- if (err)
- return -EFAULT;
-
- if ( !(obd->obd_flags & OBD_ATTACHED) ||
- !(obd->obd_flags & OBD_SET_UP)) {
- CDEBUG(D_IOCTL, "Device not attached or set up\n");
- return -ENODEV;
- }
-
- if ( !OBT(obd) || !OBP(obd, preallocate) )
- return -EOPNOTSUPP;
-
- conn.oc_id = prealloc->conn_id;
- err = OBP(obd, preallocate)(&conn, &prealloc->alloc,
- prealloc->ids);
- if ( err ) {
- EXIT;
- return err;
- }
-
- err =copy_to_user((int *)arg, prealloc, sizeof(*prealloc));
- EXIT;
- return err;
- }
- case OBD_IOC_STATFS: {
- struct statfs *tmp;
- unsigned int conn_id;
- struct statfs buf;
-
- /* has this minor been registered? */
- if (!obd->obd_type)
- return -ENODEV;
-
- tmp = (void *)arg + sizeof(unsigned int);
- get_user(conn_id, (int *) arg);
-
- if ( !OBT(obd) || !OBP(obd, statfs) )
- return -EOPNOTSUPP;
-
- conn.oc_id = conn_id;
- err = OBP(obd, statfs)(&conn, &buf);
- if ( err ) {
- EXIT;
- return err;
- }
- err = copy_to_user(tmp, &buf, sizeof(buf));
- EXIT;
- return err;
-
- }
- case OBD_IOC_COPY: {
- struct ioc_mv_s *mvdata = tmp_buf;
-
- if ( (!(obd->obd_flags & OBD_SET_UP)) ||
- (!(obd->obd_flags & OBD_ATTACHED))) {
- CDEBUG(D_IOCTL, "Device not attached or set up\n");
- return -ENODEV;
- }
-
- /* get main structure */
- err = copy_from_user(mvdata, (void *) arg, sizeof(*mvdata));
- if (err) {
- EXIT;
- return err;
- }
-
- if ( !OBT(obd) || !OBP(obd, copy) )
- return -EOPNOTSUPP;
-
- /* do the partition */
- CDEBUG(D_INFO, "Copy %d, type %s dst %Ld src %Ld\n", dev,
- obd->obd_type->typ_name, mvdata->dst.o_id,
- mvdata->src.o_id);
-
- conn.oc_id = mvdata->src_conn_id;
-
- err = OBP(obd, copy)(&conn, &mvdata->dst,
- &conn, &mvdata->src,
- mvdata->src.o_size, 0);
- return err;
- }
-
- case OBD_IOC_MIGR: {
- struct ioc_mv_s *mvdata = tmp_buf;
-
- if ( (!(obd->obd_flags & OBD_SET_UP)) ||
- (!(obd->obd_flags & OBD_ATTACHED))) {
- CDEBUG(D_IOCTL, "Device not attached or set up\n");
- return -ENODEV;
- }
-
- err = copy_from_user(mvdata, (void *) arg, sizeof(*mvdata));
- if (err) {
- EXIT;
- return err;
- }
-
- CDEBUG(D_INFO, "Migrate copying %d bytes\n", sizeof(*mvdata));
-
- if ( !OBT(obd) || !OBP(obd, migrate) )
- return -EOPNOTSUPP;
-
- /* do the partition */
- CDEBUG(D_INFO, "Migrate %d, type %s conn %d src %Ld dst %Ld\n",
- dev, obd->obd_type->typ_name, mvdata->src_conn_id,
- mvdata->src.o_id, mvdata->dst.o_id);
-
- conn.oc_id = mvdata->src_conn_id;
- err = OBP(obd, migrate)(&conn, &mvdata->dst, &mvdata->src,
- mvdata->src.o_size, 0);
-
- return err;
- }
- case OBD_IOC_PUNCH: {
- struct oic_rw_s *rw_s = tmp_buf; /* read, write ioctl str */
-
- err = copy_from_user(rw_s, (int *)arg, sizeof(*rw_s));
- if ( err ) {
- EXIT;
- return err;
- }
-
- conn.oc_id = rw_s->conn_id;
-
- if ( !OBT(obd) || !OBP(obd, punch) ) {
- err = -EOPNOTSUPP;
- return err;
- }
-
- CDEBUG(D_INFO, "PUNCH: conn %d, count %Ld, offset %Ld\n",
- rw_s->conn_id, rw_s->count, rw_s->offset);
- err = OBP(obd, punch)(&conn, &rw_s->obdo, rw_s->count,
- rw_s->offset);
- ODEBUG(&rw_s->obdo);
- if ( err ) {
- EXIT;
- return err;
- }
- EXIT;
- return err;
- }
-
- default: {
- struct obd_type *type;
- struct oic_generic input;
- char *nm;
- void *karg;
-
- /* get data structures */
- err = copy_from_user(&input, (void *)arg, sizeof(input));
- if ( err ) {
- EXIT;
- return err;
- }
-
- err = getdata(input.att_typelen + 1, &input.att_type);
- if ( err ) {
- EXIT;
- return err;
- }
-
- /* find the type */
- nm = input.att_type;
- type = obd_nm_to_type(nm);
-#ifdef CONFIG_KMOD
- if ( !type ) {
- if ( !request_module(nm) ) {
- CDEBUG(D_INFO, "Loaded module '%s'\n", nm);
- type = obd_nm_to_type(nm);
- } else {
- CDEBUG(D_INFO, "Can't load module '%s'\n", nm);
- }
- }
-#endif
- OBD_FREE(input.att_type, input.att_typelen + 1);
- if ( !type ) {
- CERROR("unknown obd type dev %d\n", dev);
- EXIT;
- return -EINVAL;
- }
-
- if ( !type->typ_ops || !type->typ_ops->o_iocontrol ) {
- EXIT;
- return -EOPNOTSUPP;
- }
- conn.oc_id = input.att_connid;
-
- CDEBUG(D_INFO, "Calling ioctl %x for type %s, len %d\n",
- cmd, type->typ_name, input.att_datalen);
-
- /* get the generic data */
- karg = input.att_data;
- err = getdata(input.att_datalen, &karg);
- if ( err ) {
- EXIT;
- return err;
- }
-
- err = type->typ_ops->o_iocontrol(cmd, &conn, input.att_datalen,
- karg, input.att_data);
- OBD_FREE(karg, input.att_datalen);
-
- EXIT;
- return err;
- }
-#endif
- default:
- return -EINVAL;
-
- }
-} /* obd_class_ioctl */
-
-
-/* Driver interface done, utility functions follow */
-int obd_register_type(struct obd_ops *ops, char *nm)
-{
- struct obd_type *type;
-
- if (obd_init_magic != 0x11223344) {
- CERROR("bad magic for type\n");
- EXIT;
- return -EINVAL;
- }
-
- if ( obd_nm_to_type(nm) ) {
- CDEBUG(D_IOCTL, "Type %s already registered\n", nm);
- EXIT;
- return -EEXIST;
- }
-
- OBD_ALLOC(type, sizeof(*type));
- if ( !type ) {
- EXIT;
- return -ENOMEM;
- }
- memset(type, 0, sizeof(*type));
- INIT_LIST_HEAD(&type->typ_chain);
- MOD_INC_USE_COUNT;
- list_add(&type->typ_chain, obd_types.next);
- type->typ_ops = ops;
- type->typ_name = nm;
- EXIT;
- return 0;
-}
-
-int obd_unregister_type(char *nm)
-{
- struct obd_type *type = obd_nm_to_type(nm);
-
- if ( !type ) {
- MOD_DEC_USE_COUNT;
- CERROR("unknown obd type\n");
- EXIT;
- return -EINVAL;
- }
-
- if ( type->typ_refcnt ) {
- MOD_DEC_USE_COUNT;
- CERROR("type %s has refcount (%d)\n", nm, type->typ_refcnt);
- EXIT;
- return -EBUSY;
- }
-
- list_del(&type->typ_chain);
- OBD_FREE(type, sizeof(*type));
- MOD_DEC_USE_COUNT;
- return 0;
-} /* obd_unregister_type */
-
-/* declare character device */
-static struct file_operations obd_psdev_fops = {
- ioctl: obd_class_ioctl, /* ioctl */
- open: obd_class_open, /* open */
- release: obd_class_release, /* release */
-};
-
-/* modules setup */
-#define OBD_MINOR 241
-static struct miscdevice obd_psdev = {
- OBD_MINOR,
- "obd_psdev",
- &obd_psdev_fops
-};
-
-int init_obd(void)
-{
- int err;
- int i;
-
- printk(KERN_INFO "OBD class driver v0.01, braam@stelias.com\n");
-
- INIT_LIST_HEAD(&obd_types);
-
- if ( (err = misc_register(&obd_psdev)) ) {
- CERROR("cannot register %d err %d\n", OBD_MINOR, err);
- return -EIO;
- }
-
- for (i = 0; i < MAX_OBD_DEVICES; i++) {
- memset(&(obd_dev[i]), 0, sizeof(obd_dev[i]));
- obd_dev[i].obd_minor = i;
- INIT_LIST_HEAD(&obd_dev[i].obd_gen_clients);
- }
-
- err = obd_init_obdo_cache();
- if (err)
- return err;
- obd_sysctl_init();
- obd_init_magic = 0x11223344;
- return 0;
-}
-
-EXPORT_SYMBOL(obd_register_type);
-EXPORT_SYMBOL(obd_unregister_type);
-
-EXPORT_SYMBOL(obd_print_entry);
-EXPORT_SYMBOL(obd_debug_level);
-EXPORT_SYMBOL(obd_dev);
-
-EXPORT_SYMBOL(gen_connect);
-EXPORT_SYMBOL(gen_client);
-EXPORT_SYMBOL(gen_cleanup);
-EXPORT_SYMBOL(gen_disconnect);
-EXPORT_SYMBOL(gen_copy_data);
-EXPORT_SYMBOL(obdo_cachep);
-
-/* EXPORT_SYMBOL(gen_multi_attach); */
-EXPORT_SYMBOL(gen_multi_setup);
-EXPORT_SYMBOL(gen_multi_cleanup);
-EXPORT_SYMBOL(obd_memory);
-
-#ifdef MODULE
-int init_module(void)
-{
- return init_obd();
-}
-
-void cleanup_module(void)
-{
- int i;
- ENTRY;
-
- misc_deregister(&obd_psdev);
- for (i = 0; i < MAX_OBD_DEVICES; i++) {
- struct obd_device *obd = &obd_dev[i];
- if ( obd->obd_type &&
- (obd->obd_flags & OBD_SET_UP) &&
- OBT(obd) && OBP(obd, detach) ) {
- /* XXX should this call generic detach otherwise? */
- OBP(obd, detach)(obd);
- }
- }
-
- obd_cleanup_obdo_cache();
- obd_sysctl_clean();
- CDEBUG(D_MALLOC, "CLASS mem used %ld\n", obd_memory);
- obd_init_magic = 0;
- EXIT;
-}
-#endif
+++ /dev/null
-/*
- * linux/fs/ext2_obd/sim_obd.c
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * These are the only exported functions; they provide the simulated object-
- * oriented disk.
- *
- */
-
-#include <linux/mm.h>
-#include <linux/pagemap.h>
-#include <linux/fs.h>
-#include <linux/sched.h>
-#include <asm/uaccess.h>
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include <linux/obd_support.h>
-#include <linux/obd_class.h>
-
-extern struct obd_device obd_dev[MAX_OBD_DEVICES];
-kmem_cache_t *obdo_cachep = NULL;
-
-int obd_init_obdo_cache(void)
-{
- ENTRY;
- if (obdo_cachep == NULL) {
- CDEBUG(D_CACHE, "allocating obdo_cache\n");
- obdo_cachep = kmem_cache_create("obdo_cache",
- sizeof(struct obdo),
- 0, SLAB_HWCACHE_ALIGN,
- NULL, NULL);
- if (obdo_cachep == NULL) {
- EXIT;
- return -ENOMEM;
- } else {
- CDEBUG(D_CACHE, "allocated cache at %p\n", obdo_cachep);
- }
- } else {
- CDEBUG(D_CACHE, "using existing cache at %p\n", obdo_cachep);
- }
- EXIT;
- return 0;
-}
-
-void obd_cleanup_obdo_cache(void)
-{
- ENTRY;
- if (obdo_cachep != NULL) {
- CDEBUG(D_CACHE, "destroying obdo_cache at %p\n", obdo_cachep);
- if (kmem_cache_destroy(obdo_cachep))
- CERROR("unable to free cache\n");
- } else
- CERROR("called with NULL cache pointer\n");
-
- obdo_cachep = NULL;
- EXIT;
-}
-
-
-/* map connection to client */
-struct obd_client *gen_client(const struct obd_conn *conn)
-{
- struct obd_device * obddev = conn->oc_dev;
- struct list_head * lh, * next;
- struct obd_client * cli;
-
- lh = next = &obddev->obd_gen_clients;
- while ((lh = lh->next) != &obddev->obd_gen_clients) {
- cli = list_entry(lh, struct obd_client, cli_chain);
-
- if (cli->cli_id == conn->oc_id)
- return cli;
- }
-
- return NULL;
-} /* obd_client */
-
-
-/* a connection defines a context in which preallocation can be managed. */
-int gen_connect (struct obd_conn *conn)
-{
- struct obd_client * cli;
-
- OBD_ALLOC(cli, sizeof(struct obd_client));
- if ( !cli ) {
- CERROR("no memory! (minor %d)\n", conn->oc_dev->obd_minor);
- return -ENOMEM;
- }
-
- INIT_LIST_HEAD(&cli->cli_prealloc_inodes);
- /* XXX this should probably spinlocked? */
- cli->cli_id = ++conn->oc_dev->obd_gen_last_id;
- cli->cli_prealloc_quota = 0;
- cli->cli_obd = conn->oc_dev;
- list_add(&(cli->cli_chain), conn->oc_dev->obd_gen_clients.prev);
-
- CDEBUG(D_INFO, "connect: new ID %u\n", cli->cli_id);
- conn->oc_id = cli->cli_id;
- return 0;
-} /* gen_obd_connect */
-
-
-int gen_disconnect(struct obd_conn *conn)
-{
- struct obd_client * cli;
- ENTRY;
-
- if (!(cli = gen_client(conn))) {
- CDEBUG(D_IOCTL, "disconnect: attempting to free "
- "nonexistent client %u\n", conn->oc_id);
- return -EINVAL;
- }
-
-
- list_del(&(cli->cli_chain));
- OBD_FREE(cli, sizeof(struct obd_client));
-
- CDEBUG(D_INFO, "disconnect: ID %u\n", conn->oc_id);
-
- EXIT;
- return 0;
-} /* gen_obd_disconnect */
-
-
-/*
- * raid1 defines a number of connections to child devices,
- * used to make calls to these devices.
- * data holds nothing
- */
-int gen_multi_setup(struct obd_device *obddev, uint32_t len, void *data)
-{
- int i;
-
- for (i = 0 ; i < obddev->obd_multi_count ; i++ ) {
- int rc;
- struct obd_conn *ch_conn = &obddev->obd_multi_conn[i];
- rc = OBP(ch_conn->oc_dev, connect)(ch_conn);
-
- if ( rc != 0 ) {
- int j;
-
- for (j = --i; j >= 0; --j) {
- ch_conn = &obddev->obd_multi_conn[i];
- OBP(ch_conn->oc_dev, disconnect)(ch_conn);
- }
- return -EINVAL;
- }
- }
- return 0;
-}
-
-
-#if 0
-int gen_multi_attach(struct obd_device *obddev, int len, void *data)
-{
- int i;
- int count;
- struct obd_device *rdev = obddev->obd_multi_dev[0];
-
- count = len/sizeof(int);
- obddev->obd_multi_count = count;
- for (i=0 ; i<count ; i++) {
- rdev = &obd_dev[*((int *)data + i)];
- rdev = rdev + 1;
- CDEBUG(D_INFO, "OBD RAID1: replicator %d is of type %s\n", i,
- (rdev + i)->obd_type->typ_name);
- }
- return 0;
-}
-#endif
-
-
-/*
- * remove all connections to this device
- * close all connections to lower devices
- * needed for forced unloads of OBD client drivers
- */
-int gen_multi_cleanup(struct obd_device *obddev)
-{
- int i;
-
- for (i = 0 ; i < obddev->obd_multi_count ; i++ ) {
- struct obd_conn *ch_conn = &obddev->obd_multi_conn[i];
- int rc;
- rc = OBP(ch_conn->oc_dev, disconnect)(ch_conn);
-
- if ( rc != 0 ) {
- CERROR("disconnect failure %d\n",
- ch_conn->oc_dev->obd_minor);
- }
- }
- return 0;
-} /* gen_multi_cleanup_device */
-
-
-/*
- * forced cleanup of the device:
- * - remove connections from the device
- * - cleanup the device afterwards
- */
-int gen_cleanup(struct obd_device * obddev)
-{
- struct list_head * lh, * tmp;
- struct obd_client * cli;
-
- ENTRY;
-
- lh = tmp = &obddev->obd_gen_clients;
- while ((tmp = tmp->next) != lh) {
- cli = list_entry(tmp, struct obd_client, cli_chain);
- CDEBUG(D_INFO, "Disconnecting obd_connection %d, at %p\n",
- cli->cli_id, cli);
- }
- return 0;
-} /* sim_cleanup_device */
-
-void ___wait_on_page(struct page *page)
-{
- struct task_struct *tsk = current;
- DECLARE_WAITQUEUE(wait, tsk);
-
- add_wait_queue(&page->wait, &wait);
- do {
- run_task_queue(&tq_disk);
- set_task_state(tsk, TASK_UNINTERRUPTIBLE);
- if (!PageLocked(page))
- break;
- schedule();
- } while (PageLocked(page));
- tsk->state = TASK_RUNNING;
- remove_wait_queue(&page->wait, &wait);
-}
-
-void lck_page(struct page *page)
-{
- while (TryLockPage(page))
- ___wait_on_page(page);
-}
-
-int gen_copy_data(struct obd_conn *dst_conn, struct obdo *dst,
- struct obd_conn *src_conn, struct obdo *src,
- obd_size count, obd_off offset)
-{
- struct page *page;
- unsigned long index = 0;
- int err = 0;
-
- ENTRY;
- CDEBUG(D_INFO, "src: ino %Ld blocks %Ld, size %Ld, dst: ino %Ld\n",
- src->o_id, src->o_blocks, src->o_size, dst->o_id);
- page = alloc_page(GFP_USER);
- if ( !page ) {
- EXIT;
- return -ENOMEM;
- }
-
- lck_page(page);
-
- /* XXX with brw vector I/O, we could batch up reads and writes here,
- * all we need to do is allocate multiple pages to handle the I/Os
- * and arrays to handle the request parameters.
- */
- while (index < ((src->o_size + PAGE_SIZE - 1) >> PAGE_SHIFT)) {
- obd_count num_oa = 1;
- obd_count num_buf = 1;
- obd_size brw_count = PAGE_SIZE;
- obd_off brw_offset = (page->index) << PAGE_SHIFT;
- obd_flag flagr = 0;
- obd_flag flagw = OBD_BRW_CREATE;
-
- page->index = index;
- err = OBP(src_conn->oc_dev, brw)(READ, src_conn, num_oa, &src,
- &num_buf, &page, &brw_count,
- &brw_offset, &flagr);
-
- if ( err ) {
- EXIT;
- break;
- }
- CDEBUG(D_INFO, "Read page %ld ...\n", page->index);
-
- err = OBP(dst_conn->oc_dev, brw)(WRITE, dst_conn, num_oa, &dst,
- &num_buf, &page, &brw_count,
- &brw_offset, &flagw);
-
- /* XXX should handle dst->o_size, dst->o_blocks here */
- if ( err ) {
- EXIT;
- break;
- }
-
- CDEBUG(D_INFO, "Wrote page %ld ...\n", page->index);
-
- index++;
- }
- dst->o_size = src->o_size;
- dst->o_blocks = src->o_blocks;
- dst->o_valid |= (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS);
- obd_unlock_page(page);
- __free_page(page);
-
- EXIT;
- return err;
-}
+++ /dev/null
-/*
- * pack.c
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- *
- */
-
-
-#include <linux/mm.h>
-#include <linux/pagemap.h>
-#include <linux/fs.h>
-#include <linux/sched.h>
-#include <asm/uaccess.h>
-
-#include <linux/obd_support.h>
-#include <linux/obd_class.h>
-#include <linux/obd_lib.h>
-
-
-void obd_req_pack(char **buf, int max, struct obd_req *req)
-{
- char *ptr;
-
- ptr = *buf;
-
- LOGP(ptr, struct obdo, obd req->oa);
- LOGP(ptr, struct obd_conn, obd req->obd);
-
-}
+++ /dev/null
-/* proc_lustre.c manages /proc/lustre/obd.
- *
- * Copyright (c) 2001 Rumi Zahir <rumi.zahir@intel.com>
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * OBD devices materialize in /proc as a directory:
- * /proc/lustre/obd/<number>
- * when /dev/obd<number> is opened. When the device is closed, the
- * directory entry disappears.
- *
- * For each open OBD device, code in this file also creates a file
- * named <status>. "cat /proc/lustre/obd/<number>/status" gives
- * information about the OBD device's configuration.
- * The class driver manages the "status" entry.
- *
- * Other logical drivers can create their own entries. For example,
- * the obdtrace driver creates /proc/lustre/obd/<obdid>/stats entry.
- *
- * This file defines three functions
- * proc_lustre_register_obd_device()
- * proc_lustre_release_obd_device()
- * proc_lustre_remove_obd_entry()
- * that dynamically create/delete /proc/lustre/obd entries:
- *
- * proc_lustre_register_obd_device() registers an obd device,
- * and, if this is the first OBD device, creates /proc/lustre/obd.
- *
- * proc_lustre_release_obd_device() removes device information
- * from /proc/lustre/obd, and if this is the last OBD device
- * removes /proc/lustre/obd.
- *
- * proc_lustre_remove_obd_entry() removes a
- * /proc/lustre/obd/<obdid>/ entry by name. This is the only
- * function that is exported to other modules.
- */
-
-#define EXPORT_SYMTAB
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/version.h>
-#include <linux/proc_fs.h>
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include <linux/obd_support.h>
-#include <linux/obd_class.h>
-
-#ifdef CONFIG_PROC_FS
-extern struct proc_dir_entry proc_root;
-
-static struct proc_dir_entry *proc_lustre_dir_entry = 0;
-static struct proc_dir_entry *proc_lustre_obd_dir_entry = 0;
-
-static struct proc_dir_entry *
-proc_lustre_mkdir(const char* dname, struct proc_dir_entry *parent)
-{
- struct proc_dir_entry *child_dir_entry;
-
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,3,0) /*0x20300 */
- child_dir_entry = proc_mkdir(dname, parent);
-#else
- child_dir_entry = create_proc_entry(dname,
- S_IFDIR | S_IRUGO | S_IXUGO,
- &proc_root);
-#endif
- if (!child_dir_entry)
- CERROR("lustre: failed to create /proc entry %s\n", dname);
-
- return child_dir_entry;
-}
-
-static int read_lustre_status(char *page, char **start, off_t offset,
- int count, int *eof, void *data)
-{
- struct obd_device * obddev = (struct obd_device *) data;
- int p;
-
- p = sprintf(&page[0], "/dev/obd%d: ", obddev->obd_minor);
-
- if (obddev->obd_refcnt==0) {
- /* obd is unused */
- p += sprintf(&page[p], "open but unused\n");
- }
- else { /* obd in use */
- p += sprintf(&page[p], "refcnt(%d)", obddev->obd_refcnt);
-
- if (obddev->obd_flags & OBD_ATTACHED) {
- p += sprintf(&page[p], ", attached(%s)",
- obddev->obd_type->typ_name);
- }
-
- if (obddev->obd_flags & OBD_SET_UP) {
- struct dentry *my_dentry;
- struct vfsmount *root_mnt;
- char *path;
- char *pathpage;
-
- if (!(pathpage = (char*) __get_free_page(GFP_KERNEL)))
- return -ENOMEM;
-
- my_dentry = obddev->obd_fsname.dentry;
- root_mnt = mntget(current->fs->rootmnt);
- path = d_path(my_dentry,root_mnt,pathpage,PAGE_SIZE);
-
- p += sprintf(&page[p], ", setup(%s)", path);
-
- free_page((unsigned long) pathpage);
- }
-
- /* print connections */
- {
- struct list_head * lh;
- struct obd_client * cli=0;
-
- lh = &obddev->obd_gen_clients;
- while ((lh = lh->next) != &obddev->obd_gen_clients) {
- p += sprintf(&page[p],
- ((cli==0) ? ", connections(" : ",") );
- cli = list_entry(lh, struct obd_client, cli_chain);
- p += sprintf(&page[p], "%d", cli->cli_id);
- } /* while */
- if (cli!=0) { /* there was at least one client */
- p += sprintf(&page[p], ")");
- }
- }
-
- p += sprintf(&page[p], "\n");
- }
-
- /* Compute eof and return value */
-
- if (offset + count >= p) {
- *eof=1;
- return (p - offset);
- }
- return count;
-}
-
-struct proc_dir_entry *
-proc_lustre_register_obd_device(struct obd_device *obd)
-{
- char obdname[32];
- struct proc_dir_entry *obd_dir;
- struct proc_dir_entry *obd_status = 0;
-
- if (!proc_lustre_dir_entry) {
- proc_lustre_dir_entry =
- proc_lustre_mkdir("lustre", &proc_root);
- if (!proc_lustre_dir_entry)
- return 0;
-
- proc_lustre_obd_dir_entry =
- proc_lustre_mkdir("obd", proc_lustre_dir_entry);
- if (!proc_lustre_obd_dir_entry)
- return 0;
- }
-
- sprintf(obdname, "%d", obd->obd_minor);
-
- obd_dir = proc_lustre_mkdir(obdname, proc_lustre_obd_dir_entry);
-
- if (obd_dir)
- obd_status = create_proc_entry("status", S_IRUSR | S_IFREG, obd_dir);
-
- if (obd_status) {
- obd_status->read_proc = read_lustre_status;
- obd_status->data = (void*) obd;
- }
-
- return obd_dir;
-}
-
-void proc_lustre_remove_obd_entry(const char* name, struct obd_device *obd)
-{
- struct proc_dir_entry *obd_entry = 0;
- struct proc_dir_entry *obd_dir = obd->obd_proc_entry;
-
- remove_proc_entry(name, obd_dir);
-
- while (obd_dir->subdir==0) {
- /* if we removed last entry in this directory,
- * then remove parent directory unless this
- * is /proc itself
- */
- if (obd_dir == &proc_root)
- break;
-
- obd_entry = obd_dir;
- obd_dir = obd_dir->parent;
-
- /* If /proc/lustre/obd/XXX or /proc/lustre/obd or
- * /proc/lustre are being removed, then reset
- * internal variables
- */
-
- if (obd_entry == obd->obd_proc_entry)
- obd->obd_proc_entry=0; /* /proc/lustre/obd/XXX */
- else
- if (obd_entry == proc_lustre_obd_dir_entry)
- proc_lustre_obd_dir_entry=0;
- else
- if (obd_entry == proc_lustre_dir_entry)
- proc_lustre_dir_entry=0;
-
- remove_proc_entry(obd_entry->name, obd_dir);
- }
-}
-
-void proc_lustre_release_obd_device(struct obd_device *obd)
-{
- proc_lustre_remove_obd_entry("status", obd);
-}
-
-
-#else /* CONFIG_PROC_FS */
-
-struct proc_dir_entry *proc_lustre_register_obd_device(struct obd_device *obd)
-{
- return 0;
-}
-
-void proc_lustre_remove_obd_entry(const char* name, struct obd_device *obd) {}
-void proc_lustre_release_obd_device(struct obd_device *obd) {}
-
-#endif /* CONFIG_PROC_FS */
-
-EXPORT_SYMBOL(proc_lustre_remove_obd_entry);
-
-
-
-
-
-
-
-
-
-
-
+++ /dev/null
-/*
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- */
-
-#include <linux/module.h>
-#include <linux/autoconf.h>
-#include <linux/sysctl.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/sysctl.h>
-#include <linux/swapctl.h>
-#include <linux/proc_fs.h>
-#include <linux/slab.h>
-#include <linux/stat.h>
-#include <linux/ctype.h>
-#include <asm/bitops.h>
-#include <asm/segment.h>
-#include <asm/uaccess.h>
-#include <linux/utsname.h>
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include <linux/obd_support.h>
-
-struct ctl_table_header *obd_table_header = NULL;
-
-static int vars[2];
-static int index = 0;
-
-static int obd_sctl_vars( ctl_table * table, int write, struct file *
- filp, void * buffer, size_t * lenp );
-static int obd_sctl_reset( ctl_table * table, int write, struct file
- * filp, void * buffer, size_t * lenp );
-
-#define OBD_SYSCTL 300
-
-#define OBD_DEBUG 1 /* control debugging */
-#define OBD_ENTRY 2 /* control enter/leave pattern */
-#define OBD_TIMEOUT 3 /* timeout on upcalls to become intrble */
-#define OBD_HARD 4 /* mount type "hard" or "soft" */
-#define OBD_VARS 5
-#define OBD_INDEX 6
-#define OBD_RESET 7
-
-#define OBD_VARS_SLOT 2
-
-static ctl_table obd_table[] = {
- {OBD_DEBUG, "debug", &obd_debug_level, sizeof(int), 0644, NULL, &proc_dointvec},
- {OBD_ENTRY, "trace", &obd_print_entry, sizeof(int), 0644, NULL, &proc_dointvec},
- {OBD_VARS, "vars", &vars[0], sizeof(int), 0644, NULL, &proc_dointvec},
- {OBD_INDEX, "index", &index, sizeof(int), 0644, NULL, &obd_sctl_vars},
- {OBD_RESET, "reset", NULL, 0, 0644, NULL, &obd_sctl_reset},
- { 0 }
-};
-
-static ctl_table parent_table[] = {
- {OBD_SYSCTL, "obd", NULL, 0, 0555, obd_table},
- {0}
-};
-
-void obd_sysctl_init (void)
-{
-#ifdef CONFIG_SYSCTL
- if ( !obd_table_header )
- obd_table_header = register_sysctl_table(parent_table, 0);
-#endif
-}
-
-void obd_sysctl_clean (void)
-{
-#ifdef CONFIG_SYSCTL
- if ( obd_table_header )
- unregister_sysctl_table(obd_table_header);
- obd_table_header = NULL;
-#endif
-}
-
-int obd_sctl_reset (ctl_table * table, int write,
- struct file * filp, void * buffer,
- size_t * lenp)
-{
- if ( write ) {
- /* do something here */
- vars[0]=0;
- vars[1]=0;
- }
-
- *lenp = 0;
- return 0;
-}
-
-int obd_sctl_vars (ctl_table * table, int write,
- struct file * filp, void * buffer,
- size_t * lenp)
-{
- int rc;
-
- rc = proc_dointvec(table, write, filp, buffer, lenp);
-
- if ( rc )
- return rc;
-
- if ( index < 0 || index > 1 ) {
- CERROR("Illegal index %d!\n", index);
- index = 0;
- } else {
- obd_table[OBD_VARS_SLOT].data = &vars[index];
- }
-
- return rc;
-}
-
-
-
-
+++ /dev/null
-.Xrefs
-config.log
-config.status
-configure
-Makefile
-Makefile.in
-.deps
-TAGS
+++ /dev/null
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-DEFS:=
-MODULE = obdfilter
-modulefs_DATA = obdfilter.o
-EXTRA_PROGRAMS = obdfilter
-
-EXT2C = filter.c
-obdfilter_SOURCES = filter.c
-
-include $(top_srcdir)/Rules
-
+++ /dev/null
-/*
- * linux/fs/ext2_obd/ext2_obd.c
- *
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * by Peter Braam <braam@clusterfs.com>
- */
-
-#define EXPORT_SYMTAB
-
-#include <linux/version.h>
-#include <linux/module.h>
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <linux/locks.h>
-#include <linux/ext2_fs.h>
-#include <linux/quotaops.h>
-#include <asm/unistd.h>
-
-#define DEBUG_SUBSYSTEM S_FILTER
-
-#include <linux/obd_support.h>
-#include <linux/obd_class.h>
-#include <linux/obd_ext2.h>
-
-extern struct obd_device obd_dev[MAX_OBD_DEVICES];
-long filter_memory;
-
-#define FILTER_ROOTINO 2
-
-#define S_SHIFT 12
-
-static char * obd_type_by_mode[S_IFMT >> S_SHIFT] = {
- [0] "",
- [S_IFREG >> S_SHIFT] "R",
- [S_IFDIR >> S_SHIFT] "D",
- [S_IFCHR >> S_SHIFT] "C",
- [S_IFBLK >> S_SHIFT] "B",
- [S_IFIFO >> S_SHIFT] "F",
- [S_IFSOCK >> S_SHIFT] "S",
- [S_IFLNK >> S_SHIFT] "L"
-};
-
-static void filter_id(char *buf, obd_id id, obd_mode mode)
-{
- sprintf(buf, "O/%s/%Ld", obd_type_by_mode[(mode & S_IFMT) >> S_SHIFT],
- id);
-}
-
-static struct file *filter_parent(obd_id id, obd_mode mode)
-{
- char path[64];
- struct file *file;
- sprintf(path, "O/%s", obd_type_by_mode[(mode & S_IFMT) >> S_SHIFT]);
-
- file = filp_open(path, O_RDONLY, 0);
- return file;
-}
-
-void push_ctxt(struct run_ctxt *save, struct run_ctxt *new)
-{
- save->fs = get_fs();
- save->pwd = dget(current->fs->pwd);
- save->pwdmnt = mntget(current->fs->pwdmnt);
-
- set_fs(new->fs);
- set_fs_pwd(current->fs, new->pwdmnt, new->pwd);
-}
-
-void pop_ctxt(struct run_ctxt *saved)
-{
- set_fs(saved->fs);
- set_fs_pwd(current->fs, saved->pwdmnt, saved->pwd);
-
- dput(saved->pwd);
- mntput(saved->pwdmnt);
-}
-
-static int simple_mkdir(struct dentry *dir, char *name, int mode)
-{
- struct dentry *dchild;
- int err;
- ENTRY;
-
- dchild = lookup_one_len(name, dir, strlen(name));
- if (IS_ERR(dchild)) {
- EXIT;
- return PTR_ERR(dchild);
- }
-
- if (dchild->d_inode) {
- dput(dchild);
- EXIT;
- return -EEXIST;
- }
-
- err = vfs_mkdir(dir->d_inode, dchild, mode);
- dput(dchild);
-
- EXIT;
- return err;
-}
-
-static int simple_unlink(struct dentry *dir, char *name)
-{
- struct dentry *dchild;
- int err;
- ENTRY;
-
- dchild = lookup_one_len(name, dir, strlen(name));
- if (IS_ERR(dchild)) {
- EXIT;
- return PTR_ERR(dchild);
- }
-
- if (!dchild->d_inode) {
- dput(dchild);
- EXIT;
- return -ENOENT;
- }
-
- err = vfs_unlink(dir->d_inode, dchild);
- dput(dchild);
-
- EXIT;
- return err;
-}
-
-static void filter_prep(struct obd_device *obddev)
-{
- struct run_ctxt saved;
- struct file *file;
- struct inode *inode;
- loff_t off;
- long rc;
- char rootid[128];
- __u64 lastino = 2;
-
- push_ctxt(&saved, &obddev->u.filter.fo_ctxt);
- rc = simple_mkdir(current->fs->pwd, "O", 0700);
- rc = simple_mkdir(current->fs->pwd, "P", 0700);
- rc = simple_mkdir(current->fs->pwd, "D", 0700);
- file = filp_open("O", O_RDONLY, 0);
- if (!file || IS_ERR(file)) {
- CERROR("cannot open O\n");
- goto out;
- }
- rc = simple_mkdir(file->f_dentry, "R", 0700); /* regular */
- rc = simple_mkdir(file->f_dentry, "D", 0700); /* directory */
- rc = simple_mkdir(file->f_dentry, "L", 0700); /* symbolic links */
- rc = simple_mkdir(file->f_dentry, "C", 0700); /* character devices */
- rc = simple_mkdir(file->f_dentry, "B", 0700); /* block devices */
- rc = simple_mkdir(file->f_dentry, "F", 0700); /* fifo's */
- rc = simple_mkdir(file->f_dentry, "S", 0700); /* sockets */
- filp_close(file, NULL);
-
- filter_id(rootid, FILTER_ROOTINO, S_IFDIR);
- file = filp_open(rootid, O_RDWR | O_CREAT, 00755);
- if (IS_ERR(file)) {
- CERROR("OBD filter: cannot make root directory");
- goto out;
- }
- filp_close(file, 0);
- rc = simple_mkdir(current->fs->pwd, rootid, 0755);
-
- file = filp_open("D/status", O_RDWR | O_CREAT, 0700);
- if ( !file || IS_ERR(file) ) {
- CERROR("OBD filter: cannot open/create status file\n");
- goto out;
- }
-
- /* steal operations */
- inode = file->f_dentry->d_inode;
- obddev->u.filter.fo_fop = file->f_op;
- obddev->u.filter.fo_iop = inode->i_op;
- obddev->u.filter.fo_aops = inode->i_mapping->a_ops;
-
- off = 0;
- if (inode->i_size == 0) {
- rc = file->f_op->write(file, (char *)&lastino,
- sizeof(lastino), &off);
- if (rc != sizeof(lastino)) {
- CERROR("OBD filter: error writing lastino\n");
- goto out;
- }
- } else {
- rc = file->f_op->read(file, (char *)&lastino, sizeof(lastino),
- &off);
- if (rc != sizeof(lastino)) {
- CERROR("OBD filter: error reading lastino\n");
- goto out;
- }
- }
- obddev->u.filter.fo_lastino = lastino;
-
- out:
- pop_ctxt(&saved);
-}
-
-static void filter_post(struct obd_device *obddev)
-{
- struct run_ctxt saved;
- long rc;
- struct file *file;
- loff_t off = 0;
-
- push_ctxt(&saved, &obddev->u.filter.fo_ctxt);
- file = filp_open("D/status", O_RDWR | O_CREAT, 0700);
- if ( !file || IS_ERR(file)) {
- CERROR("OBD filter: cannot create status file\n");
- goto out;
- }
- rc = file->f_op->write(file, (char *)&obddev->u.filter.fo_lastino,
- sizeof(obddev->u.filter.fo_lastino), &off);
- if (rc != sizeof(sizeof(obddev->u.filter.fo_lastino)) ) {
- CERROR("OBD filter: error writing lastino\n");
- }
-
- rc = filp_close(file, NULL);
- if (rc) {
- CERROR("OBD filter: cannot close status file\n");
- }
- out:
- pop_ctxt(&saved);
-}
-
-
-/* release per client resources */
-static int filter_disconnect(struct obd_conn *conn)
-{
- /* XXX cleanup preallocated inodes */
- return gen_disconnect(conn);
-} /* ext2obd_disconnect */
-
-/* mount the file system (secretly) */
-static int filter_setup(struct obd_device *obddev, obd_count len,
- void *buf)
-
-{
- struct obd_ioctl_data* data = buf;
- struct vfsmount *mnt;
- int err;
- ENTRY;
-
-
- mnt = do_kern_mount(data->ioc_inlbuf2, 0,
- data->ioc_inlbuf1, NULL);
- err = PTR_ERR(mnt);
- if (IS_ERR(mnt)) {
- EXIT;
- return err;
- }
-
- obddev->u.filter.fo_sb = mnt->mnt_root->d_inode->i_sb;
- if (!obddev->u.filter.fo_sb) {
- EXIT;
- return -ENODEV;
- }
-
- obddev->u.filter.fo_vfsmnt = mnt;
- obddev->u.filter.fo_fstype = strdup(data->ioc_inlbuf2);
-
- obddev->u.filter.fo_ctxt.pwdmnt = mnt;
- obddev->u.filter.fo_ctxt.pwd = mnt->mnt_root;
- obddev->u.filter.fo_ctxt.fs = KERNEL_DS;
-
- filter_prep(obddev);
- spin_lock_init(&obddev->u.filter.fo_lock);
-
- MOD_INC_USE_COUNT;
- EXIT;
- return 0;
-}
-
-static __u64 filter_next_id(struct obd_device *obddev)
-{
- __u64 id;
- spin_lock(&obddev->u.filter.fo_lock);
- obddev->u.filter.fo_lastino++;
- id = obddev->u.filter.fo_lastino;
- spin_unlock(&obddev->u.filter.fo_lock);
- return id;
-}
-
-static int filter_cleanup(struct obd_device * obddev)
-{
- struct super_block *sb;
-
- ENTRY;
-
- if ( !(obddev->obd_flags & OBD_SET_UP) ) {
- EXIT;
- return 0;
- }
-
- if ( !list_empty(&obddev->obd_gen_clients) ) {
- CERROR("still has clients!\n");
- EXIT;
- return -EBUSY;
- }
-
- sb = obddev->u.filter.fo_sb;
- if (!obddev->u.filter.fo_sb){
- EXIT;
- return 0;
- }
- filter_post(obddev);
-
- unlock_kernel();
- mntput(obddev->u.filter.fo_vfsmnt);
- obddev->u.filter.fo_sb = 0;
- kfree(obddev->u.filter.fo_fstype);
-
- lock_kernel();
-
- MOD_DEC_USE_COUNT;
- EXIT;
- return 0;
-}
-
-
-static struct file *filter_obj_open(struct obd_device *obddev,
- struct obdo *oa)
-{
- struct file *file;
- int error = 0;
- char id[24];
- struct run_ctxt saved;
- struct super_block *sb;
-
- sb = obddev->u.filter.fo_sb;
- if (!sb || !sb->s_dev) {
- CDEBUG(D_SUPER, "fatal: device not initialized.\n");
- EXIT;
- return NULL;
- }
-
- if ( !oa->o_id ) {
- CDEBUG(D_INODE, "fatal: invalid obdo %lu\n", (long)oa->o_id);
- EXIT;
- return NULL;
- }
-
- if ( ! (oa->o_mode & S_IFMT) ) {
- CERROR("OBD filter_obj_open, no type (%Ld), mode %o!\n",
- oa->o_id, oa->o_mode);
- }
- filter_id(id, oa->o_id, oa->o_mode);
- push_ctxt(&saved, &obddev->u.filter.fo_ctxt);
- file = filp_open(id , O_RDONLY | O_LARGEFILE, 0);
- pop_ctxt(&saved);
-
- if (IS_ERR(file)) {
- error = PTR_ERR(file);
- file = NULL;
- }
- CDEBUG(D_INODE, "opening obdo %s\n", id);
-
- return file;
-}
-
-static struct inode *filter_inode_from_obdo(struct obd_device *obddev,
- struct obdo *oa)
-{
- struct file *file;
- struct inode *inode;
-
- file = filter_obj_open(obddev, oa);
- if ( !file ) {
- CERROR("filter_inode_from_obdo failed\n");
- return NULL;
- }
-
- inode = iget(file->f_dentry->d_inode->i_sb, file->f_dentry->d_inode->i_ino);
- filp_close(file, 0);
- return inode;
-}
-
-static inline void filter_from_inode(struct obdo *oa, struct inode *inode)
-{
- int type = oa->o_mode & S_IFMT;
- ENTRY;
-
- CDEBUG(D_INFO, "src inode %ld, dst obdo %ld valid 0x%08x\n",
- inode->i_ino, (long)oa->o_id, oa->o_valid);
- obdo_from_inode(oa, inode);
- oa->o_mode &= ~S_IFMT;
- oa->o_mode |= type;
-
- if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
- obd_rdev rdev = kdev_t_to_nr(inode->i_rdev);
- CDEBUG(D_INODE, "copying device %x from inode to obdo\n",
- rdev);
- *((obd_rdev *)oa->o_inline) = rdev;
- oa->o_obdflags |= OBD_FL_INLINEDATA;
- oa->o_valid |= OBD_MD_FLINLINE;
- }
-
-#if 0
- else if (ext2obd_has_inline(inode)) {
- CDEBUG(D_INFO, "copying inline from inode to obdo\n");
- memcpy(oa->o_inline, inode->u.ext2_i.i_data,
- MIN(sizeof(inode->u.ext2_i.i_data),OBD_INLINESZ));
- oa->o_obdflags |= OBD_FL_INLINEDATA;
- oa->o_valid |= OBD_MD_FLINLINE;
- }
-
- if (ext2obd_has_obdmd(inode)) {
- /* XXX this will change when we don't store the obdmd in data */
- CDEBUG(D_INFO, "copying obdmd from inode to obdo\n");
- memcpy(oa->o_obdmd, inode->u.ext2_i.i_data,
- MIN(sizeof(inode->u.ext2_i.i_data),OBD_INLINESZ));
- oa->o_obdflags |= OBD_FL_OBDMDEXISTS;
- oa->o_valid |= OBD_MD_FLOBDMD;
- }
-#endif
- EXIT;
-}
-
-static int filter_getattr(struct obd_conn *conn, struct obdo *oa)
-{
- struct inode *inode;
-
- ENTRY;
- if ( !gen_client(conn) ) {
- CDEBUG(D_IOCTL, "fatal: invalid client %u\n", conn->oc_id);
- EXIT;
- return -EINVAL;
- }
-
- if ( !(inode = filter_inode_from_obdo(conn->oc_dev, oa)) ) {
- EXIT;
- return -ENOENT;
- }
-
- oa->o_valid &= ~OBD_MD_FLID;
- filter_from_inode(oa, inode);
-
- iput(inode);
- EXIT;
- return 0;
-}
-
-static int filter_setattr(struct obd_conn *conn, struct obdo *oa)
-{
- struct inode *inode;
- struct iattr iattr;
- int rc;
- struct dentry de;
-
- if (!gen_client(conn)) {
- CDEBUG(D_IOCTL, "invalid client %u\n", conn->oc_id);
- return -EINVAL;
- }
-
- inode = filter_inode_from_obdo(conn->oc_dev, oa);
- if ( !inode ) {
- EXIT;
- return -ENOENT;
- }
-
- iattr_from_obdo(&iattr, oa);
- iattr.ia_mode &= ~S_IFMT;
- iattr.ia_mode |= S_IFREG;
- de.d_inode = inode;
- if ( inode->i_op->setattr ) {
- rc = inode->i_op->setattr(&de, &iattr);
- } else {
- rc = inode_setattr(inode, &iattr);
- }
-
- iput(inode);
- EXIT;
- return rc;
-}
-
-static int filter_create (struct obd_conn* conn, struct obdo *oa)
-{
- char name[64];
- struct run_ctxt saved;
- struct file *file;
- int mode;
- struct obd_device *obddev = conn->oc_dev;
- struct iattr;
- ENTRY;
-
- if (!gen_client(conn)) {
- CDEBUG(D_IOCTL, "invalid client %u\n", conn->oc_id);
- return -EINVAL;
- }
- CDEBUG(D_IOCTL, "\n");
-
- oa->o_id = filter_next_id(conn->oc_dev);
- if ( !(oa->o_mode && S_IFMT) ) {
- CERROR("filter obd: no type!\n");
- return -ENOENT;
- }
-
- filter_id(name, oa->o_id, oa->o_mode);
- push_ctxt(&saved, &obddev->u.filter.fo_ctxt);
- mode = oa->o_mode;
- mode &= ~S_IFMT;
- mode |= S_IFREG;
- file = filp_open(name, O_RDONLY | O_CREAT, mode);
- pop_ctxt(&saved);
- if (IS_ERR(file)) {
- CERROR("Error mknod obj %s, err %ld\n", name, PTR_ERR(file));
- return -ENOENT;
- }
- filp_close(file, 0);
- CDEBUG(D_IOCTL, "\n");
-
- /* Set flags for fields we have set in ext2_new_inode */
- oa->o_valid |= OBD_MD_FLID | OBD_MD_FLBLKSZ | OBD_MD_FLBLOCKS |
- OBD_MD_FLMTIME | OBD_MD_FLATIME | OBD_MD_FLCTIME |
- OBD_MD_FLUID | OBD_MD_FLGID;
- return 0;
-}
-
-static int filter_destroy(struct obd_conn *conn, struct obdo *oa)
-{
- struct obd_device * obddev;
- struct obd_client * cli;
- struct inode * inode;
- struct file *dir;
- int rc;
- struct run_ctxt saved;
- char id[128];
-
- if (!(cli = gen_client(conn))) {
- CDEBUG(D_IOCTL, "invalid client %u\n", conn->oc_id);
- EXIT;
- return -EINVAL;
- }
-
- obddev = conn->oc_dev;
- inode = filter_inode_from_obdo(obddev, oa);
-
- if (!inode) {
- EXIT;
- return -ENOENT;
- }
-
- inode->i_nlink = 1;
- inode->i_mode = 010000;
- iput(inode);
-
- filter_id(id, oa->o_id, oa->o_mode);
- push_ctxt(&saved, &obddev->u.filter.fo_ctxt);
- dir = filter_parent(oa->o_id, oa->o_mode);
- if (!dir || IS_ERR(dir)) {
- goto out;
- }
-
- rc = simple_unlink(dir->f_dentry, id);
-
- out:
- filp_close(dir, 0);
- pop_ctxt(&saved);
- EXIT;
- return rc;
-}
-
-static int filter_truncate(struct obd_conn *conn, struct obdo *oa, obd_size count,
- obd_off offset)
-{
- int error;
-
- error = filter_setattr(conn, oa);
- oa->o_valid = OBD_MD_FLBLOCKS | OBD_MD_FLCTIME | OBD_MD_FLMTIME;
-
- EXIT;
- return error;
-}
-
-/* buffer must lie in user memory here */
-static int filter_read(struct obd_conn *conn, struct obdo *oa, char *buf,
- obd_size *count, obd_off offset)
-{
- struct file * file;
- unsigned long retval;
- int err;
-
- if (!gen_client(conn)) {
- CDEBUG(D_IOCTL, "invalid client %u\n", conn->oc_id);
- EXIT;
- return -EINVAL;
- }
-
- file = filter_obj_open(conn->oc_dev, oa);
- if (!file || IS_ERR(file)) {
- EXIT;
- return -PTR_ERR(file);
- }
-
- /* count doubles as retval */
- retval = file->f_op->read(file, buf, *count, &offset);
- filp_close(file, 0);
-
- if ( retval >= 0 ) {
- err = 0;
- *count = retval;
- } else {
- err = retval;
- *count = 0;
- }
-
- return err;
-} /* ext2obd_read */
-
-
-/* buffer must lie in user memory here */
-static int filter_write(struct obd_conn *conn, struct obdo *oa, char *buf,
- obd_size *count, obd_off offset)
-{
- int err;
- struct file * file;
- unsigned long retval;
-
- ENTRY;
- if (!gen_client(conn)) {
- CDEBUG(D_IOCTL, "invalid client %u\n", conn->oc_id);
- EXIT;
- return -EINVAL;
- }
-
- file = filter_obj_open(conn->oc_dev, oa);
- if (!file || IS_ERR(file)) {
- EXIT;
- return -PTR_ERR(file);
- }
-
- /* count doubles as retval */
- retval = file->f_op->write(file, buf, *count, &offset);
- filp_close(file, 0);
-
- if ( retval >= 0 ) {
- err = 0;
- *count = retval;
- EXIT;
- } else {
- err = retval;
- *count = 0;
- EXIT;
- }
-
- return err;
-} /* ext2obd_write */
-
-static int filter_pgcache_brw(int rw, struct obd_conn *conn,
- obd_count num_oa,
- struct obdo **oa,
- obd_count *oa_bufs,
- struct page **pages,
- obd_size *count,
- obd_off *offset,
- obd_flag *flags)
-{
- struct super_block *sb;
- mm_segment_t oldfs;
- int onum; /* index to oas */
- int pnum; /* index to pages (bufs) */
- unsigned long retval;
- int error;
- struct file *file;
-
- ENTRY;
-
- if (!gen_client(conn)) {
- CDEBUG(D_IOCTL, "invalid client %u\n", conn->oc_id);
- EXIT;
- return -EINVAL;
- }
-
- sb = conn->oc_dev->u.filter.fo_sb;
- oldfs = get_fs();
- set_fs(KERNEL_DS);
-
- pnum = 0; /* pnum indexes buf 0..num_pages */
- for (onum = 0; onum < num_oa; onum++) {
- int pg;
-
- file = filter_obj_open(conn->oc_dev, oa[onum]);
- if (!file || IS_ERR(file)) {
- EXIT;
- error = -ENOENT;
- goto ERROR;
- }
-
- /* count doubles as retval */
- for (pg = 0; pg < oa_bufs[onum]; pg++) {
- CDEBUG(D_INODE, "OP %d obdo no/pno: (%d,%d) (%ld,%ld) off count (%Ld,%Ld)\n",
- rw, onum, pnum, file->f_dentry->d_inode->i_ino,
- (unsigned long)offset[pnum] >> PAGE_CACHE_SHIFT,
- offset[pnum], count[pnum]);
- if (rw == WRITE) {
- loff_t off;
- char *buffer;
- off = offset[pnum];
- buffer = kmap(pages[pnum]);
- retval = file->f_op->write(file, buffer, count[pnum], &off);
- kunmap(pages[pnum]);
- CDEBUG(D_INODE, "retval %ld\n", retval);
- } else {
- loff_t off = offset[pnum];
- char *buffer = kmap(pages[pnum]);
-
- if (off >= file->f_dentry->d_inode->i_size) {
- memset(buffer, 0, count[pnum]);
- retval = count[pnum];
- } else {
- retval = file->f_op->read(file, buffer, count[pnum], &off);
- }
- kunmap(pages[pnum]);
-
- if ( retval != count[pnum] ) {
- filp_close(file, 0);
- retval = -EIO;
- EXIT;
- goto ERROR;
- }
- CDEBUG(D_INODE, "retval %ld\n", retval);
- }
- pnum++;
- }
- /* sizes and blocks are set by generic_file_write */
- /* ctimes/mtimes will follow with a setattr call */
- filp_close(file, 0);
- }
-
- EXIT;
- ERROR:
- set_fs(oldfs);
- error = (retval >= 0) ? 0 : retval;
- return error;
-}
-
-static int filter_statfs (struct obd_conn *conn, struct statfs * statfs)
-{
- struct super_block *sb;
- int err;
-
- ENTRY;
-
- if (!gen_client(conn)) {
- CDEBUG(D_IOCTL, "invalid client %u\n", conn->oc_id);
- EXIT;
- return -EINVAL;
- }
-
- sb = conn->oc_dev->u.filter.fo_sb;
-
- err = sb->s_op->statfs(sb, statfs);
- EXIT;
- return err;
-} /* ext2obd_statfs */
-
-
-static int filter_get_info(struct obd_conn *conn, obd_count keylen,
- void *key, obd_count *vallen, void **val)
-{
- struct obd_device *obddev;
- struct obd_client * cli;
- ENTRY;
-
- if (!(cli = gen_client(conn))) {
- CDEBUG(D_IOCTL, "invalid client %u\n", conn->oc_id);
- return -EINVAL;
- }
-
- obddev = conn->oc_dev;
-
- if ( keylen == strlen("blocksize") &&
- memcmp(key, "blocksize", keylen) == 0 ) {
- *vallen = sizeof(int);
- *val = (void *)obddev->u.filter.fo_sb->s_blocksize;
- EXIT;
- return 0;
- }
-
- if ( keylen == strlen("blocksize_bits") &&
- memcmp(key, "blocksize_bits", keylen) == 0 ){
- *vallen = sizeof(int);
- *val = (void *)(int)obddev->u.filter.fo_sb->s_blocksize_bits;
- EXIT;
- return 0;
- }
-
- if ( keylen == strlen("root_ino") &&
- memcmp(key, "root_ino", keylen) == 0 ){
- *vallen = sizeof(int);
- *val = (void *)(int) FILTER_ROOTINO;
- EXIT;
- return 0;
- }
-
- CDEBUG(D_IOCTL, "invalid key\n");
- return -EINVAL;
-}
-
-
-struct obd_ops filter_obd_ops = {
- o_iocontrol: NULL,
- o_get_info: filter_get_info,
- o_setup: filter_setup,
- o_cleanup: filter_cleanup,
- o_connect: gen_connect,
- o_disconnect: filter_disconnect,
- o_statfs: filter_statfs,
- o_getattr: filter_getattr,
- o_create: filter_create,
- o_setattr: filter_setattr,
- o_destroy: filter_destroy,
- o_read: filter_read,
- o_write: filter_write,
- o_brw: filter_pgcache_brw,
- o_punch: filter_truncate,
-#if 0
- o_preallocate: ext2obd_preallocate_inodes,
- o_migrate: ext2obd_migrate,
- o_copy: gen_copy_data,
- o_iterate: ext2obd_iterate
-#endif
-};
-
-
-static int __init obdfilter_init(void)
-{
- printk(KERN_INFO "Filtering OBD driver v0.001, braam@clusterfs.com\n");
- return obd_register_type(&filter_obd_ops, OBD_FILTER_DEVICENAME);
-}
-
-static void __exit obdfilter_exit(void)
-{
- obd_unregister_type(OBD_FILTER_DEVICENAME);
-}
-
-MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
-MODULE_DESCRIPTION("Lustre Filtering OBD driver v1.0");
-MODULE_LICENSE("GPL");
-
-module_init(obdfilter_init);
-module_exit(obdfilter_exit);
+++ /dev/null
-.Xrefs
-config.log
-config.status
-configure
-Makefile
-Makefile.in
-.deps
-TAGS
+++ /dev/null
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-DEFS=
-
-MODULE = obdfs
-modulefs_DATA = obdfs.o
-EXTRA_PROGRAMS = obdfs
-obdfs_SOURCES = rw.c file.c dir.c sysctl.c super.c namei.c symlink.c
-
-include $(top_srcdir)/Rules
+++ /dev/null
-OBDFS - v 0.001
-
-This version can mount, list and set the attributes of the root
-directory.
-
-1. configure the obd to use /dev/obd with a scratch file system
-
-2. make
-
-3. insmod obdfs
-
-4. mount -t obdfs -o device=/dev/obd0 /dev/obd0 /mnt/obd
-
-To verify: type mount (output:
-/dev/obd on /mnt/obd type obdfs (rw))
-
-5. ls -ld /mnt/obd
-
-6. chmod 711 /mnt/obd, ls -ld /mnt/obd
-
-7. chown disk /mnt/obd, ls -ld /mnt/obd
-
+++ /dev/null
-/*
- * linux/fs/ext2/dir.c
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- * from
- *
- * linux/fs/minix/dir.c
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- *
- * ext2 directory handling functions
- *
- * Big-endian to little-endian byte-swapping/bitmaps by
- * David S. Miller (davem@caip.rutgers.edu), 1995
- *
- * All code that works with directory layout had been switched to pagecache
- * and moved here. AV
- */
-
-#include <linux/fs.h>
-#include <linux/ext2_fs.h>
-#include <linux/pagemap.h>
-
-#define DEBUG_SUBSYSTEM S_OBDFS
-
-#include <linux/obd_support.h>
-#include <linux/locks.h>
-
-typedef struct ext2_dir_entry_2 ext2_dirent;
-
-#define PageChecked(page) test_bit(PG_checked, &(page)->flags)
-#define SetPageChecked(page) set_bit(PG_checked, &(page)->flags)
-
-int waitfor_one_page(struct page *page)
-{
- int error = 0;
- struct buffer_head *bh, *head = page->buffers;
-
- bh = head;
- do {
- wait_on_buffer(bh);
- if (buffer_req(bh) && !buffer_uptodate(bh))
- error = -EIO;
- } while ((bh = bh->b_this_page) != head);
- return error;
-}
-
-/*
- * ext2 uses block-sized chunks. Arguably, sector-sized ones would be
- * more robust, but we have what we have
- */
-static inline unsigned ext2_chunk_size(struct inode *inode)
-{
- //return inode->i_sb->s_blocksize;
- return PAGE_SIZE;
-}
-
-static inline void ext2_put_page(struct page *page)
-{
- kunmap(page);
- page_cache_release(page);
-}
-
-static inline unsigned long dir_pages(struct inode *inode)
-{
- return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
-}
-
-static int ext2_commit_chunk(struct page *page, unsigned from, unsigned to)
-{
- struct inode *dir = page->mapping->host;
- int err = 0;
- dir->i_version = ++event;
- page->mapping->a_ops->commit_write(NULL, page, from, to);
- if (IS_SYNC(dir))
- err = waitfor_one_page(page);
- return err;
-}
-
-static void ext2_check_page(struct page *page)
-{
- struct inode *dir = page->mapping->host;
- unsigned chunk_size = ext2_chunk_size(dir);
- char *kaddr = page_address(page);
- // u32 max_inumber = le32_to_cpu(sb->u.ext2_sb.s_es->s_inodes_count);
- unsigned offs, rec_len;
- unsigned limit = PAGE_CACHE_SIZE;
- ext2_dirent *p;
- char *error;
-
- if ((dir->i_size >> PAGE_CACHE_SHIFT) == page->index) {
- limit = dir->i_size & ~PAGE_CACHE_MASK;
- if (limit & (chunk_size - 1))
- goto Ebadsize;
- for (offs = limit; offs<PAGE_CACHE_SIZE; offs += chunk_size) {
- ext2_dirent *p = (ext2_dirent*)(kaddr + offs);
- p->rec_len = cpu_to_le16(chunk_size);
- }
- if (!limit)
- goto out;
- }
- for (offs = 0; offs <= limit - EXT2_DIR_REC_LEN(1); offs += rec_len) {
- p = (ext2_dirent *)(kaddr + offs);
- rec_len = le16_to_cpu(p->rec_len);
-
- if (rec_len < EXT2_DIR_REC_LEN(1))
- goto Eshort;
- if (rec_len & 3)
- goto Ealign;
- if (rec_len < EXT2_DIR_REC_LEN(p->name_len))
- goto Enamelen;
- if (((offs + rec_len - 1) ^ offs) & ~(chunk_size-1))
- goto Espan;
- // if (le32_to_cpu(p->inode) > max_inumber)
- //goto Einumber;
- }
- if (offs != limit)
- goto Eend;
-out:
- SetPageChecked(page);
- return;
-
- /* Too bad, we had an error */
-
-Ebadsize:
- CERROR("ext2_check_page"
- "size of directory #%lu is not a multiple of chunk size",
- dir->i_ino
- );
- goto fail;
-Eshort:
- error = "rec_len is smaller than minimal";
- goto bad_entry;
-Ealign:
- error = "unaligned directory entry";
- goto bad_entry;
-Enamelen:
- error = "rec_len is too small for name_len";
- goto bad_entry;
-Espan:
- error = "directory entry across blocks";
- goto bad_entry;
- //Einumber:
- // error = "inode out of bounds";
-bad_entry:
- CERROR("ext2_check_page" "bad entry in directory #%lu: %s - "
- "offset=%lu, inode=%lu, rec_len=%d, name_len=%d",
- dir->i_ino, error, (page->index<<PAGE_CACHE_SHIFT)+offs,
- (unsigned long) le32_to_cpu(p->inode),
- rec_len, p->name_len);
- goto fail;
-Eend:
- p = (ext2_dirent *)(kaddr + offs);
- CERROR("ext2_check_page"
- "entry in directory #%lu spans the page boundary"
- "offset=%lu, inode=%lu",
- dir->i_ino, (page->index<<PAGE_CACHE_SHIFT)+offs,
- (unsigned long) le32_to_cpu(p->inode));
-fail:
- SetPageChecked(page);
- SetPageError(page);
-}
-
-static struct page * ext2_get_page(struct inode *dir, unsigned long n)
-{
- struct address_space *mapping = dir->i_mapping;
- struct page *page = read_cache_page(mapping, n,
- (filler_t*)mapping->a_ops->readpage, NULL);
- if (!IS_ERR(page)) {
- wait_on_page(page);
- kmap(page);
- if (!Page_Uptodate(page))
- goto fail;
- if (!PageChecked(page))
- ext2_check_page(page);
- if (PageError(page))
- goto fail;
- }
- return page;
-
-fail:
- ext2_put_page(page);
- return ERR_PTR(-EIO);
-}
-
-/*
- * NOTE! unlike strncmp, ext2_match returns 1 for success, 0 for failure.
- *
- * len <= EXT2_NAME_LEN and de != NULL are guaranteed by caller.
- */
-static inline int ext2_match (int len, const char * const name,
- struct ext2_dir_entry_2 * de)
-{
- if (len != de->name_len)
- return 0;
- if (!de->inode)
- return 0;
- return !memcmp(name, de->name, len);
-}
-
-/*
- * p is at least 6 bytes before the end of page
- */
-static inline ext2_dirent *ext2_next_entry(ext2_dirent *p)
-{
- return (ext2_dirent *)((char*)p + le16_to_cpu(p->rec_len));
-}
-
-static inline unsigned
-ext2_validate_entry(char *base, unsigned offset, unsigned mask)
-{
- ext2_dirent *de = (ext2_dirent*)(base + offset);
- ext2_dirent *p = (ext2_dirent*)(base + (offset&mask));
- while ((char*)p < (char*)de)
- p = ext2_next_entry(p);
- return (char *)p - base;
-}
-
-static unsigned char ext2_filetype_table[EXT2_FT_MAX] = {
- [EXT2_FT_UNKNOWN] DT_UNKNOWN,
- [EXT2_FT_REG_FILE] DT_REG,
- [EXT2_FT_DIR] DT_DIR,
- [EXT2_FT_CHRDEV] DT_CHR,
- [EXT2_FT_BLKDEV] DT_BLK,
- [EXT2_FT_FIFO] DT_FIFO,
- [EXT2_FT_SOCK] DT_SOCK,
- [EXT2_FT_SYMLINK] DT_LNK,
-};
-
-static unsigned int obdfs_dt2fmt[DT_WHT + 1] = {
- [EXT2_FT_UNKNOWN] 0,
- [EXT2_FT_REG_FILE] S_IFREG,
- [EXT2_FT_DIR] S_IFDIR,
- [EXT2_FT_CHRDEV] S_IFCHR,
- [EXT2_FT_BLKDEV] S_IFBLK,
- [EXT2_FT_FIFO] S_IFIFO,
- [EXT2_FT_SOCK] S_IFSOCK,
- [EXT2_FT_SYMLINK] S_IFLNK
-};
-
-#define S_SHIFT 12
-static unsigned char ext2_type_by_mode[S_IFMT >> S_SHIFT] = {
- [S_IFREG >> S_SHIFT] EXT2_FT_REG_FILE,
- [S_IFDIR >> S_SHIFT] EXT2_FT_DIR,
- [S_IFCHR >> S_SHIFT] EXT2_FT_CHRDEV,
- [S_IFBLK >> S_SHIFT] EXT2_FT_BLKDEV,
- [S_IFIFO >> S_SHIFT] EXT2_FT_FIFO,
- [S_IFSOCK >> S_SHIFT] EXT2_FT_SOCK,
- [S_IFLNK >> S_SHIFT] EXT2_FT_SYMLINK,
-};
-
-static inline void ext2_set_de_type(ext2_dirent *de, struct inode *inode)
-{
- mode_t mode = inode->i_mode;
- de->file_type = ext2_type_by_mode[(mode & S_IFMT)>>S_SHIFT];
-}
-
-int
-new_obdfs_readdir (struct file * filp, void * dirent, filldir_t filldir)
-{
- loff_t pos = filp->f_pos;
- struct inode *inode = filp->f_dentry->d_inode;
- // XXX struct super_block *sb = inode->i_sb;
- unsigned offset = pos & ~PAGE_CACHE_MASK;
- unsigned long n = pos >> PAGE_CACHE_SHIFT;
- unsigned long npages = dir_pages(inode);
- unsigned chunk_mask = ~(ext2_chunk_size(inode)-1);
- unsigned char *types = NULL;
- int need_revalidate = (filp->f_version != inode->i_version);
-
- if (pos > inode->i_size - EXT2_DIR_REC_LEN(1))
- goto done;
-
- types = ext2_filetype_table;
-
- for ( ; n < npages; n++, offset = 0) {
- char *kaddr, *limit;
- ext2_dirent *de;
- struct page *page = ext2_get_page(inode, n);
-
- if (IS_ERR(page))
- continue;
- kaddr = page_address(page);
- if (need_revalidate) {
- offset = ext2_validate_entry(kaddr, offset, chunk_mask);
- need_revalidate = 0;
- }
- de = (ext2_dirent *)(kaddr+offset);
- limit = kaddr + PAGE_CACHE_SIZE - EXT2_DIR_REC_LEN(1);
- for ( ;(char*)de <= limit; de = ext2_next_entry(de))
- if (de->inode) {
- int over;
- unsigned char d_type = DT_UNKNOWN;
-
- if (types && de->file_type < EXT2_FT_MAX)
- d_type = types[de->file_type];
-
- offset = (char *)de - kaddr;
- over = filldir(dirent, de->name, de->name_len,
- (n<<PAGE_CACHE_SHIFT) | offset,
- le32_to_cpu(de->inode), d_type);
- if (over) {
- ext2_put_page(page);
- goto done;
- }
- }
- ext2_put_page(page);
- }
-
-done:
- filp->f_pos = (n << PAGE_CACHE_SHIFT) | offset;
- filp->f_version = inode->i_version;
- UPDATE_ATIME(inode);
- return 0;
-}
-
-/*
- * ext2_find_entry()
- *
- * finds an entry in the specified directory with the wanted name. It
- * returns the page in which the entry was found, and the entry itself
- * (as a parameter - res_dir). Page is returned mapped and unlocked.
- * Entry is guaranteed to be valid.
- */
-struct ext2_dir_entry_2 * ext2_find_entry (struct inode * dir,
- struct dentry *dentry, struct page ** res_page)
-{
- const char *name = dentry->d_name.name;
- int namelen = dentry->d_name.len;
- unsigned reclen = EXT2_DIR_REC_LEN(namelen);
- unsigned long start, n;
- unsigned long npages = dir_pages(dir);
- struct page *page = NULL;
- ext2_dirent * de;
-
- /* OFFSET_CACHE */
- *res_page = NULL;
-
- // start = dir->u.ext2_i.i_dir_start_lookup;
- start = 0;
- if (start >= npages)
- start = 0;
- n = start;
- do {
- char *kaddr;
- page = ext2_get_page(dir, n);
- if (!IS_ERR(page)) {
- kaddr = page_address(page);
- de = (ext2_dirent *) kaddr;
- kaddr += PAGE_CACHE_SIZE - reclen;
- while ((char *) de <= kaddr) {
- if (ext2_match (namelen, name, de))
- goto found;
- de = ext2_next_entry(de);
- }
- ext2_put_page(page);
- }
- if (++n >= npages)
- n = 0;
- } while (n != start);
- return NULL;
-
-found:
- *res_page = page;
- // dir->u.ext2_i.i_dir_start_lookup = n;
- return de;
-}
-
-struct ext2_dir_entry_2 * ext2_dotdot (struct inode *dir, struct page **p)
-{
- struct page *page = ext2_get_page(dir, 0);
- ext2_dirent *de = NULL;
-
- if (!IS_ERR(page)) {
- de = ext2_next_entry((ext2_dirent *) page_address(page));
- *p = page;
- }
- return de;
-}
-
-ino_t obdfs_inode_by_name(struct inode * dir, struct dentry *dentry, int *type)
-{
- ino_t res = 0;
- struct ext2_dir_entry_2 * de;
- struct page *page;
-
- de = ext2_find_entry (dir, dentry, &page);
- if (de) {
- res = le32_to_cpu(de->inode);
- *type = obdfs_dt2fmt[de->file_type];
- kunmap(page);
- page_cache_release(page);
- }
- return res;
-}
-
-/* Releases the page */
-void ext2_set_link(struct inode *dir, struct ext2_dir_entry_2 *de,
- struct page *page, struct inode *inode)
-{
- unsigned from = (char *) de - (char *) page_address(page);
- unsigned to = from + le16_to_cpu(de->rec_len);
- int err;
-
- lock_page(page);
- err = page->mapping->a_ops->prepare_write(NULL, page, from, to);
- if (err)
- BUG();
- de->inode = cpu_to_le32(inode->i_ino);
- ext2_set_de_type (de, inode);
- dir->i_mtime = dir->i_ctime = CURRENT_TIME;
- err = ext2_commit_chunk(page, from, to);
- UnlockPage(page);
- ext2_put_page(page);
-}
-
-/*
- * Parent is locked.
- */
-int ext2_add_link (struct dentry *dentry, struct inode *inode)
-{
- struct inode *dir = dentry->d_parent->d_inode;
- const char *name = dentry->d_name.name;
- int namelen = dentry->d_name.len;
- unsigned reclen = EXT2_DIR_REC_LEN(namelen);
- unsigned short rec_len, name_len;
- struct page *page = NULL;
- ext2_dirent * de;
- unsigned long npages = dir_pages(dir);
- unsigned long n;
- char *kaddr;
- unsigned from, to;
- int err;
-
- /* We take care of directory expansion in the same loop */
- for (n = 0; n <= npages; n++) {
- page = ext2_get_page(dir, n);
- err = PTR_ERR(page);
- if (IS_ERR(page))
- goto out;
- kaddr = page_address(page);
- de = (ext2_dirent *)kaddr;
- kaddr += PAGE_CACHE_SIZE - reclen;
- while ((char *)de <= kaddr) {
- err = -EEXIST;
- if (ext2_match (namelen, name, de))
- goto out_page;
- name_len = EXT2_DIR_REC_LEN(de->name_len);
- rec_len = le16_to_cpu(de->rec_len);
- if ( n==npages && rec_len == 0) {
- CERROR("Fatal dir behaviour\n");
- goto out_page;
- }
- if (!de->inode && rec_len >= reclen)
- goto got_it;
- if (rec_len >= name_len + reclen)
- goto got_it;
- de = (ext2_dirent *) ((char *) de + rec_len);
- }
- ext2_put_page(page);
- }
- BUG();
- return -EINVAL;
-
-got_it:
- from = (char*)de - (char*)page_address(page);
- to = from + rec_len;
- lock_page(page);
- err = page->mapping->a_ops->prepare_write(NULL, page, from, to);
- if (err)
- goto out_unlock;
- if (de->inode) {
- ext2_dirent *de1 = (ext2_dirent *) ((char *) de + name_len);
- de1->rec_len = cpu_to_le16(rec_len - name_len);
- de->rec_len = cpu_to_le16(name_len);
- de = de1;
- }
- de->name_len = namelen;
- memcpy (de->name, name, namelen);
- de->inode = cpu_to_le32(inode->i_ino);
- ext2_set_de_type (de, inode);
- CDEBUG(D_INODE, "type set to %o\n", de->file_type);
- dir->i_mtime = dir->i_ctime = CURRENT_TIME;
- err = ext2_commit_chunk(page, from, to);
-
- // change_inode happens with the commit_chunk
- // obdfs_change_inode(dir);
- /* OFFSET_CACHE */
-out_unlock:
- UnlockPage(page);
-out_page:
- ext2_put_page(page);
-out:
- return err;
-}
-
-/*
- * ext2_delete_entry deletes a directory entry by merging it with the
- * previous entry. Page is up-to-date. Releases the page.
- */
-int ext2_delete_entry (struct ext2_dir_entry_2 * dir, struct page * page )
-{
- struct address_space *mapping = page->mapping;
- struct inode *inode = mapping->host;
- char *kaddr = page_address(page);
- unsigned from = ((char*)dir - kaddr) & ~(ext2_chunk_size(inode)-1);
- unsigned to = ((char*)dir - kaddr) + le16_to_cpu(dir->rec_len);
- ext2_dirent * pde = NULL;
- ext2_dirent * de = (ext2_dirent *) (kaddr + from);
- int err;
-
- while ((char*)de < (char*)dir) {
- pde = de;
- de = ext2_next_entry(de);
- }
- if (pde)
- from = (char*)pde - (char*)page_address(page);
- lock_page(page);
- err = mapping->a_ops->prepare_write(NULL, page, from, to);
- if (err)
- BUG();
- if (pde)
- pde->rec_len = cpu_to_le16(to-from);
- dir->inode = 0;
- inode->i_ctime = inode->i_mtime = CURRENT_TIME;
- err = ext2_commit_chunk(page, from, to);
- UnlockPage(page);
- ext2_put_page(page);
- return err;
-}
-
-/*
- * Set the first fragment of directory.
- */
-int ext2_make_empty(struct inode *inode, struct inode *parent)
-{
- struct address_space *mapping = inode->i_mapping;
- struct page *page = grab_cache_page(mapping, 0);
- unsigned chunk_size = ext2_chunk_size(inode);
- struct ext2_dir_entry_2 * de;
- char *base;
- int err;
- ENTRY;
-
- if (!page)
- return -ENOMEM;
- err = mapping->a_ops->prepare_write(NULL, page, 0, chunk_size);
- if (err)
- goto fail;
-
- base = page_address(page);
-
- de = (struct ext2_dir_entry_2 *) base;
- de->name_len = 1;
- de->rec_len = cpu_to_le16(EXT2_DIR_REC_LEN(1));
- memcpy (de->name, ".\0\0", 4);
- de->inode = cpu_to_le32(inode->i_ino);
- ext2_set_de_type (de, inode);
-
- de = (struct ext2_dir_entry_2 *) (base + EXT2_DIR_REC_LEN(1));
- de->name_len = 2;
- de->rec_len = cpu_to_le16(chunk_size - EXT2_DIR_REC_LEN(1));
- de->inode = cpu_to_le32(parent->i_ino);
- memcpy (de->name, "..\0", 4);
- ext2_set_de_type (de, inode);
-
- err = ext2_commit_chunk(page, 0, chunk_size);
-fail:
- UnlockPage(page);
- page_cache_release(page);
- ENTRY;
- return err;
-}
-
-/*
- * routine to check that the specified directory is empty (for rmdir)
- */
-int ext2_empty_dir (struct inode * inode)
-{
- struct page *page = NULL;
- unsigned long i, npages = dir_pages(inode);
-
- for (i = 0; i < npages; i++) {
- char *kaddr;
- ext2_dirent * de;
- page = ext2_get_page(inode, i);
-
- if (IS_ERR(page))
- continue;
-
- kaddr = page_address(page);
- de = (ext2_dirent *)kaddr;
- kaddr += PAGE_CACHE_SIZE-EXT2_DIR_REC_LEN(1);
-
- while ((char *)de <= kaddr) {
- if (de->inode != 0) {
- /* check for . and .. */
- if (de->name[0] != '.')
- goto not_empty;
- if (de->name_len > 2)
- goto not_empty;
- if (de->name_len < 2) {
- if (de->inode !=
- cpu_to_le32(inode->i_ino))
- goto not_empty;
- } else if (de->name[1] != '.')
- goto not_empty;
- }
- de = ext2_next_entry(de);
- }
- ext2_put_page(page);
- }
- return 1;
-
-not_empty:
- ext2_put_page(page);
- return 0;
-}
-
-struct file_operations obdfs_dir_operations = {
- read: generic_read_dir,
- readdir: new_obdfs_readdir
-};
+++ /dev/null
-/*
- * linux/fs/ext2/file.c
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- * from
- *
- * linux/fs/minix/file.c
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- *
- * ext2 fs regular file handling primitives
- *
- * 64-bit file support on 64-bit platforms by Jakub Jelinek
- * (jj@sunsite.ms.mff.cuni.cz)
- */
-
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/fcntl.h>
-#include <linux/sched.h>
-#include <linux/stat.h>
-#include <linux/locks.h>
-#include <linux/mm.h>
-#include <linux/pagemap.h>
-#include <linux/smp_lock.h>
-
-#define DEBUG_SUBSYSTEM S_OBDFS
-
-#include <linux/obd_support.h>
-#include <linux/obdfs.h>
-
-extern int obdfs_setattr(struct dentry *de, struct iattr *attr);
-void obdfs_change_inode(struct inode *inode);
-
-static inline void obdfs_remove_suid(struct inode *inode)
-{
- unsigned int mode;
-
- /* set S_IGID if S_IXGRP is set, and always set S_ISUID */
- mode = (inode->i_mode & S_IXGRP)*(S_ISGID/S_IXGRP) | S_ISUID;
-
- /* was any of the uid bits set? */
- mode &= inode->i_mode;
- if (mode && !capable(CAP_FSETID)) {
- inode->i_mode &= ~mode;
- // XXX careful here - we cannot change the size
- //obdfs_change_inode(inode);
- }
-}
-
-/*
- * Write to a file (through the page cache).
- */
-static ssize_t
-obdfs_file_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
-{
- ssize_t retval;
- CDEBUG(D_INFO, "Writing inode %ld, %d bytes, offset %Ld\n",
- file->f_dentry->d_inode->i_ino, count, *ppos);
-
- retval = generic_file_write(file, buf, count, ppos);
- CDEBUG(D_INFO, "Wrote %d\n", retval);
-
- /* update mtime/ctime/atime here, NOT size */
- if (retval > 0) {
- struct iattr attr;
- attr.ia_valid = ATTR_MTIME | ATTR_CTIME | ATTR_ATIME;
- attr.ia_mtime = attr.ia_ctime = attr.ia_atime =
- CURRENT_TIME;
- obdfs_setattr(file->f_dentry, &attr);
- }
- EXIT;
- return retval;
-}
-
-
-/* XXX this does not need to do anything for data, it _does_ need to
- call setattr */
-int obdfs_fsync(struct file *file, struct dentry *dentry, int data)
-{
- return 0;
-}
-
-struct file_operations obdfs_file_operations = {
- read: generic_file_read,
- write: obdfs_file_write,
- mmap: generic_file_mmap,
- fsync: NULL
-};
-
-
-struct inode_operations obdfs_file_inode_operations = {
- truncate: obdfs_truncate,
- setattr: obdfs_setattr
-};
-
+++ /dev/null
-/*
- * OBDFS Super operations - also used for Lustre file system
- *
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- * Copryright (C) 1999 Stelias Computing Inc. <braam@stelias.com>
- * Copryright (C) 1999 Seagate Technology Inc.
- *
- */
-#define __NO_VERSION__
-#include <linux/fs.h>
-#include <linux/locks.h>
-#include <linux/swap.h>
-
-#include <linux/obd_support.h>
-#include <linux/obd_class.h>
-#include <linux/obdfs.h>
-
-
-/* XXX temporary until the real function is available from kernel
- * XXX set this to memory size in pages for max page cache size
- */
-#define nr_free_buffer_pages() 32768
-
-/* Defines for page buf daemon */
-struct pupd_prm {
- int nfract; /* Percentage of buffer cache dirty to
- activate bdflush */
- int ndirty; /* Maximum number of dirty blocks to write out per
- wake-cycle */
- int nrefill; /* Number of clean buffers to try to obtain
- each time we call refill */
- int nref_dirt; /* Dirty buffer threshold for activating bdflush
- when trying to refill buffers. */
- int interval; /* jiffies delay between pupdate flushes */
- int age_buffer; /* Time for normal buffer to age before we flush it */
- int age_super; /* Time for superblock to age before we flush it */
-};
-
-
-static struct pupdated {
- int active;
- wait_queue_head_t waitq;
- struct timer_list timer;
- struct pupd_prm parms;
-} pupdated = {
- active: -1,
- parms: {40, 1024, 64, 256, 1*HZ, 30*HZ, 5*HZ }
-};
-
-
-/* Called with the superblock list lock held */
-static int obdfs_enqueue_pages(struct inode *inode, struct obdo **obdo,
- int nr_slots, struct page **pages, char **bufs,
- obd_size *counts, obd_off *offsets,
- obd_flag *flag, unsigned long check_time)
-{
- struct list_head *page_list = obdfs_iplist(inode);
- struct list_head *tmp;
- int num = 0;
-
- ENTRY;
-
- tmp = page_list;
- /* Traverse list in reverse order, so we do FIFO, not LIFO order */
- while ( (tmp = tmp->prev) != page_list && num < nr_slots ) {
- struct obdfs_pgrq *req;
- struct page *page;
-
- req = list_entry(tmp, struct obdfs_pgrq, rq_plist);
- page = req->rq_page;
-
-
- if (req->rq_jiffies > check_time)
- break; /* pages are in chronological order */
-
- /* Only allocate the obdo if we will actually do I/O here */
- if ( !*obdo ) {
- OIDEBUG(inode);
- *obdo = obdo_fromid(IID(inode), inode->i_ino,
- OBD_MD_FLNOTOBD);
- if ( IS_ERR(*obdo) ) {
- int err = PTR_ERR(*obdo);
- *obdo = NULL;
-
- EXIT;
- return err;
- }
-
- /* FIXME revisit fromid & from_inode */
- obdfs_from_inode(*obdo, inode);
- *flag = OBD_BRW_CREATE;
- }
-
- /* Remove request from list before write to avoid conflict.
- * Note that obdfs_pgrq_del() also deletes the request.
- */
- obdfs_pgrq_del(req);
- if ( !page ) {
- CDEBUG(D_CACHE, "no page \n");
- continue;
- }
-
- bufs[num] = (char *)page_address(page);
- pages[num] = page;
- counts[num] = PAGE_SIZE;
- offsets[num] = ((obd_off)page->index) << PAGE_SHIFT;
- CDEBUG(D_INFO, "ENQ inode %ld, page %p addr %p to vector\n",
- inode->i_ino, page, (char *)page_address(page));
- num++;
- }
-
- if (!list_empty(page_list))
- CDEBUG(D_INFO, "inode %ld list not empty\n", inode->i_ino);
- CDEBUG(D_INFO, "added %d page(s) to vector\n", num);
-
- EXIT;
- return num;
-} /* obdfs_enqueue_pages */
-
-/* Dequeue cached pages for a dying inode without writing them to disk. */
-void obdfs_dequeue_pages(struct inode *inode)
-{
- struct list_head *tmp;
-
- ENTRY;
- obd_down(&obdfs_i2sbi(inode)->osi_list_mutex);
- tmp = obdfs_islist(inode);
- if ( list_empty(tmp) ) {
- CDEBUG(D_INFO, "no dirty pages for inode %ld\n", inode->i_ino);
- obd_up(&obdfs_i2sbi(inode)->osi_list_mutex);
- EXIT;
- return;
- }
-
- /* take it out of the super list */
- list_del(tmp);
- INIT_LIST_HEAD(obdfs_islist(inode));
-
- tmp = obdfs_iplist(inode);
- while ( (tmp = tmp->prev) != obdfs_iplist(inode) ) {
- struct obdfs_pgrq *req;
- struct page *page;
-
- req = list_entry(tmp, struct obdfs_pgrq, rq_plist);
- page = req->rq_page;
- /* take it out of the list and free */
- obdfs_pgrq_del(req);
- /* now put the page away */
- put_page(page);
- }
-
- obd_up(&obdfs_i2sbi(inode)->osi_list_mutex);
-
- /* decrement inode reference for page cache */
- atomic_dec(&inode->i_count);
- EXIT;
-}
-
-/* This value is not arbitrarily chosen. KIO_STATIC_PAGES from linux/iobuf.h */
-#define MAX_IOVEC (KIO_STATIC_PAGES - 1)
-
-/* Remove writeback requests for the superblock */
-int obdfs_flush_reqs(struct list_head *inode_list, unsigned long check_time)
-{
- struct list_head *tmp;
- unsigned long max_io, total_io = 0;
- obd_count num_io;
- obd_count num_obdos;
- struct inode *inodes[MAX_IOVEC]; /* write data back to these */
- struct page *pages[MAX_IOVEC]; /* call put_page on these */
- struct obdo *obdos[MAX_IOVEC];
- char *bufs[MAX_IOVEC];
- obd_size counts[MAX_IOVEC];
- obd_off offsets[MAX_IOVEC];
- obd_flag flags[MAX_IOVEC];
- obd_count bufs_per_obdo[MAX_IOVEC];
- int err = 0;
- struct obdfs_sb_info *sbi;
-
- ENTRY;
- if (!inode_list) {
- CDEBUG(D_INODE, "no list\n");
- EXIT;
- return 0;
- }
-
- sbi = list_entry(inode_list, struct obdfs_sb_info, osi_inodes);
-
- obd_down(&sbi->osi_list_mutex);
- if ( list_empty(inode_list) ) {
- CDEBUG(D_INFO, "list empty\n");
- obd_up(&sbi->osi_list_mutex);
- EXIT;
- return 0;
- }
-
- /* If we are forcing a write, write out all dirty pages */
- max_io = check_time == ~0UL ? 1<<31 : pupdated.parms.ndirty;
- CDEBUG(D_INFO, "max_io = %lu\n", max_io);
-
- /* Add each inode's dirty pages to a write vector, and write it.
- * Traverse list in reverse order, so we do FIFO, not LIFO order
- */
- again:
- tmp = inode_list;
- num_io = 0;
- num_obdos = 0;
- while ( (tmp = tmp->prev) != inode_list && total_io < max_io) {
- struct obdfs_inode_info *ii;
- struct inode *inode;
- int res;
-
- ii = list_entry(tmp, struct obdfs_inode_info, oi_inodes);
- inode = list_entry(ii, struct inode, u);
- inodes[num_obdos] = inode;
- obdos[num_obdos] = NULL;
- CDEBUG(D_INFO, "checking inode %ld pages\n", inode->i_ino);
-
- /* Make sure we reference "inode" and not "inodes[num_obdos]",
- * as num_obdos will change after the loop is run.
- */
- if (!list_empty(obdfs_iplist(inode))) {
- res = obdfs_enqueue_pages(inode, &obdos[num_obdos],
- MAX_IOVEC - num_io,
- &pages[num_io], &bufs[num_io],
- &counts[num_io],
- &offsets[num_io],
- &flags[num_obdos],
- check_time);
- CDEBUG(D_INFO, "FLUSH inode %ld, pages flushed: %d\n",
- inode->i_ino, res);
- if ( res < 0 ) {
- CDEBUG(D_INODE,
- "fatal: unable to enqueue inode %ld (err %d)\n",
- inode->i_ino, res);
- /* XXX Move bad inode to end of list so we can
- * continue with flushing list. This is a
- * temporary measure to avoid machine lockups.
- * Maybe if we have -ENOENT, simply discard.
- */
- list_del(tmp);
- list_add(tmp, inode_list);
- err = res;
- EXIT;
- goto BREAK;
- }
- if (res == 0)
- continue;
-
- num_io += res;
- total_io += res;
- bufs_per_obdo[num_obdos] = res;
- num_obdos++;
-
- if ( num_io == MAX_IOVEC ) {
- obd_up(&sbi->osi_list_mutex);
- err = obdfs_do_vec_wr(inodes, num_io, num_obdos,
- obdos, bufs_per_obdo,
- pages, bufs, counts,
- offsets, flags);
- if ( err ) {
- CDEBUG(D_INODE,
- "fatal: do_vec_wr err=%d\n",
- err);
- EXIT;
- goto ERR;
- }
- obd_down(&sbi->osi_list_mutex);
- goto again;
- }
- }
- }
-
-BREAK:
- obd_up(&sbi->osi_list_mutex);
-
- /* flush any remaining I/Os */
- if ( num_io ) {
- err = obdfs_do_vec_wr(inodes, num_io, num_obdos, obdos,
- bufs_per_obdo, pages, bufs, counts,
- offsets, flags);
- if (err)
- CDEBUG(D_INODE, "fatal: unable to do vec_wr (err %d)\n", err);
- num_io = 0;
- num_obdos = 0;
- }
-
- /* Remove inode from superblock dirty list when no more pages.
- * Make sure we don't point at the current inode with tmp
- * when we re-init the list on the inode, or we will loop.
- */
- obd_down(&sbi->osi_list_mutex);
- tmp = inode_list;
- while ( (tmp = tmp->prev) != inode_list ) {
- struct obdfs_inode_info *ii;
- struct inode *inode;
-
- ii = list_entry(tmp, struct obdfs_inode_info, oi_inodes);
- inode = list_entry(ii, struct inode, u);
- CDEBUG(D_INFO, "checking inode %ld empty\n", inode->i_ino);
- if (list_empty(obdfs_iplist(inode))) {
- CDEBUG(D_INFO, "remove inode %ld from dirty list\n",
- inode->i_ino);
- tmp = tmp->next;
- list_del(obdfs_islist(inode));
- /* decrement inode reference for page cache */
- atomic_dec(&inode->i_count);
- INIT_LIST_HEAD(obdfs_islist(inode));
- }
- }
- obd_up(&sbi->osi_list_mutex);
-
- CDEBUG(D_INFO, "flushed %ld pages in total\n", total_io);
- EXIT;
-ERR:
- return err ? err : total_io;
-} /* obdfs_flush_reqs */
-
-
-/* Walk all of the superblocks and write out blocks which are too old.
- * Return the maximum number of blocks written for a single filesystem.
- */
-int obdfs_flush_dirty_pages(unsigned long check_time)
-{
- struct list_head *sl;
- int max = 0;
-
- /* ENTRY; */
- sl = &obdfs_super_list;
- while ( (sl = sl->prev) != &obdfs_super_list ) {
- struct obdfs_sb_info *sbi =
- list_entry(sl, struct obdfs_sb_info, osi_list);
- int ret;
-
- /* walk write requests here, use the sb, check the time */
- ret = obdfs_flush_reqs(&sbi->osi_inodes, check_time);
- /* XXX handle error? What to do with it? */
-
- max = ret > max ? ret : max;
- }
- if (max) { EXIT; }
- return max;
-} /* obdfs_flush_dirty_pages */
-
-
-static void pupdate_wakeup(unsigned long l)
-{
- wake_up_interruptible(&pupdated.waitq);
-}
-
-
-static int pupdate(void *unused)
-{
- u_long flags;
- int interval = pupdated.parms.interval;
- long age = pupdated.parms.age_buffer;
- int wrote = 0;
-
- if (pupdated.active >= 0) {
- CDEBUG(D_CACHE, "attempted to run multiple pupdates\n");
- return 1;
- }
-
- init_timer(&pupdated.timer);
- init_waitqueue_head(&pupdated.waitq);
- pupdated.timer.function = pupdate_wakeup;
-
- exit_files(current);
- exit_mm(current);
- daemonize();
-
- current->session = 1;
- current->pgrp = 1;
- strcpy(current->comm, "pupdated");
-
- CDEBUG(D_CACHE, "pupdated activated...\n");
- pupdated.active = 1;
-
- spin_lock_irqsave(¤t->sigmask_lock, flags);
- flush_signals(current);
- sigfillset(¤t->blocked);
- recalc_sigpending(current);
- spin_unlock_irqrestore(¤t->sigmask_lock, flags);
-
- do {
- long dirty_limit;
-
- /* update interval */
- if (pupdated.active == 1 && interval) {
- mod_timer(&pupdated.timer, jiffies + interval);
- interruptible_sleep_on(&pupdated.waitq);
- }
- if (pupdated.active == 0) {
- del_timer(&pupdated.timer);
- /* If stopped, we flush one last time... */
- }
-
- /* asynchronous setattr etc for the future ...
- obdfs_flush_dirty_inodes(jiffies - pupdated.parms.age_super);
- */
- dirty_limit = nr_free_buffer_pages() * pupdated.parms.nfract / 100;
-
- if (obdfs_cache_count > dirty_limit) {
- interval = 0;
- if (wrote < pupdated.parms.ndirty)
- age >>= 1;
- if (wrote)
- CDEBUG(D_CACHE, "wrote %d, age %ld, interval %d\n",
- wrote, age, interval);
- } else {
- if (wrote < pupdated.parms.ndirty >> 1 &&
- obdfs_cache_count < dirty_limit / 2) {
- interval = pupdated.parms.interval;
- age = pupdated.parms.age_buffer;
- if (wrote)
- CDEBUG(D_INFO,
- "wrote %d, age %ld, interval %d\n",
- wrote, age, interval);
- } else if (obdfs_cache_count > dirty_limit / 2) {
- interval >>= 1;
- if (wrote < pupdated.parms.ndirty)
- age >>= 1;
- if (wrote)
- CDEBUG(D_CACHE,
- "wrote %d, age %ld, interval %d\n",
- wrote, age, interval);
- }
- }
-
- wrote = obdfs_flush_dirty_pages(jiffies - age);
- if (wrote) {
- CDEBUG(D_CACHE,
- "dirty_limit %ld, cache_count %ld, wrote %d\n",
- dirty_limit, obdfs_cache_count, wrote);
- run_task_queue(&tq_disk);
- }
- } while (pupdated.active == 1);
-
- CDEBUG(D_CACHE, "pupdated stopped...\n");
- pupdated.active = -1;
- wake_up_interruptible (&pupdated.waitq);
- return 0;
-}
-
-
-int obdfs_flushd_init(void)
-{
- /*
- kernel_thread(bdflush, NULL, CLONE_FS | CLONE_FILES | CLONE_SIGHAND);
- */
- kernel_thread(pupdate, NULL, 0);
- CDEBUG(D_PSDEV, "flushd inited\n");
- return 0;
-}
-
-int obdfs_flushd_cleanup(void)
-{
- ENTRY;
-
- /* Shut down pupdated. */
- if (pupdated.active > 0) {
- CDEBUG(D_CACHE, "inform pupdated\n");
- pupdated.active = 0;
- wake_up_interruptible(&pupdated.waitq);
-
- CDEBUG(D_CACHE, "wait for pupdated\n");
- while (pupdated.active == 0) {
- interruptible_sleep_on(&pupdated.waitq);
- }
- CDEBUG(D_CACHE, "done waiting for pupdated\n");
- }
-
- EXIT;
- return 0;
-}
+++ /dev/null
-/*
- * linux/fs/obdfs/namei.c
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- * from
- *
- * linux/fs/ext2/namei.c
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- *
- * Big-endian to little-endian byte-swapping/bitmaps by
- * David S. Miller (davem@caip.rutgers.edu), 1995
- * Directory entry file type support and forward compatibility hooks
- * for B-tree directories by Theodore Ts'o (tytso@mit.edu), 1998
- *
- * Changes for use in OBDFS
- * Copyright (c) 1999, Seagate Technology Inc.
- * Copyright (C) 2001, Cluster File Systems, Inc.
- * Rewritten based on recent ext2 page cache use.
- *
- */
-
-#include <linux/fs.h>
-#include <linux/locks.h>
-#include <linux/quotaops.h>
-
-#define DEBUG_SUBSYSTEM S_OBDFS
-
-#include <linux/obd_support.h>
-#include <linux/obdfs.h>
-extern struct address_space_operations obdfs_aops;
-
-/* from super.c */
-extern void obdfs_change_inode(struct inode *inode);
-extern int obdfs_setattr(struct dentry *de, struct iattr *attr);
-
-/* from dir.c */
-extern int ext2_add_link (struct dentry *dentry, struct inode *inode);
-ino_t obdfs_inode_by_name(struct inode * dir, struct dentry *dentry, int *typ);
-int ext2_make_empty(struct inode *inode, struct inode *parent);
-struct ext2_dir_entry_2 * ext2_find_entry (struct inode * dir,
- struct dentry *dentry, struct page ** res_page);
-int ext2_delete_entry (struct ext2_dir_entry_2 * dir, struct page * page );
-int ext2_empty_dir (struct inode * inode);
-struct ext2_dir_entry_2 * ext2_dotdot (struct inode *dir, struct page **p);
-void ext2_set_link(struct inode *dir, struct ext2_dir_entry_2 *de,
- struct page *page, struct inode *inode);
-
-/*
- * Couple of helper functions - make the code slightly cleaner.
- */
-static inline void ext2_inc_count(struct inode *inode)
-{
- inode->i_nlink++;
- obdfs_change_inode(inode);
-}
-
-/* postpone the disk update until the inode really goes away */
-static inline void ext2_dec_count(struct inode *inode)
-{
- inode->i_nlink--;
- if (inode->i_nlink > 0)
- obdfs_change_inode(inode);
-}
-
-static inline int ext2_add_nondir(struct dentry *dentry, struct inode *inode)
-{
- int err;
- err = ext2_add_link(dentry, inode);
- if (!err) {
- d_instantiate(dentry, inode);
- return 0;
- }
- ext2_dec_count(inode);
- iput(inode);
- return err;
-}
-
-/* methods */
-static struct dentry *obdfs_lookup(struct inode * dir, struct dentry *dentry)
-{
- struct obdo *oa;
- struct inode * inode = NULL;
- int type;
- ino_t ino;
-
- ENTRY;
- if (dentry->d_name.len > EXT2_NAME_LEN)
- return ERR_PTR(-ENAMETOOLONG);
-
- ino = obdfs_inode_by_name(dir, dentry, &type);
- if (!ino)
- goto negative;
-
- oa = obdo_fromid(IID(dir), ino, type,
- OBD_MD_FLNOTOBD | OBD_MD_FLBLOCKS);
- if ( IS_ERR(oa) ) {
- CERROR("obdo_fromid failed\n");
- EXIT;
- return ERR_PTR(-EACCES);
- }
-
- inode = iget4(dir->i_sb, ino, NULL, oa);
- obdo_free(oa);
-
- if (!inode)
- return ERR_PTR(-EACCES);
-
- negative:
- d_add(dentry, inode);
- return NULL;
-}
-
-
-/*
- * NOTE! unlike strncmp, ext2_match returns 1 for success, 0 for failure.
- *
- * `len <= EXT2_NAME_LEN' is guaranteed by caller.
- * `de != NULL' is guaranteed by caller.
- */
-static inline int ext2_match (int len, const char * const name,
- struct ext2_dir_entry_2 * de)
-{
- if (len != de->name_len)
- return 0;
- if (!de->inode)
- return 0;
- return !memcmp(name, de->name, len);
-}
-
-static struct inode *obdfs_new_inode(struct inode *dir, int mode)
-{
- struct obdo *oa;
- struct inode *inode;
- int err;
-
- ENTRY;
- oa = obdo_alloc();
- if (!oa) {
- EXIT;
- return ERR_PTR(-ENOMEM);
- }
-
- /* Send a hint to the create method on the type of file to create */
- oa->o_mode = mode;
- oa->o_valid |= OBD_MD_FLMODE;
- CDEBUG(D_INODE, "\n");
- err = obd_create(IID(dir), oa);
- CDEBUG(D_INODE, "\n");
-
- if ( err ) {
- CERROR("new_inode - fatal: err %d\n", err);
- obdo_free(oa);
- EXIT;
- return ERR_PTR(err);
- }
- CDEBUG(D_INODE, "obdo mode %o\n", oa->o_mode);
-
- inode = iget4(dir->i_sb, (ino_t)oa->o_id, NULL, oa);
- CDEBUG(D_INODE, "\n");
-
- if (!inode) {
- CERROR("new_inode -fatal: %ld\n", (long)oa->o_id);
- obd_destroy(IID(dir), oa);
- obdo_free(oa);
- EXIT;
- return ERR_PTR(-EIO);
- }
- obdo_free(oa);
-
- if (!list_empty(&inode->i_dentry)) {
- CERROR("new_inode -fatal: aliases %ld, ct %d lnk %d\n",
- (long)oa->o_id,
- atomic_read(&inode->i_count),
- inode->i_nlink);
- obd_destroy(IID(dir), oa);
- iput(inode);
- EXIT;
- return ERR_PTR(-EIO);
- }
-
- EXIT;
- return inode;
-} /* obdfs_new_inode */
-
-
-/*
- * By the time this is called, we already have created
- * the directory cache entry for the new file, but it
- * is so far negative - it has no inode.
- *
- * If the create succeeds, we fill in the inode information
- * with d_instantiate().
- */
-static int obdfs_create (struct inode * dir, struct dentry * dentry, int mode)
-{
- struct inode * inode = obdfs_new_inode (dir, mode);
- int err = PTR_ERR(inode);
- if (!IS_ERR(inode)) {
- inode->i_op = &obdfs_file_inode_operations;
- inode->i_fop = &obdfs_file_operations;
- inode->i_mapping->a_ops = &obdfs_aops;
- err = ext2_add_nondir(dentry, inode);
- }
- return err;
-} /* obdfs_create */
-
-
-static int obdfs_mknod (struct inode * dir, struct dentry *dentry, int mode, int rdev)
-{
- struct inode * inode = obdfs_new_inode (dir, mode);
- int err = PTR_ERR(inode);
- if (!IS_ERR(inode)) {
- init_special_inode(inode, mode, rdev);
- obdfs_change_inode(inode);
- err = ext2_add_nondir(dentry, inode);
- }
- return err;
-}
-
-static int obdfs_symlink (struct inode * dir, struct dentry * dentry,
- const char * symname)
-{
- struct super_block * sb = dir->i_sb;
- int err = -ENAMETOOLONG;
- unsigned l = strlen(symname)+1;
- struct inode * inode;
- struct obdfs_inode_info *oinfo;
-
- if (l > sb->s_blocksize)
- goto out;
-
- inode = obdfs_new_inode (dir, S_IFLNK | S_IRWXUGO);
- err = PTR_ERR(inode);
- if (IS_ERR(inode))
- goto out;
-
- oinfo = obdfs_i2info(inode);
- if (l >= sizeof(oinfo->oi_inline)) {
- /* slow symlink */
- inode->i_op = &page_symlink_inode_operations;
- inode->i_mapping->a_ops = &obdfs_aops;
- err = block_symlink(inode, symname, l);
- if (err)
- goto out_fail;
- } else {
- /* fast symlink */
- inode->i_op = &obdfs_fast_symlink_inode_operations;
- memcpy(oinfo->oi_inline, symname, l);
- inode->i_size = l-1;
- }
- obdfs_change_inode(inode);
-
- err = ext2_add_nondir(dentry, inode);
-out:
- return err;
-
-out_fail:
- ext2_dec_count(inode);
- iput (inode);
- goto out;
-}
-
-
-
-static int obdfs_link (struct dentry * old_dentry, struct inode * dir,
- struct dentry *dentry)
-{
- struct inode *inode = old_dentry->d_inode;
-
- if (S_ISDIR(inode->i_mode))
- return -EPERM;
-
- if (inode->i_nlink >= EXT2_LINK_MAX)
- return -EMLINK;
-
- inode->i_ctime = CURRENT_TIME;
- ext2_inc_count(inode);
- atomic_inc(&inode->i_count);
-
- return ext2_add_nondir(dentry, inode);
-}
-
-
-static int obdfs_mkdir(struct inode * dir, struct dentry * dentry, int mode)
-{
- struct inode * inode;
- int err = -EMLINK;
- ENTRY;
-
- if (dir->i_nlink >= EXT2_LINK_MAX)
- goto out;
-
- ext2_inc_count(dir);
-
- inode = obdfs_new_inode (dir, S_IFDIR | mode);
- err = PTR_ERR(inode);
- if (IS_ERR(inode))
- goto out_dir;
-
- inode->i_op = &obdfs_dir_inode_operations;
- inode->i_fop = &obdfs_dir_operations;
- inode->i_mapping->a_ops = &obdfs_aops;
-
- ext2_inc_count(inode);
-
- err = ext2_make_empty(inode, dir);
- if (err)
- goto out_fail;
-
- err = ext2_add_link(dentry, inode);
- if (err)
- goto out_fail;
-
- d_instantiate(dentry, inode);
-out:
- EXIT;
- return err;
-
-out_fail:
- ext2_dec_count(inode);
- ext2_dec_count(inode);
- iput(inode);
- EXIT;
-out_dir:
- ext2_dec_count(dir);
- EXIT;
- goto out;
-}
-
-static int obdfs_unlink(struct inode * dir, struct dentry *dentry)
-{
- struct inode * inode = dentry->d_inode;
- struct ext2_dir_entry_2 * de;
- struct page * page;
- int err = -ENOENT;
-
- de = ext2_find_entry (dir, dentry, &page);
- if (!de)
- goto out;
-
- err = ext2_delete_entry (de, page);
- if (err)
- goto out;
-
- inode->i_ctime = dir->i_ctime;
- ext2_dec_count(inode);
- err = 0;
-out:
- return err;
-}
-
-
-static int obdfs_rmdir (struct inode * dir, struct dentry *dentry)
-{
- struct inode * inode = dentry->d_inode;
- int err = -ENOTEMPTY;
-
- if (ext2_empty_dir(inode)) {
- err = obdfs_unlink(dir, dentry);
- if (!err) {
- inode->i_size = 0;
- ext2_dec_count(inode);
- ext2_dec_count(dir);
- }
- }
- return err;
-}
-
-static int obdfs_rename (struct inode * old_dir, struct dentry * old_dentry,
- struct inode * new_dir, struct dentry * new_dentry )
-{
- struct inode * old_inode = old_dentry->d_inode;
- struct inode * new_inode = new_dentry->d_inode;
- struct page * dir_page = NULL;
- struct ext2_dir_entry_2 * dir_de = NULL;
- struct page * old_page;
- struct ext2_dir_entry_2 * old_de;
- int err = -ENOENT;
-
- old_de = ext2_find_entry (old_dir, old_dentry, &old_page);
- if (!old_de)
- goto out;
-
- if (S_ISDIR(old_inode->i_mode)) {
- err = -EIO;
- dir_de = ext2_dotdot(old_inode, &dir_page);
- if (!dir_de)
- goto out_old;
- }
-
- if (new_inode) {
- struct page *new_page;
- struct ext2_dir_entry_2 *new_de;
-
- err = -ENOTEMPTY;
- if (dir_de && !ext2_empty_dir (new_inode))
- goto out_dir;
-
- err = -ENOENT;
- new_de = ext2_find_entry (new_dir, new_dentry, &new_page);
- if (!new_de)
- goto out_dir;
- ext2_inc_count(old_inode);
- ext2_set_link(new_dir, new_de, new_page, old_inode);
- new_inode->i_ctime = CURRENT_TIME;
- if (dir_de)
- new_inode->i_nlink--;
- ext2_dec_count(new_inode);
- } else {
- if (dir_de) {
- err = -EMLINK;
- if (new_dir->i_nlink >= EXT2_LINK_MAX)
- goto out_dir;
- }
- ext2_inc_count(old_inode);
- err = ext2_add_link(new_dentry, old_inode);
- if (err) {
- ext2_dec_count(old_inode);
- goto out_dir;
- }
- if (dir_de)
- ext2_inc_count(new_dir);
- }
-
- ext2_delete_entry (old_de, old_page);
- ext2_dec_count(old_inode);
-
- if (dir_de) {
- ext2_set_link(old_inode, dir_de, dir_page, new_dir);
- ext2_dec_count(old_dir);
- }
- return 0;
-
-
-out_dir:
- if (dir_de) {
- kunmap(dir_page);
- page_cache_release(dir_page);
- }
-out_old:
- kunmap(old_page);
- page_cache_release(old_page);
-out:
- return err;
-}
-
-struct inode_operations obdfs_dir_inode_operations = {
- create: obdfs_create,
- lookup: obdfs_lookup,
- link: obdfs_link,
- unlink: obdfs_unlink,
- symlink: obdfs_symlink,
- mkdir: obdfs_mkdir,
- rmdir: obdfs_rmdir,
- mknod: obdfs_mknod,
- rename: obdfs_rename,
- setattr: obdfs_setattr
-};
+++ /dev/null
-/*
- * OBDFS Super operations
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * Copyright (C) 1996, 1997, Olaf Kirch <okir@monad.swb.de>
- * Copryright (C) 1999 Stelias Computing Inc,
- * (author Peter J. Braam <braam@stelias.com>)
- * Copryright (C) 1999 Seagate Technology Inc.
-*/
-
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/locks.h>
-#include <linux/unistd.h>
-#include <linux/version.h>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <asm/uaccess.h>
-#include <linux/vmalloc.h>
-#include <asm/segment.h>
-#include <linux/mm.h>
-#include <linux/pagemap.h>
-#include <linux/smp_lock.h>
-
-#define DEBUG_SUBSYSTEM S_OBDFS
-
-#include <linux/obd_support.h>
-#include <linux/obd_ext2.h>
-#include <linux/obdfs.h>
-
-void obdfs_change_inode(struct inode *inode);
-
-static int cache_writes = 0;
-
-
-/* page cache support stuff */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,10)
-/*
- * Add a page to the dirty page list.
- */
-void __set_page_dirty(struct page *page)
-{
- struct address_space *mapping;
- spinlock_t *pg_lock;
-
- pg_lock = PAGECACHE_LOCK(page);
- spin_lock(pg_lock);
-
- mapping = page->mapping;
- spin_lock(&mapping->page_lock);
-
- list_del(&page->list);
- list_add(&page->list, &mapping->dirty_pages);
-
- spin_unlock(&mapping->page_lock);
- spin_unlock(pg_lock);
-
- if (mapping->host)
- mark_inode_dirty_pages(mapping->host);
-}
-/*
- * Remove page from dirty list
- */
-void __set_page_clean(struct page *page)
-{
- struct address_space *mapping = page->mapping;
- struct inode *inode;
-
- if (!mapping)
- return;
-
- list_del(&page->list);
- list_add(&page->list, &mapping->clean_pages);
-
- inode = mapping->host;
- if (list_empty(&mapping->dirty_pages)) {
- CDEBUG(D_INODE, "inode clean\n");
- inode->i_state &= ~I_DIRTY_PAGES;
- }
- EXIT;
-}
-
-#else
-/*
- * Add a page to the dirty page list.
- */
-void set_page_dirty(struct page *page)
-{
- if (!test_and_set_bit(PG_dirty, &page->flags)) {
- struct address_space *mapping = page->mapping;
-
- if (mapping) {
- spin_lock(&pagecache_lock);
- list_del(&page->list);
- list_add(&page->list, &mapping->dirty_pages);
- spin_unlock(&pagecache_lock);
-
- if (mapping->host)
- mark_inode_dirty_pages(mapping->host);
- }
- }
-}
-/*
- * Remove page from dirty list
- */
-void __set_page_clean(struct page *page)
-{
- struct address_space *mapping = page->mapping;
- struct inode *inode;
-
- if (!mapping)
- return;
-
- spin_lock(&pagecache_lock);
- list_del(&page->list);
- list_add(&page->list, &mapping->clean_pages);
-
- inode = mapping->host;
- if (list_empty(&mapping->dirty_pages)) {
- CDEBUG(D_INODE, "inode clean\n");
- inode->i_state &= ~I_DIRTY_PAGES;
- }
- spin_unlock(&pagecache_lock);
- EXIT;
-}
-
-#endif
-
-
-inline void set_page_clean(struct page *page)
-{
- if (PageDirty(page)) {
- ClearPageDirty(page);
- __set_page_clean(page);
- }
-}
-
-/* SYNCHRONOUS I/O to object storage for an inode -- object attr will be updated too */
-static int obdfs_brw(int rw, struct inode *inode, struct page *page, int create)
-{
- obd_count num_obdo = 1;
- obd_count bufs_per_obdo = 1;
- struct obdo *oa;
- obd_size count = PAGE_SIZE;
- obd_off offset = ((obd_off)page->index) << PAGE_SHIFT;
- obd_flag flags = create ? OBD_BRW_CREATE : 0;
- int err;
-
- ENTRY;
-
- oa = obdo_alloc();
- if ( !oa ) {
- EXIT;
- return -ENOMEM;
- }
- oa->o_valid = OBD_MD_FLNOTOBD;
- obdfs_from_inode(oa, inode);
-
- err = obd_brw(rw, IID(inode), num_obdo, &oa, &bufs_per_obdo,
- &page, &count, &offset, &flags);
- //if ( !err )
- // obdfs_to_inode(inode, oa); /* copy o_blocks to i_blocks */
-
- obdo_free(oa);
- EXIT;
- return err;
-} /* obdfs_brw */
-
-extern void set_page_clean(struct page *);
-
-/* SYNCHRONOUS I/O to object storage for an inode -- object attr will be updated too */
-static int obdfs_commit_page(struct page *page, int create, int from, int to)
-{
- struct inode *inode = page->mapping->host;
- obd_count num_obdo = 1;
- obd_count bufs_per_obdo = 1;
- struct obdo *oa;
- obd_size count = to;
- obd_off offset = (((obd_off)page->index) << PAGE_SHIFT);
- obd_flag flags = create ? OBD_BRW_CREATE : 0;
- int err;
-
- ENTRY;
- oa = obdo_alloc();
- if ( !oa ) {
- EXIT;
- return -ENOMEM;
- }
- oa->o_valid = OBD_MD_FLNOTOBD;
- obdfs_from_inode(oa, inode);
-
- CDEBUG(D_INODE, "commit_page writing (at %d) to %d, count %Ld\n",
- from, to, count);
-
- err = obd_brw(WRITE, IID(inode), num_obdo, &oa, &bufs_per_obdo,
- &page, &count, &offset, &flags);
- if ( !err ) {
- SetPageUptodate(page);
- set_page_clean(page);
- }
-
- //if ( !err )
- // obdfs_to_inode(inode, oa); /* copy o_blocks to i_blocks */
-
- obdo_free(oa);
- EXIT;
- return err;
-} /* obdfs_brw */
-
-/* returns the page unlocked, but with a reference */
-int obdfs_writepage(struct page *page)
-{
- int rc;
- struct inode *inode = page->mapping->host;
- ENTRY;
- CERROR("---> writepage called ino %ld!\n", inode->i_ino);
- BUG();
- rc = obdfs_brw(OBD_BRW_WRITE, inode, page, 1);
- if ( !rc ) {
- set_page_clean(page);
- } else {
- CDEBUG(D_INODE, "--> GRR %d\n", rc);
- }
- EXIT;
- return rc;
-}
-
-
-void write_inode_pages(struct inode *inode)
-{
- struct list_head *tmp = &inode->i_mapping->dirty_pages;
-
- while ( (tmp = tmp->next) != &inode->i_mapping->dirty_pages) {
- struct page *page;
- page = list_entry(tmp, struct page, list);
- obdfs_writepage(page);
- }
-}
-
-
-/* returns the page unlocked, but with a reference */
-int obdfs_readpage(struct file *file, struct page *page)
-{
- struct inode *inode = page->mapping->host;
- int rc;
-
- ENTRY;
-
- if ( ((inode->i_size + PAGE_CACHE_SIZE -1)>>PAGE_SHIFT)
- <= page->index) {
- memset(kmap(page), 0, PAGE_CACHE_SIZE);
- kunmap(page);
- goto readpage_out;
- }
-
- if (Page_Uptodate(page)) {
- EXIT;
- goto readpage_out;
- }
-
- rc = obdfs_brw(READ, inode, page, 0);
- if ( rc ) {
- EXIT;
- return rc;
- }
-
- readpage_out:
- SetPageUptodate(page);
- obd_unlock_page(page);
- EXIT;
- return 0;
-} /* obdfs_readpage */
-
-int obdfs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
-{
- struct inode *inode = page->mapping->host;
- obd_off offset = ((obd_off)page->index) << PAGE_SHIFT;
- int rc = 0;
- ENTRY;
-
- kmap(page);
- if (Page_Uptodate(page)) {
- EXIT;
- goto prepare_done;
- }
-
- if ( (from <= offset) && (to >= offset + PAGE_SIZE) ) {
- EXIT;
- return 0;
- }
-
- rc = obdfs_brw(READ, inode, page, 0);
- if ( !rc ) {
- SetPageUptodate(page);
- }
-
- prepare_done:
- set_page_dirty(page);
- //SetPageDirty(page);
- EXIT;
- return rc;
-}
-
-
-#if 0
-
-
-
-static kmem_cache_t *obdfs_pgrq_cachep = NULL;
-
-int obdfs_init_pgrqcache(void)
-{
- ENTRY;
- if (obdfs_pgrq_cachep == NULL) {
- CDEBUG(D_CACHE, "allocating obdfs_pgrq_cache\n");
- obdfs_pgrq_cachep = kmem_cache_create("obdfs_pgrq",
- sizeof(struct obdfs_pgrq),
- 0, SLAB_HWCACHE_ALIGN,
- NULL, NULL);
- if (obdfs_pgrq_cachep == NULL) {
- EXIT;
- return -ENOMEM;
- } else {
- CDEBUG(D_CACHE, "allocated cache at %p\n",
- obdfs_pgrq_cachep);
- }
- } else {
- CDEBUG(D_CACHE, "using existing cache at %p\n",
- obdfs_pgrq_cachep);
- }
- EXIT;
- return 0;
-} /* obdfs_init_wreqcache */
-
-inline void obdfs_pgrq_del(struct obdfs_pgrq *pgrq)
-{
- --obdfs_cache_count;
- CDEBUG(D_INFO, "deleting page %p from list [count %ld]\n",
- pgrq->rq_page, obdfs_cache_count);
- list_del(&pgrq->rq_plist);
- OBDClearCachePage(pgrq->rq_page);
- kmem_cache_free(obdfs_pgrq_cachep, pgrq);
-}
-
-void obdfs_cleanup_pgrqcache(void)
-{
- ENTRY;
- if (obdfs_pgrq_cachep != NULL) {
- CDEBUG(D_CACHE, "destroying obdfs_pgrqcache at %p, count %ld\n",
- obdfs_pgrq_cachep, obdfs_cache_count);
- if (kmem_cache_destroy(obdfs_pgrq_cachep))
- CERROR("unable to free all of cache\n");
- obdfs_pgrq_cachep = NULL;
- } else
- CERROR("called with NULL pointer\n");
-
- EXIT;
-} /* obdfs_cleanup_wreqcache */
-
-
-/* called with the list lock held */
-static struct page *obdfs_find_page_index(struct inode *inode,
- unsigned long index)
-{
- struct list_head *page_list = obdfs_iplist(inode);
- struct list_head *tmp;
- struct page *page;
-
- ENTRY;
-
- CDEBUG(D_INFO, "looking for inode %ld pageindex %ld\n",
- inode->i_ino, index);
- OIDEBUG(inode);
-
- if (list_empty(page_list)) {
- EXIT;
- return NULL;
- }
- tmp = page_list;
- while ( (tmp = tmp->next) != page_list ) {
- struct obdfs_pgrq *pgrq;
-
- pgrq = list_entry(tmp, struct obdfs_pgrq, rq_plist);
- page = pgrq->rq_page;
- if (index == page->index) {
- CDEBUG(D_INFO,
- "INDEX SEARCH found page %p, index %ld\n",
- page, index);
- EXIT;
- return page;
- }
- }
-
- EXIT;
- return NULL;
-} /* obdfs_find_page_index */
-
-
-/* call and free pages from Linux page cache: called with io lock on inodes */
-int obdfs_do_vec_wr(struct inode **inodes, obd_count num_io,
- obd_count num_obdos, struct obdo **obdos,
- obd_count *oa_bufs, struct page **pages, char **bufs,
- obd_size *counts, obd_off *offsets, obd_flag *flags)
-{
- int err;
-
- ENTRY;
- CDEBUG(D_INFO, "writing %d page(s), %d obdo(s) in vector\n",
- num_io, num_obdos);
- if (obd_debug_level & D_INFO) { /* DEBUGGING */
- int i;
- printk("OBDOS: ");
- for (i = 0; i < num_obdos; i++)
- printk("%ld:0x%p ", (long)obdos[i]->o_id, obdos[i]);
-
- printk("\nPAGES: ");
- for (i = 0; i < num_io; i++)
- printk("0x%p ", pages[i]);
- printk("\n");
- }
-
- err = obd_brw(OBD_BRW_WRITE, IID(inodes[0]), num_obdos, obdos,
- oa_bufs, pages, counts, offsets, flags);
-
- CDEBUG(D_INFO, "BRW done\n");
- /* release the pages from the page cache */
- while ( num_io > 0 ) {
- --num_io;
- CDEBUG(D_INFO, "calling put_page for %p, index %ld\n",
- pages[num_io], pages[num_io]->index);
- /* PDEBUG(pages[num_io], "do_vec_wr"); */
- put_page(pages[num_io]);
- /* PDEBUG(pages[num_io], "do_vec_wr"); */
- }
- CDEBUG(D_INFO, "put_page done\n");
-
- while ( num_obdos > 0) {
- --num_obdos;
- CDEBUG(D_INFO, "free obdo %ld\n",(long)obdos[num_obdos]->o_id);
- /* copy o_blocks to i_blocks */
- obdfs_set_size (inodes[num_obdos], obdos[num_obdos]->o_size);
- //obdfs_to_inode(inodes[num_obdos], obdos[num_obdos]);
- obdo_free(obdos[num_obdos]);
- }
- CDEBUG(D_INFO, "obdo_free done\n");
- EXIT;
- return err;
-}
-
-
-/*
- * Add a page to the write request cache list for later writing.
- * ASYNCHRONOUS write method.
- */
-static int obdfs_add_page_to_cache(struct inode *inode, struct page *page)
-{
- int err = 0;
- ENTRY;
-
- /* The PG_obdcache bit is cleared by obdfs_pgrq_del() BEFORE the page
- * is written, so at worst we will write the page out twice.
- *
- * If the page has the PG_obdcache bit set, then the inode MUST be
- * on the superblock dirty list so we don't need to check this.
- * Dirty inodes are removed from the superblock list ONLY when they
- * don't have any more cached pages. It is possible to have an inode
- * with no dirty pages on the superblock list, but not possible to
- * have an inode with dirty pages NOT on the superblock dirty list.
- */
- if (!OBDAddCachePage(page)) {
- struct obdfs_pgrq *pgrq;
- pgrq = kmem_cache_alloc(obdfs_pgrq_cachep, SLAB_KERNEL);
- if (!pgrq) {
- OBDClearCachePage(page);
- EXIT;
- return -ENOMEM;
- }
- /* not really necessary since we set all pgrq fields here
- memset(pgrq, 0, sizeof(*pgrq));
- */
-
- pgrq->rq_page = page;
- pgrq->rq_jiffies = jiffies;
- get_page(pgrq->rq_page);
-
- obd_down(&obdfs_i2sbi(inode)->osi_list_mutex);
- list_add(&pgrq->rq_plist, obdfs_iplist(inode));
- obdfs_cache_count++;
- //CERROR("-- count %d\n", obdfs_cache_count);
-
- /* If inode isn't already on superblock inodes list, add it.
- *
- * We increment the reference count on the inode to keep it
- * from being freed from memory. This _should_ be an iget()
- * with an iput() in both flush_reqs() and put_inode(), but
- * since put_inode() is called from iput() we can't call iput()
- * again there. Instead we just increment/decrement i_count,
- * which is mostly what iget/iput do for an inode in memory.
- */
- if ( list_empty(obdfs_islist(inode)) ) {
- atomic_inc(&inode->i_count);
- CDEBUG(D_INFO,
- "adding inode %ld to superblock list %p\n",
- inode->i_ino, obdfs_slist(inode));
- list_add(obdfs_islist(inode), obdfs_slist(inode));
- }
- obd_up(&obdfs_i2sbi(inode)->osi_list_mutex);
-
- }
-
- /* XXX For testing purposes, we can write out the page here.
- err = obdfs_flush_reqs(obdfs_slist(inode), ~0UL);
- */
-
- EXIT;
- return err;
-} /* obdfs_add_page_to_cache */
-
-void rebalance(void)
-{
- if (obdfs_cache_count > 60000) {
- CERROR("-- count %ld\n", obdfs_cache_count);
- //obdfs_flush_dirty_pages(~0UL);
- CERROR("-- count %ld\n", obdfs_cache_count);
- }
-}
-
-
-
-/* select between SYNC and ASYNC I/O methods */
-int obdfs_do_writepage(struct page *page, int sync)
-{
- struct inode *inode = page->mapping->host;
- int err;
-
- ENTRY;
- /* PDEBUG(page, "WRITEPAGE"); */
- if ( sync )
- err = obdfs_brw(OBD_BRW_WRITE, inode, page, 1);
- else {
- err = obdfs_add_page_to_cache(inode, page);
- CDEBUG(D_INFO, "DO_WR ino: %ld, page %p, err %d, uptodate %d\n",
- inode->i_ino, page, err, Page_Uptodate(page));
- }
-
- if ( !err ) {
- SetPageUptodate(page);
- set_page_clean(page);
- }
- /* PDEBUG(page,"WRITEPAGE"); */
- EXIT;
- return err;
-} /* obdfs_do_writepage */
-
-
-
-
-#endif
-
-int obdfs_commit_write(struct file *file, struct page *page, unsigned from, unsigned to)
-{
- struct inode *inode = page->mapping->host;
- int rc = 0;
- loff_t len = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to;
- ENTRY;
- CDEBUG(D_INODE, "commit write ino %ld (end at %Ld) from %d to %d ,ind %ld\n",
- inode->i_ino, len, from, to, page->index);
-
-
- if (cache_writes == 0) {
- rc = obdfs_commit_page(page, 1, from, to);
- }
-
- if (len > inode->i_size) {
- obdfs_set_size(inode, len);
- }
-
- kunmap(page);
- EXIT;
- return rc;
-}
-
-
-/*
- * This does the "real" work of the write. The generic routine has
- * allocated the page, locked it, done all the page alignment stuff
- * calculations etc. Now we should just copy the data from user
- * space and write it back to the real medium..
- *
- * If the writer ends up delaying the write, the writer needs to
- * increment the page use counts until he is done with the page.
- *
- * Return value is the number of bytes written.
- */
-int obdfs_write_one_page(struct file *file, struct page *page,
- unsigned long offset, unsigned long bytes,
- const char * buf)
-{
- struct inode *inode = file->f_dentry->d_inode;
- int err;
-
- ENTRY;
- /* We check for complete page writes here, as we then don't have to
- * get the page before writing over everything anyways.
- */
- if ( !Page_Uptodate(page) && (offset != 0 || bytes != PAGE_SIZE) ) {
- err = obdfs_brw(READ, inode, page, 0);
- if ( err )
- return err;
- SetPageUptodate(page);
- }
-
- if (copy_from_user((u8*)page_address(page) + offset, buf, bytes))
- return -EFAULT;
-
- lock_kernel();
- err = obdfs_writepage(page);
- unlock_kernel();
-
- return (err < 0 ? err : bytes);
-} /* obdfs_write_one_page */
-
-/*
- * return an up to date page:
- * - if locked is true then is returned locked
- * - if create is true the corresponding disk blocks are created
- * - page is held, i.e. caller must release the page
- *
- * modeled on NFS code.
- */
-struct page *obdfs_getpage(struct inode *inode, unsigned long offset,
- int create, int locked)
-{
- struct page * page;
- int index;
- int err;
-
- ENTRY;
-
- offset = offset & PAGE_CACHE_MASK;
- CDEBUG(D_INFO, "ino: %ld, offset %ld, create %d, locked %d\n",
- inode->i_ino, offset, create, locked);
- index = offset >> PAGE_CACHE_SHIFT;
-
- page = grab_cache_page(&inode->i_data, index);
-
- /* Yuck, no page */
- if (! page) {
- CERROR("grab_cache_page says no dice ...\n");
- EXIT;
- return NULL;
- }
-
- /* PDEBUG(page, "GETPAGE: got page - before reading\n"); */
- /* now check if the data in the page is up to date */
- if ( Page_Uptodate(page)) {
- if (!locked) {
- if (PageLocked(page))
- obd_unlock_page(page);
- } else {
- CERROR("expecting locked page\n");
- }
- EXIT;
- return page;
- }
-
- err = obdfs_brw(READ, inode, page, create);
-
- if ( err ) {
- SetPageError(page);
- obd_unlock_page(page);
- EXIT;
- return page;
- }
-
- if ( !locked )
- obd_unlock_page(page);
- SetPageUptodate(page);
- /* PDEBUG(page,"GETPAGE - after reading"); */
- EXIT;
- return page;
-} /* obdfs_getpage */
-
-
-void obdfs_truncate(struct inode *inode)
-{
- struct obdo *oa;
- int err;
- ENTRY;
-
- //obdfs_dequeue_pages(inode);
- oa = obdo_alloc();
- if ( !oa ) {
- err = -ENOMEM;
- CERROR("obdo_alloc failed!\n");
- } else {
- oa->o_valid = OBD_MD_FLNOTOBD;
- obdfs_from_inode(oa, inode);
-
- CDEBUG(D_INFO, "calling punch for %ld (%Lu bytes at 0)\n",
- (long)oa->o_id, oa->o_size);
- err = obd_punch(IID(inode), oa, oa->o_size, 0);
-
- obdo_free(oa);
- }
-
- if (err) {
- CERROR("obd_truncate fails (%d)\n", err);
- EXIT;
- return;
- }
- EXIT;
-} /* obdfs_truncate */
-
-struct address_space_operations obdfs_aops = {
- readpage: obdfs_readpage,
- writepage: obdfs_writepage,
- sync_page: block_sync_page,
- prepare_write: obdfs_prepare_write,
- commit_write: obdfs_commit_write,
- bmap: NULL
-};
+++ /dev/null
-
-/*
- * OBDFS Super operations
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * Copryright (C) 1996 Peter J. Braam <braam@stelias.com>
- * Copryright (C) 1999 Stelias Computing Inc. <braam@stelias.com>
- * Copryright (C) 1999 Seagate Technology Inc.
- * Copryright (C) 2001 Mountain View Data, Inc.
- * Copryright (C) 2002 Cluster File Systems, Inc.
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/locks.h>
-#include <linux/unistd.h>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <asm/uaccess.h>
-#include <linux/vmalloc.h>
-#include <asm/segment.h>
-
-#define DEBUG_SUBSYSTEM S_OBDFS
-
-#include <linux/obd_support.h>
-#include <linux/obd_class.h>
-#include <linux/obdfs.h>
-
-struct list_head obdfs_super_list;
-extern struct address_space_operations obdfs_aops;
-struct super_operations obdfs_super_operations;
-long obdfs_cache_count = 0;
-long obdfs_mutex_start = 0;
-long obd_memory = 0;
-
-static char *obdfs_read_opt(const char *opt, char *data)
-{
- char *value;
- char *retval;
-
- CDEBUG(D_INFO, "option: %s, data %s\n", opt, data);
- if ( strncmp(opt, data, strlen(opt)) )
- return NULL;
-
- if ( (value = strchr(data, '=')) == NULL )
- return NULL;
-
- value++;
- OBD_ALLOC(retval, strlen(value) + 1);
- if ( !retval ) {
- CERROR("out of memory!\n");
- return NULL;
- }
-
- memcpy(retval, value, strlen(value)+1);
- CDEBUG(D_SUPER, "Assigned option: %s, value %s\n", opt, retval);
- return retval;
-}
-
-static void obdfs_options(char *options, char **dev, char **vers)
-{
- char *this_char;
-
- if (!options)
- return;
-
- for (this_char = strtok (options, ",");
- this_char != NULL;
- this_char = strtok (NULL, ",")) {
- CDEBUG(D_INFO, "this_char %s\n", this_char);
- if ( (!*dev && (*dev = obdfs_read_opt("device", this_char)))||
- (!*vers && (*vers = obdfs_read_opt("version", this_char))) )
- continue;
-
- }
-}
-
-static struct super_block * obdfs_read_super(struct super_block *sb,
- void *data, int silent)
-{
- struct inode *root = 0;
- struct obdfs_sb_info *sbi = (struct obdfs_sb_info *)(&sb->u.generic_sbp);
- struct obd_device *obddev;
- char *device = NULL;
- char *version = NULL;
- int connected = 0;
- int devno;
- int err;
- unsigned long blocksize;
- unsigned long blocksize_bits;
- unsigned long root_ino;
- int scratch;
- struct obdo *oa;
-
-
- ENTRY;
- MOD_INC_USE_COUNT;
-
- memset(sbi, 0, sizeof(*sbi));
-
- CDEBUG(D_INFO, "\n");
- obdfs_options(data, &device, &version);
- if ( !device ) {
- CERROR("no device\n");
- EXIT;
- goto ERR;
- }
-
- devno = simple_strtoul(device, NULL, 0);
- CDEBUG(D_INFO, "\n");
- if ( devno >= MAX_OBD_DEVICES ) {
- CERROR("device of %s too high (%d)\n", device, devno);
- EXIT;
- goto ERR;
- }
-
- CDEBUG(D_INFO, "\n");
-
- obddev = &obd_dev[devno];
- sbi->osi_obd = obddev;
- sbi->osi_conn.oc_dev = obddev;
-
- err = obd_connect(&sbi->osi_conn);
- if ( err ) {
- CERROR("OBDFS: cannot connect to %s\n", device);
- EXIT;
- goto ERR;
- }
-
- connected = 1;
- CDEBUG(D_INFO, "\n");
- /* list of dirty inodes, and a mutex to hold while modifying it */
- INIT_LIST_HEAD(&sbi->osi_inodes);
- init_MUTEX (&sbi->osi_list_mutex);
-
- CDEBUG(D_INFO, "\n");
- sbi->osi_super = sb;
-
- CDEBUG(D_INFO, "\n");
- err = obd_get_info(&sbi->osi_conn, strlen("blocksize"),
- "blocksize", &scratch,
- (void *)&blocksize);
- if ( err ) {
- CERROR("getinfo call to drive failed (blocksize)\n");
- EXIT;
- goto ERR;
- }
-
- CDEBUG(D_INFO, "\n");
- err = obd_get_info(&sbi->osi_conn, strlen("blocksize_bits"),
- "blocksize_bits", &scratch,
- (void *)&blocksize_bits);
- if ( err ) {
- CERROR("getinfo call to drive failed (blocksize_bits)\n");
- EXIT;
- goto ERR;
- }
-
- CDEBUG(D_INFO, "\n");
- err = obd_get_info(&sbi->osi_conn, strlen("root_ino"),
- "root_ino", &scratch, (void *)&root_ino);
- if ( err ) {
- CERROR("getinfo call to drive failed (root_ino)\n");
- EXIT;
- goto ERR;
- }
-
- CDEBUG(D_INFO, "\n");
- sb->s_maxbytes = 1LL << 36;
- CERROR("Max bytes: %Lx\n", sb->s_maxbytes);
- sb->s_blocksize = PAGE_SIZE;
- sb->s_blocksize_bits = (unsigned char)PAGE_SHIFT;
- sb->s_magic = OBDFS_SUPER_MAGIC;
- sb->s_op = &obdfs_super_operations;
-
- /* XXX how to get "sb->s_flags |= MS_RDONLY" here for snapshots? */
-
- /* make root inode */
- CDEBUG(D_INFO, "\n");
- oa = obdo_fromid(&sbi->osi_conn, root_ino, S_IFDIR,
- OBD_MD_FLNOTOBD | OBD_MD_FLBLOCKS);
- CDEBUG(D_INFO, "mode %o\n", oa->o_mode);
- if ( IS_ERR(oa) ) {
- CERROR("obdo_fromid failed\n");
- iput(root);
- EXIT;
- goto ERR;
- }
- CDEBUG(D_INFO, "\n");
- root = iget4(sb, root_ino, NULL, oa);
- obdo_free(oa);
- CDEBUG(D_INFO, "\n");
- if (!root) {
- CERROR("OBDFS: bad iget4 for root\n");
- sb->s_dev = 0;
- err = -ENOENT;
- EXIT;
- goto ERR;
- }
-
- CDEBUG(D_INFO, "sbdev %d, rootino: %ld, dev %s, "
- "minor: %d, blocksize: %ld, blocksize bits %ld\n",
- sb->s_dev, root->i_ino, device, MINOR(devno),
- blocksize, blocksize_bits);
- sb->s_root = d_alloc_root(root);
- list_add(&sbi->osi_list, &obdfs_super_list);
- OBD_FREE(device, strlen(device) + 1);
- if (version)
- OBD_FREE(version, strlen(version) + 1);
- EXIT;
- return sb;
-
-ERR:
- MOD_DEC_USE_COUNT;
- if (device)
- OBD_FREE(device, strlen(device) + 1);
- if (version)
- OBD_FREE(version, strlen(version) + 1);
- if (connected)
- obd_disconnect(&sbi->osi_conn);
-
- if (sbi) {
- sbi->osi_super = NULL;
- }
- if (root) {
- iput(root);
- }
- sb->s_dev = 0;
- return NULL;
-} /* obdfs_read_super */
-
-
-static void obdfs_put_super(struct super_block *sb)
-{
- struct obdfs_sb_info *sbi;
-
- ENTRY;
- sb->s_dev = 0;
-
- sbi = (struct obdfs_sb_info *) &sb->u.generic_sbp;
- //obdfs_flush_reqs(&sbi->osi_inodes, ~0UL);
-
- obd_disconnect(ID(sb));
- list_del(&sbi->osi_list);
-
- CERROR("OBDFS: Bye bye.\n");
-
- MOD_DEC_USE_COUNT;
- EXIT;
-} /* obdfs_put_super */
-
-
-void obdfs_do_change_inode(struct inode *inode, int valid)
-{
- struct obdo *oa;
- int err;
-
- ENTRY;
- oa = obdo_alloc();
- if ( !oa ) {
- CERROR("obdo_alloc failed\n");
- EXIT;
- return;
- }
-
- oa->o_valid = OBD_MD_FLNOTOBD & (valid | OBD_MD_FLID);
- obdfs_from_inode(oa, inode);
- oa->o_mode = inode->i_mode;
- err = obd_setattr(IID(inode), oa);
-
- if ( err )
- CERROR("obd_setattr fails (%d)\n", err);
-
- EXIT;
- obdo_free(oa);
-} /* obdfs_write_inode */
-
-void obdfs_change_inode(struct inode *inode, int mask)
-{
- return obdfs_do_change_inode(inode, OBD_MD_FLNLINK);
-}
-
-
-extern void write_inode_pages(struct inode *);
-/* This routine is called from iput() (for each unlink on the inode).
- * We can't put this call into delete_inode() since that is called only
- * when i_count == 0, and we need to keep a reference on the inode while
- * it is in the page cache, which means i_count > 0. Catch 22.
- */
-static void obdfs_put_inode(struct inode *inode)
-{
- ENTRY;
- if (inode->i_nlink && (atomic_read(&inode->i_count) == 1)) {
- write_inode_pages(inode);
- EXIT;
- return;
- }
-
- //obdfs_dequeue_pages(inode);
- EXIT;
-} /* obdfs_put_inode */
-
-
-static void obdfs_delete_inode(struct inode *inode)
-{
- obdfs_do_change_inode(inode, ~0);
- clear_inode(inode);
-}
-#if 0
-{
- struct obdo *oa;
- int err;
-
- ENTRY;
- oa = obdo_alloc();
- if ( !oa ) {
- CERROR("obdo_alloc failed\n");
- EXIT;
- return;
- }
- oa->o_valid = OBD_MD_FLNOTOBD;
- obdfs_from_inode(oa, inode);
-
- /* XXX how do we know that this inode is now clean? */
- CERROR("delete_inode ------> link %d\n", inode->i_nlink);
- ODEBUG(oa);
- err = obd_destroy(IID(inode), oa);
- obdo_free(oa);
- clear_inode(inode);
- if (err) {
- CERROR("obd_destroy fails (%d)\n", err);
- EXIT;
- return;
- }
-
- EXIT;
-} /* obdfs_delete_inode */
-#endif
-
-
-static int obdfs_attr2inode(struct inode * inode, struct iattr * attr)
-{
- unsigned int ia_valid = attr->ia_valid;
- int error = 0;
-
- if (ia_valid & ATTR_SIZE) {
- error = vmtruncate(inode, attr->ia_size);
- if (error)
- goto out;
- }
-
- if (ia_valid & ATTR_UID)
- inode->i_uid = attr->ia_uid;
- if (ia_valid & ATTR_GID)
- inode->i_gid = attr->ia_gid;
- if (ia_valid & ATTR_ATIME)
- inode->i_atime = attr->ia_atime;
- if (ia_valid & ATTR_MTIME)
- inode->i_mtime = attr->ia_mtime;
- if (ia_valid & ATTR_CTIME)
- inode->i_ctime = attr->ia_ctime;
- if (ia_valid & ATTR_MODE) {
- inode->i_mode = attr->ia_mode;
- if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
- inode->i_mode &= ~S_ISGID;
- }
-out:
- return error;
-}
-
-int obdfs_setattr(struct dentry *de, struct iattr *attr)
-{
- struct inode *inode = de->d_inode;
- struct obdo *oa;
- int err;
-
- ENTRY;
- oa = obdo_alloc();
- if ( !oa ) {
- CERROR("obdo_alloc failed\n");
- return -ENOMEM;
- }
-
- obdfs_attr2inode(inode, attr);
- oa->o_id = inode->i_ino;
- oa->o_mode = inode->i_mode;
- obdo_from_iattr(oa, attr);
- err = obd_setattr(IID(inode), oa);
-
- if ( err )
- CERROR("obd_setattr fails (%d)\n", err);
-
- EXIT;
- obdo_free(oa);
- return err;
-} /* obdfs_setattr */
-
-
-
-static int obdfs_statfs(struct super_block *sb, struct statfs *buf)
-{
- struct statfs tmp;
- int err;
-
- ENTRY;
-
- err = obd_statfs(ID(sb), &tmp);
- if ( err ) {
- CERROR("obd_statfs fails (%d)\n", err);
- return err;
- }
- memcpy(buf, &tmp, sizeof(*buf));
- CDEBUG(D_SUPER, "statfs returns avail %ld\n", tmp.f_bavail);
- EXIT;
-
- return err;
-}
-
-static inline void obdfs_read_inode2(struct inode *inode, void *opaque)
-{
- struct obdo *oa = opaque;
-
- ENTRY;
- obdfs_to_inode(inode, oa);
-
- INIT_LIST_HEAD(obdfs_iplist(inode)); /* list of dirty pages on inode */
- INIT_LIST_HEAD(obdfs_islist(inode)); /* list of inodes in superblock */
-
- /* OIDEBUG(inode); */
-
- if (S_ISREG(inode->i_mode)) {
- inode->i_op = &obdfs_file_inode_operations;
- inode->i_fop = &obdfs_file_operations;
- inode->i_mapping->a_ops = &obdfs_aops;
- EXIT;
- } else if (S_ISDIR(inode->i_mode)) {
- inode->i_op = &obdfs_dir_inode_operations;
- inode->i_fop = &obdfs_dir_operations;
- inode->i_mapping->a_ops = &obdfs_aops;
- EXIT;
- } else if (S_ISLNK(inode->i_mode)) {
- if (inode->i_blocks) {
- inode->i_op = &obdfs_symlink_inode_operations;
- inode->i_mapping->a_ops = &obdfs_aops;
- }else {
- inode->i_op = &obdfs_fast_symlink_inode_operations;
- }
- EXIT;
- } else {
- init_special_inode(inode, inode->i_mode,
- ((int *)obdfs_i2info(inode)->oi_inline)[0]);
- }
-
- EXIT;
- return;
-}
-
-/* exported operations */
-struct super_operations obdfs_super_operations =
-{
- read_inode2: obdfs_read_inode2,
- put_inode: obdfs_put_inode,
- delete_inode: obdfs_delete_inode,
- put_super: obdfs_put_super,
- statfs: obdfs_statfs
-};
-
-
-struct file_system_type obdfs_fs_type = {
- "obdfs", 0, obdfs_read_super, NULL
-};
-
-int init_obdfs(void)
-{
- //int err;
-
- printk(KERN_INFO "OBDFS v0.1, braam@stelias.com\n");
-
- obdfs_sysctl_init();
-
- INIT_LIST_HEAD(&obdfs_super_list);
- //err = obdfs_init_pgrqcache();
- //if (err)
- //return err;
-
- //obdfs_flushd_init();
- return register_filesystem(&obdfs_fs_type);
-}
-
-
-
-
-#ifdef MODULE
-int init_module(void)
-{
- return init_obdfs();
-}
-
-void cleanup_module(void)
-{
- ENTRY;
-
- //obdfs_flushd_cleanup();
- obdfs_sysctl_clean();
- //obdfs_cleanup_pgrqcache();
- unregister_filesystem(&obdfs_fs_type);
- CDEBUG(D_MALLOC, "OBDFS mem used %ld\n", obd_memory);
- EXIT;
-}
-
-#endif
+++ /dev/null
-/*
- * linux/fs/ext2/symlink.c
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- * from
- *
- * linux/fs/minix/symlink.c
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- *
- * ext2 symlink handling code
- *
- * Modified for OBDFS.
- * Re-written Oct 2001.
- *
- * Copyright (C) 2001 Cluster File Systems, Inc. (author: braam@clusterfs.com)
- */
-
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/stat.h>
-#include <linux/locks.h>
-
-#define DEBUG_SUBSYSTEM S_OBDFS
-
-#include <linux/obd_support.h> /* for ENTRY and EXIT only */
-#include <linux/obdfs.h>
-
-static int obdfs_fast_readlink(struct dentry *dentry, char *buffer, int buflen)
-{
- char *s = obdfs_i2info(dentry->d_inode)->oi_inline;
- return vfs_readlink(dentry, buffer, buflen, s);
-}
-
-static int obdfs_fast_follow_link(struct dentry *dentry, struct nameidata *nd)
-{
- char *s = obdfs_i2info(dentry->d_inode)->oi_inline;
- return vfs_follow_link(nd, s);
-}
-
-extern int obdfs_setattr(struct dentry *de, struct iattr *attr);
-struct inode_operations obdfs_fast_symlink_inode_operations = {
- readlink: obdfs_fast_readlink,
- follow_link: obdfs_fast_follow_link,
- setattr: obdfs_setattr
-};
-
-static int obdfs_readlink(struct dentry *dentry, char *buffer, int buflen)
-{
- struct page *page = NULL;
- int res;
-
- ENTRY;
- OIDEBUG(dentry->d_inode);
- page = obdfs_getpage(dentry->d_inode, 0, 0, 0);
- /* PDEBUG(page, "readlink"); */
- if (!page) {
- EXIT;
- return 0;
- }
- res = vfs_readlink(dentry, buffer, buflen, (char *)page_address(page));
- page_cache_release(page);
- EXIT;
- return res;
-} /* obdfs_readlink */
-
-static int obdfs_follow_link(struct dentry * dentry,
- struct nameidata *nd)
-{
- struct page *page = NULL;
- int res;
-
- ENTRY;
- OIDEBUG(dentry->d_inode);
- page = obdfs_getpage(dentry->d_inode, 0, 0, 0);
- /* PDEBUG(page, "follow_link"); */
- if (!page) {
- dput(nd->dentry);
- EXIT;
- return -EIO;
- }
- res = vfs_follow_link(nd, (char *)page_address(page));
- page_cache_release(page);
- EXIT;
- return res;
-}
-
-struct inode_operations obdfs_symlink_inode_operations = {
- readlink: obdfs_readlink,
- follow_link: obdfs_follow_link,
- setattr: obdfs_setattr
-};
+++ /dev/null
-/*
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- */
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/sysctl.h>
-#include <linux/swapctl.h>
-#include <linux/proc_fs.h>
-#include <linux/slab.h>
-#include <linux/stat.h>
-#include <linux/ctype.h>
-#include <asm/bitops.h>
-#include <asm/segment.h>
-#include <asm/uaccess.h>
-#include <linux/utsname.h>
-
-
-struct ctl_table_header *obdfs_table_header = NULL;
-
-int obdfs_debug_level = 0;
-int obdfs_print_entry = 1;
-
-
-#define OBDFS_SYSCTL 1
-
-#define OBDFS_DEBUG 1 /* control debugging */
-#define OBDFS_ENTRY 2 /* control enter/leave pattern */
-#define OBDFS_TIMEOUT 3 /* timeout on upcalls to become intrble */
-#define OBDFS_HARD 4 /* mount type "hard" or "soft" */
-#define OBDFS_VARS 5
-#define OBDFS_INDEX 6
-#define OBDFS_RESET 7
-
-#define OBDFS_VARS_SLOT 2
-
-static ctl_table obdfs_table[] = {
- {OBDFS_DEBUG, "debug", &obdfs_debug_level, sizeof(int), 0644, NULL, &proc_dointvec},
- {OBDFS_ENTRY, "trace", &obdfs_print_entry, sizeof(int), 0644, NULL, &proc_dointvec},
- { 0 }
-};
-
-static ctl_table top_table[] = {
- {OBDFS_SYSCTL, "obdfs", NULL, 0, 0555, obdfs_table},
- {0}
-};
-
-void obdfs_sysctl_init (void)
-{
-
-#ifdef CONFIG_SYSCTL
- if ( !obdfs_table_header )
- obdfs_table_header = register_sysctl_table(top_table, 0);
-#endif
-}
-
-void obdfs_sysctl_clean (void)
-{
-#ifdef CONFIG_SYSCTL
- if ( obdfs_table_header )
- unregister_sysctl_table(obdfs_table_header);
- obdfs_table_header = NULL;
-#endif
-}
+++ /dev/null
-.Xrefs
-config.log
-config.status
-configure
-Makefile
-Makefile.in
-.deps
-TAGS
+++ /dev/null
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-DEFS:=
-
-MODULE = osc
-modulefs_DATA = osc.o
-EXTRA_PROGRAMS = osc
-
-
-osc_SOURCES = obd_pack.c osc_request.c # super.c rw.c file.c dir.c sysctl.c super.c namei.c symlink.c
-
-obd_pack.c:
- ln -s ../lib/obd_pack.c .
-
-include $(top_srcdir)/Rules
+++ /dev/null
-/*
- * Copryright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- *
- * Author Peter Braam <braam@clusterfs.com>
- *
- * This server is single threaded at present (but can easily be multi
- * threaded). For testing and management it is treated as an
- * obd_device, although it does not export a full OBD method table
- * (the requests are coming in over the wire, so object target
- * modules do not have a full method table.)
- *
- */
-
-#define EXPORT_SYMTAB
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/locks.h>
-#include <linux/unistd.h>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <asm/uaccess.h>
-#include <asm/segment.h>
-#include <linux/miscdevice.h>
-
-#define DEBUG_SUBSYSTEM S_OSC
-
-#include <linux/obd_support.h>
-#include <linux/obd_class.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
-
-extern int ost_queue_req(struct obd_device *, struct ptlrpc_request *);
-
-/* FIXME: this belongs in some sort of service struct */
-static int osc_xid = 1;
-
-struct ptlrpc_request *ost_prep_req(int opcode, int buflen1, char *buf1,
- int buflen2, char *buf2)
-{
- struct ptlrpc_request *request;
- int rc;
- ENTRY;
-
- OBD_ALLOC(request, sizeof(*request));
- if (!request) {
- CERROR("request allocation out of memory\n");
- return NULL;
- }
-
- memset(request, 0, sizeof(*request));
- request->rq_xid = osc_xid++;
-
- rc = ost_pack_req(buf1, buflen1, buf2, buflen2,
- &request->rq_reqhdr, &request->rq_req.ost,
- &request->rq_reqlen, &request->rq_reqbuf);
- if (rc) {
- CERROR("llight request: cannot pack request %d\n", rc);
- return NULL;
- }
- request->rq_reqhdr->opc = opcode;
-
- EXIT;
- return request;
-}
-
-/* XXX: unify with mdc_queue_wait */
-extern int osc_queue_wait(struct obd_conn *conn, struct ptlrpc_request *req)
-{
- struct obd_device *client = conn->oc_dev;
- struct lustre_peer *peer = &conn->oc_dev->u.osc.osc_peer;
- int rc;
- DECLARE_WAITQUEUE(wait, current);
-
- ENTRY;
-
- /* set the connection id */
- req->rq_req.ost->connid = conn->oc_id;
- init_waitqueue_head(&req->rq_wait_for_rep);
-
- /* XXX fix the race here (wait_for_event?)*/
- if (peer == NULL) {
- /* Local delivery */
- CDEBUG(D_INODE, "\n");
- rc = ost_queue_req(client, req);
- } else {
- /* Remote delivery via portals. */
- req->rq_req_portal = OST_REQUEST_PORTAL;
- req->rq_reply_portal = OST_REPLY_PORTAL;
- rc = ptl_send_rpc(req, peer);
- }
- if (rc) {
- CERROR("error %d, opcode %d\n", rc, req->rq_reqhdr->opc);
- return -rc;
- }
-
- CDEBUG(D_INODE, "tgt at %p, conn id %d, opcode %d request at: %p\n",
- &conn->oc_dev->u.osc.osc_tgt->u.ost,
- conn->oc_id, req->rq_reqhdr->opc, req);
-
- /* wait for the reply */
- CDEBUG(D_INODE, "-- sleeping\n");
- add_wait_queue(&req->rq_wait_for_rep, &wait);
- while (req->rq_repbuf == NULL) {
- set_current_state(TASK_INTERRUPTIBLE);
-
- /* if this process really wants to die, let it go */
- if (sigismember(&(current->pending.signal), SIGKILL) ||
- sigismember(&(current->pending.signal), SIGINT))
- break;
-
- schedule();
- }
- remove_wait_queue(&req->rq_wait_for_rep, &wait);
- set_current_state(TASK_RUNNING);
- CDEBUG(D_INODE, "-- done\n");
-
- if (req->rq_repbuf == NULL) {
- /* We broke out because of a signal */
- EXIT;
- return -EINTR;
- }
-
- rc = ost_unpack_rep(req->rq_repbuf, req->rq_replen, &req->rq_rephdr,
- &req->rq_rep.ost);
- if (rc) {
- CERROR("mds_unpack_rep failed: %d\n", rc);
- return rc;
- }
-
- if ( req->rq_rephdr->status == 0 )
- CDEBUG(D_INODE, "buf %p len %d status %d\n",
- req->rq_repbuf, req->rq_replen,
- req->rq_rephdr->status);
-
- EXIT;
- return 0;
-}
-
-static void osc_free_req(struct ptlrpc_request *request)
-{
- OBD_FREE(request, sizeof(*request));
-}
-
-static int osc_connect(struct obd_conn *conn)
-{
- struct ptlrpc_request *request;
- int rc;
- ENTRY;
-
- request = ost_prep_req(OST_CONNECT, 0, NULL, 0, NULL);
- if (!request) {
- CERROR("cannot pack req!\n");
- return -ENOMEM;
- }
-
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct ost_rep);
-
- rc = osc_queue_wait(conn, request);
- if (rc) {
- EXIT;
- goto out;
- }
-
- CDEBUG(D_INODE, "received connid %d\n", request->rq_rep.ost->connid);
-
- conn->oc_id = request->rq_rep.ost->connid;
- out:
- osc_free_req(request);
- EXIT;
- return rc;
-}
-
-static int osc_disconnect(struct obd_conn *conn)
-{
- struct ptlrpc_request *request;
- int rc;
- ENTRY;
-
- request = ost_prep_req(OST_DISCONNECT, 0, NULL, 0, NULL);
- if (!request) {
- CERROR("cannot pack req!\n");
- return -ENOMEM;
- }
-
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct ost_rep);
-
- rc = osc_queue_wait(conn, request);
- if (rc) {
- EXIT;
- goto out;
- }
- out:
- osc_free_req(request);
- EXIT;
- return rc;
-}
-
-
-static int osc_getattr(struct obd_conn *conn, struct obdo *oa)
-{
- struct ptlrpc_request *request;
- int rc;
-
- request = ost_prep_req(OST_GETATTR, 0, NULL, 0, NULL);
- if (!request) {
- CERROR("cannot pack req!\n");
- return -ENOMEM;
- }
-
- memcpy(&request->rq_req.ost->oa, oa, sizeof(*oa));
- request->rq_req.ost->oa.o_valid = ~0;
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct ost_rep);
-
- rc = osc_queue_wait(conn, request);
- if (rc) {
- EXIT;
- goto out;
- }
-
- CDEBUG(D_INODE, "mode: %o\n", request->rq_rep.ost->oa.o_mode);
- if (oa) {
- memcpy(oa, &request->rq_rep.ost->oa, sizeof(*oa));
- }
-
- out:
- osc_free_req(request);
- return 0;
-}
-
-static int osc_setattr(struct obd_conn *conn, struct obdo *oa)
-{
- struct ptlrpc_request *request;
- int rc;
-
- request = ost_prep_req(OST_SETATTR, 0, NULL, 0, NULL);
- if (!request) {
- CERROR("cannot pack req!\n");
- return -ENOMEM;
- }
-
- memcpy(&request->rq_req.ost->oa, oa, sizeof(*oa));
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct ost_rep);
-
- rc = osc_queue_wait(conn, request);
- if (rc) {
- EXIT;
- goto out;
- }
-
- out:
- osc_free_req(request);
- return 0;
-}
-
-static int osc_create(struct obd_conn *conn, struct obdo *oa)
-{
- struct ptlrpc_request *request;
- int rc;
-
- if (!oa) {
- CERROR("oa NULL\n");
- }
- request = ost_prep_req(OST_CREATE, 0, NULL, 0, NULL);
- if (!request) {
- CERROR("cannot pack req!\n");
- return -ENOMEM;
- }
-
- memcpy(&request->rq_req.ost->oa, oa, sizeof(*oa));
- request->rq_req.ost->oa.o_valid = ~0;
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct ost_rep);
-
- rc = osc_queue_wait(conn, request);
- if (rc) {
- EXIT;
- goto out;
- }
- memcpy(oa, &request->rq_rep.ost->oa, sizeof(*oa));
-
- out:
- osc_free_req(request);
- return 0;
-}
-
-static int osc_punch(struct obd_conn *conn, struct obdo *oa, obd_size count, obd_off offset)
-{
- struct ptlrpc_request *request;
- int rc;
-
- if (!oa) {
- CERROR("oa NULL\n");
- }
- request = ost_prep_req(OST_PUNCH, 0, NULL, 0, NULL);
- if (!request) {
- CERROR("cannot pack req!\n");
- return -ENOMEM;
- }
-
- memcpy(&request->rq_req.ost->oa, oa, sizeof(*oa));
- request->rq_req.ost->oa.o_valid = ~0;
- request->rq_req.ost->oa.o_size = offset;
- request->rq_req.ost->oa.o_blocks = count;
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct ost_rep);
-
- rc = osc_queue_wait(conn, request);
- if (rc) {
- EXIT;
- goto out;
- }
- memcpy(oa, &request->rq_rep.ost->oa, sizeof(*oa));
-
- out:
- osc_free_req(request);
- return 0;
-}
-
-static int osc_destroy(struct obd_conn *conn, struct obdo *oa)
-{
- struct ptlrpc_request *request;
- int rc;
-
- if (!oa) {
- CERROR("oa NULL\n");
- }
- request = ost_prep_req(OST_DESTROY, 0, NULL, 0, NULL);
- if (!request) {
- CERROR("cannot pack req!\n");
- return -ENOMEM;
- }
-
- memcpy(&request->rq_req.ost->oa, oa, sizeof(*oa));
- request->rq_req.ost->oa.o_valid = ~0;
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct ost_rep);
-
- rc = osc_queue_wait(conn, request);
- if (rc) {
- EXIT;
- goto out;
- }
- memcpy(oa, &request->rq_rep.ost->oa, sizeof(*oa));
-
- out:
- osc_free_req(request);
- return 0;
-}
-
-
-/* mount the file system (secretly) */
-static int osc_setup(struct obd_device *obddev, obd_count len,
- void *buf)
-
-{
- struct obd_ioctl_data* data = buf;
- struct osc_obd *osc = &obddev->u.osc;
- ENTRY;
-
- if (data->ioc_dev >= 0 && data->ioc_dev < MAX_OBD_DEVICES) {
- /* This is a local connection */
- osc->osc_tgt = &obd_dev[data->ioc_dev];
-
- CERROR("OSC: tgt %d ost at %p\n", data->ioc_dev,
- &osc->osc_tgt->u.ost);
- if ( ! (osc->osc_tgt->obd_flags & OBD_ATTACHED) ||
- ! (osc->osc_tgt->obd_flags & OBD_SET_UP) ){
- CERROR("device not attached or not set up (%d)\n",
- data->ioc_dev);
- EXIT;
- return -EINVAL;
- }
- } else {
- int err;
- /* This is a remote connection using Portals */
-
- /* XXX: this should become something like ioc_inlbuf1 */
- err = kportal_uuid_to_peer("ost", &osc->osc_peer);
- if (err != 0) {
- CERROR("Cannot find 'ost' peer.\n");
- EXIT;
- return -EINVAL;
- }
- }
-
- MOD_INC_USE_COUNT;
- EXIT;
- return 0;
-}
-
-int osc_sendpage(struct ptlrpc_request *req, struct niobuf *dst,
- struct niobuf *src)
-{
- if (req->rq_peer.peer_nid == 0) {
- /* local sendpage */
- memcpy((char *)(unsigned long)dst->addr,
- (char *)(unsigned long)src->addr, src->len);
- } else {
- char *buf;
- int rc;
-
- OBD_ALLOC(buf, src->len);
- if (!buf)
- return -ENOMEM;
-
- memcpy(buf, (char *)(unsigned long)src->addr, src->len);
-
- req->rq_type = PTLRPC_BULK;
- req->rq_bulkbuf = buf;
- req->rq_bulklen = src->len;
- rc = ptl_send_buf(req, &req->rq_peer, OST_BULK_PORTAL);
- init_waitqueue_head(&req->rq_wait_for_bulk);
- sleep_on(&req->rq_wait_for_bulk);
- OBD_FREE(buf, src->len);
- req->rq_bulklen = 0; /* FIXME: eek. */
- }
-
- return 0;
-}
-
-
-int osc_brw(int rw, struct obd_conn *conn, obd_count num_oa,
- struct obdo **oa, obd_count *oa_bufs, struct page **buf,
- obd_size *count, obd_off *offset, obd_flag *flags)
-{
- struct ptlrpc_request *request;
- int rc;
- struct obd_ioobj ioo;
- struct niobuf src;
- int size1, size2 = 0;
- void *ptr1, *ptr2;
- int i, j, n;
-
- size1 = num_oa * sizeof(ioo);
- for (i = 0; i < num_oa; i++) {
- size2 += oa_bufs[i] * sizeof(src);
- }
-
- request = ost_prep_req(OST_BRW, size1, NULL, size2, NULL);
- if (!request) {
- CERROR("cannot pack req!\n");
- return -ENOMEM;
- }
-
- n = 0;
- request->rq_req.ost->cmd = rw;
- ptr1 = ost_req_buf1(request->rq_req.ost);
- ptr2 = ost_req_buf2(request->rq_req.ost);
- for (i = 0; i < num_oa; i++) {
- ost_pack_ioo(&ptr1, oa[i], oa_bufs[i]);
- for (j = 0; j < oa_bufs[i]; j++) {
- ost_pack_niobuf(&ptr2, kmap(buf[n]), offset[n],
- count[n], flags[n]);
- n++;
- }
- }
-
- request->rq_bulk_portal = OST_BULK_PORTAL;
- request->rq_replen =
- sizeof(struct ptlrep_hdr) + sizeof(struct ost_rep) + size2;
-
- rc = osc_queue_wait(conn, request);
- if (rc) {
- EXIT;
- goto out;
- }
-
-#if 0
- ptr2 = ost_rep_buf2(request->rq_rep.ost);
- if (request->rq_rep.ost->buflen2 != n * sizeof(struct niobuf)) {
- CERROR("buffer length wrong\n");
- goto out;
- }
-
- if (rw == OBD_BRW_READ)
- goto out;
-
- for (i = 0; i < num_oa; i++) {
- for (j = 0; j < oa_bufs[i]; j++) {
- struct niobuf *dst;
- src.addr = (__u64)(unsigned long)buf[n];
- src.len = count[n];
- ost_unpack_niobuf(&ptr2, &dst);
- osc_sendpage(request, dst, &src);
- n++;
- }
- }
-#endif
-
- out:
- if (request->rq_rephdr)
- OBD_FREE(request->rq_rephdr, request->rq_replen);
- n = 0;
- for (i = 0; i < num_oa; i++) {
- for (j = 0; j < oa_bufs[i]; j++) {
- kunmap(buf[n]);
- n++;
- }
- }
-
- osc_free_req(request);
- return 0;
-}
-
-static int osc_cleanup(struct obd_device * obddev)
-{
- MOD_DEC_USE_COUNT;
- return 0;
-}
-
-struct obd_ops osc_obd_ops = {
- o_setup: osc_setup,
- o_cleanup: osc_cleanup,
- o_create: osc_create,
- o_destroy: osc_destroy,
- o_getattr: osc_getattr,
- o_setattr: osc_setattr,
- o_connect: osc_connect,
- o_disconnect: osc_disconnect,
- o_brw: osc_brw,
- o_punch: osc_punch
-};
-
-static int __init osc_init(void)
-{
- obd_register_type(&osc_obd_ops, LUSTRE_OSC_NAME);
- return 0;
-}
-
-static void __exit osc_exit(void)
-{
- obd_unregister_type(LUSTRE_OSC_NAME);
-}
-
-MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
-MODULE_DESCRIPTION("Lustre Object Storage Client (OSC) v1.0");
-MODULE_LICENSE("GPL");
-
-module_init(osc_init);
-module_exit(osc_exit);
-
+++ /dev/null
-.Xrefs
-config.log
-config.status
-configure
-Makefile
-Makefile.in
-.deps
-TAGS
+++ /dev/null
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-DEFS:=
-MODULE = ost
-modulefs_DATA = ost.o
-EXTRA_PROGRAMS = ost
-
-obd_pack.c:
- ln -s ../lib/obd_pack.c .
-page.c:
- ln -s ../lib/page.c
-
-ost_SOURCES = page.c obd_pack.c ost_handler.c
-
-include $(top_srcdir)/Rules
-
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
- * Author: Peter J. Braam <braam@clusterfs.com>
- * Author: Phil Schwan <phil@clusterfs.com>
- *
- * This file is part of Lustre, http://www.lustre.org.
- *
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Storage Target Handling functions
- * Lustre Object Server Module (OST)
- *
- * This server is single threaded at present (but can easily be multi
- * threaded). For testing and management it is treated as an
- * obd_device, although it does not export a full OBD method table
- * (the requests are coming in over the wire, so object target
- * modules do not have a full method table.)
- */
-
-#define EXPORT_SYMTAB
-
-#include <linux/version.h>
-#include <linux/module.h>
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <linux/locks.h>
-#include <linux/ext2_fs.h>
-#include <linux/quotaops.h>
-#include <asm/unistd.h>
-
-#define DEBUG_SUBSYSTEM S_OST
-
-#include <linux/obd_support.h>
-#include <linux/obd.h>
-#include <linux/obd_class.h>
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
-#include <linux/lustre_mds.h>
-#include <linux/obd_class.h>
-
-// for testing
-static int ost_queue_req(struct obd_device *obddev, struct ptlrpc_request *req)
-{
- struct ptlrpc_request *srv_req;
- struct ost_obd *ost = &obddev->u.ost;
-
- if (!ost) {
- EXIT;
- return -1;
- }
-
- OBD_ALLOC(srv_req, sizeof(*srv_req));
- if (!srv_req) {
- EXIT;
- return -ENOMEM;
- }
-
- CDEBUG(0, "---> OST at %d %p, incoming req %p, srv_req %p\n",
- __LINE__, ost, req, srv_req);
-
- memset(srv_req, 0, sizeof(*req));
-
- /* move the request buffer */
- srv_req->rq_reqbuf = req->rq_reqbuf;
- srv_req->rq_reqlen = req->rq_reqlen;
- srv_req->rq_ost = ost;
-
- /* remember where it came from */
- srv_req->rq_reply_handle = req;
-
- spin_lock(&ost->ost_lock);
- list_add(&srv_req->rq_list, &ost->ost_reqs);
- spin_unlock(&ost->ost_lock);
- wake_up(&ost->ost_waitq);
- return 0;
-}
-
-int ost_reply(struct obd_device *obddev, struct ptlrpc_request *req)
-{
- struct ptlrpc_request *clnt_req = req->rq_reply_handle;
-
- ENTRY;
-
- if (req->rq_ost->ost_service != NULL) {
- /* This is a request that came from the network via portals. */
-
- /* FIXME: we need to increment the count of handled events */
- req->rq_type = PTLRPC_REPLY;
- ptl_send_buf(req, &req->rq_peer, OST_REPLY_PORTAL);
- } else {
- /* This is a local request that came from another thread. */
-
- /* move the reply to the client */
- clnt_req->rq_replen = req->rq_replen;
- clnt_req->rq_repbuf = req->rq_repbuf;
- req->rq_repbuf = NULL;
- req->rq_replen = 0;
-
- /* free the request buffer */
- OBD_FREE(req->rq_reqbuf, req->rq_reqlen);
- req->rq_reqbuf = NULL;
-
- /* wake up the client */
- wake_up_interruptible(&clnt_req->rq_wait_for_rep);
- }
-
- EXIT;
- return 0;
-}
-
-int ost_error(struct obd_device *obddev, struct ptlrpc_request *req)
-{
- struct ptlrep_hdr *hdr;
-
- ENTRY;
-
- OBD_ALLOC(hdr, sizeof(*hdr));
- if (!hdr) {
- EXIT;
- return -ENOMEM;
- }
-
- memset(hdr, 0, sizeof(*hdr));
-
- hdr->seqno = req->rq_reqhdr->seqno;
- hdr->status = req->rq_status;
- hdr->type = OST_TYPE_ERR;
-
- req->rq_repbuf = (char *)hdr;
- req->rq_replen = sizeof(*hdr);
-
- EXIT;
- return ost_reply(obddev, req);
-}
-
-static int ost_destroy(struct ost_obd *ost, struct ptlrpc_request *req)
-{
- struct obd_conn conn;
- int rc;
-
- ENTRY;
-
- conn.oc_id = req->rq_req.ost->connid;
- conn.oc_dev = ost->ost_tgt;
-
- rc = ost_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep.ost,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- CERROR("cannot pack reply\n");
- return rc;
- }
-
- req->rq_rep.ost->result =ost->ost_tgt->obd_type->typ_ops->o_destroy
- (&conn, &req->rq_req.ost->oa);
-
- EXIT;
- return 0;
-}
-
-static int ost_getattr(struct ost_obd *ost, struct ptlrpc_request *req)
-{
- struct obd_conn conn;
- int rc;
-
- ENTRY;
-
- conn.oc_id = req->rq_req.ost->connid;
- conn.oc_dev = ost->ost_tgt;
-
- rc = ost_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep.ost,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- CERROR("cannot pack reply\n");
- return rc;
- }
- req->rq_rep.ost->oa.o_id = req->rq_req.ost->oa.o_id;
- req->rq_rep.ost->oa.o_valid = req->rq_req.ost->oa.o_valid;
-
- req->rq_rep.ost->result =ost->ost_tgt->obd_type->typ_ops->o_getattr
- (&conn, &req->rq_rep.ost->oa);
-
- EXIT;
- return 0;
-}
-
-static int ost_create(struct ost_obd *ost, struct ptlrpc_request *req)
-{
- struct obd_conn conn;
- int rc;
-
- ENTRY;
-
- conn.oc_id = req->rq_req.ost->connid;
- conn.oc_dev = ost->ost_tgt;
-
- rc = ost_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep.ost,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- CERROR("cannot pack reply\n");
- return rc;
- }
-
- memcpy(&req->rq_rep.ost->oa, &req->rq_req.ost->oa, sizeof(req->rq_req.ost->oa));
-
- req->rq_rep.ost->result =ost->ost_tgt->obd_type->typ_ops->o_create
- (&conn, &req->rq_rep.ost->oa);
-
- EXIT;
- return 0;
-}
-
-static int ost_punch(struct ost_obd *ost, struct ptlrpc_request *req)
-{
- struct obd_conn conn;
- int rc;
-
- ENTRY;
-
- conn.oc_id = req->rq_req.ost->connid;
- conn.oc_dev = ost->ost_tgt;
-
- rc = ost_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep.ost,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- CERROR("cannot pack reply\n");
- return rc;
- }
-
- memcpy(&req->rq_rep.ost->oa, &req->rq_req.ost->oa, sizeof(req->rq_req.ost->oa));
-
- req->rq_rep.ost->result =ost->ost_tgt->obd_type->typ_ops->o_punch
- (&conn, &req->rq_rep.ost->oa,
- req->rq_rep.ost->oa.o_size,
- req->rq_rep.ost->oa.o_blocks);
-
- EXIT;
- return 0;
-}
-
-
-static int ost_setattr(struct ost_obd *ost, struct ptlrpc_request *req)
-{
- struct obd_conn conn;
- int rc;
-
- ENTRY;
-
- conn.oc_id = req->rq_req.ost->connid;
- conn.oc_dev = ost->ost_tgt;
-
- rc = ost_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep.ost,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- CERROR("cannot pack reply\n");
- return rc;
- }
-
- memcpy(&req->rq_rep.ost->oa, &req->rq_req.ost->oa,
- sizeof(req->rq_req.ost->oa));
-
- req->rq_rep.ost->result =ost->ost_tgt->obd_type->typ_ops->o_setattr
- (&conn, &req->rq_rep.ost->oa);
-
- EXIT;
- return 0;
-}
-
-static int ost_connect(struct ost_obd *ost, struct ptlrpc_request *req)
-{
- struct obd_conn conn;
- int rc;
-
- ENTRY;
-
- conn.oc_dev = ost->ost_tgt;
-
- rc = ost_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep.ost,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- CERROR("cannot pack reply\n");
- return rc;
- }
-
- req->rq_rep.ost->result =ost->ost_tgt->obd_type->typ_ops->o_connect(&conn);
-
- CDEBUG(0, "rep buffer %p, id %d\n", req->rq_repbuf,
- conn.oc_id);
- req->rq_rep.ost->connid = conn.oc_id;
- EXIT;
- return 0;
-}
-
-static int ost_disconnect(struct ost_obd *ost, struct ptlrpc_request *req)
-{
- struct obd_conn conn;
- int rc;
-
- ENTRY;
-
- conn.oc_dev = ost->ost_tgt;
- conn.oc_id = req->rq_req.ost->connid;
-
- rc = ost_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep.ost,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- CERROR("cannot pack reply\n");
- return rc;
- }
-
- req->rq_rep.ost->result =ost->ost_tgt->obd_type->typ_ops->o_disconnect(&conn);
-
- EXIT;
- return 0;
-}
-
-static int ost_get_info(struct ost_obd *ost, struct ptlrpc_request *req)
-{
- struct obd_conn conn;
- int rc;
- int vallen;
- void *val;
- char *ptr;
-
- ENTRY;
-
- conn.oc_id = req->rq_req.ost->connid;
- conn.oc_dev = ost->ost_tgt;
-
- ptr = ost_req_buf1(req->rq_req.ost);
- req->rq_rep.ost->result =ost->ost_tgt->obd_type->typ_ops->o_get_info
- (&conn, req->rq_req.ost->buflen1, ptr, &vallen, &val);
-
- rc = ost_pack_rep(val, vallen, NULL, 0, &req->rq_rephdr,
- &req->rq_rep.ost, &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- CERROR("cannot pack reply\n");
- return rc;
- }
-
- EXIT;
- return 0;
-}
-
-int ost_brw(struct ost_obd *obddev, struct ptlrpc_request *req)
-{
- struct obd_conn conn;
- int rc;
- int i, j;
- int objcount, niocount;
- char *tmp1, *tmp2, *end2;
- char *res;
- int cmd;
- struct niobuf *nb, *src, *dst;
- struct obd_ioobj *ioo;
- struct ost_req *r = req->rq_req.ost;
-
- ENTRY;
-
- tmp1 = ost_req_buf1(r);
- tmp2 = ost_req_buf2(r);
- end2 = tmp2 + req->rq_req.ost->buflen2;
- objcount = r->buflen1 / sizeof(*ioo);
- niocount = r->buflen2 / sizeof(*nb);
- cmd = r->cmd;
-
- conn.oc_id = req->rq_req.ost->connid;
- conn.oc_dev = req->rq_ost->ost_tgt;
-
- rc = ost_pack_rep(NULL, niocount, NULL, 0,
- &req->rq_rephdr, &req->rq_rep.ost,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- CERROR("cannot pack reply\n");
- return rc;
- }
- res = ost_rep_buf1(req->rq_rep.ost);
-
- for (i=0; i < objcount; i++) {
- ost_unpack_ioo((void *)&tmp1, &ioo);
- if (tmp2 + ioo->ioo_bufcnt > end2) {
- rc = -EFAULT;
- break;
- }
- for (j = 0 ; j < ioo->ioo_bufcnt ; j++) {
- ost_unpack_niobuf((void *)&tmp2, &nb);
- }
- }
-
- /* The unpackers move tmp1 and tmp2, so reset them before using */
- tmp1 = ost_req_buf1(r);
- tmp2 = ost_req_buf2(r);
- req->rq_rep.ost->result =
- req->rq_ost->ost_tgt->obd_type->typ_ops->o_preprw
- (cmd, &conn, objcount, (struct obd_ioobj *)tmp1,
- niocount, (struct niobuf *)tmp2, (struct niobuf *)res);
-
- if (req->rq_rep.ost->result) {
- EXIT;
- goto out;
- }
-
- if (cmd == OBD_BRW_WRITE) {
- for (i = 0; i < niocount; i++) {
- src = &((struct niobuf *)tmp2)[i];
- dst = &((struct niobuf *)res)[i];
- memcpy((void *)(unsigned long)dst->addr,
- (void *)(unsigned long)src->addr,
- src->len);
- }
- barrier();
- } else {
- for (i = 0; i < niocount; i++) {
- dst = &((struct niobuf *)tmp2)[i];
- src = &((struct niobuf *)res)[i];
- memcpy((void *)(unsigned long)dst->addr,
- (void *)(unsigned long)src->addr,
- PAGE_SIZE);
- }
- barrier();
- }
-
- req->rq_rep.ost->result =
- req->rq_ost->ost_tgt->obd_type->typ_ops->o_commitrw
- (cmd, &conn, objcount, (struct obd_ioobj *)tmp1,
- niocount, (struct niobuf *)res);
-
- out:
- EXIT;
- return 0;
-}
-
-int ost_handle(struct obd_device *obddev, struct ptlrpc_request *req)
-{
- int rc;
- struct ost_obd *ost = &obddev->u.ost;
- struct ptlreq_hdr *hdr;
-
- ENTRY;
- CDEBUG(0, "req at %p\n", req);
-
- hdr = (struct ptlreq_hdr *)req->rq_reqbuf;
- if (NTOH__u32(hdr->type) != OST_TYPE_REQ) {
- CERROR("lustre_ost: wrong packet type sent %d\n",
- NTOH__u32(hdr->type));
- rc = -EINVAL;
- goto out;
- }
-
- rc = ost_unpack_req(req->rq_reqbuf, req->rq_reqlen,
- &req->rq_reqhdr, &req->rq_req.ost);
- if (rc) {
- CERROR("lustre_ost: Invalid request\n");
- EXIT;
- goto out;
- }
-
- switch (req->rq_reqhdr->opc) {
-
- case OST_CONNECT:
- CDEBUG(D_INODE, "connect\n");
- rc = ost_connect(ost, req);
- break;
- case OST_DISCONNECT:
- CDEBUG(D_INODE, "disconnect\n");
- rc = ost_disconnect(ost, req);
- break;
- case OST_GET_INFO:
- CDEBUG(D_INODE, "get_info\n");
- rc = ost_get_info(ost, req);
- break;
- case OST_CREATE:
- CDEBUG(D_INODE, "create\n");
- rc = ost_create(ost, req);
- break;
- case OST_DESTROY:
- CDEBUG(D_INODE, "destroy\n");
- rc = ost_destroy(ost, req);
- break;
- case OST_GETATTR:
- CDEBUG(D_INODE, "getattr\n");
- rc = ost_getattr(ost, req);
- break;
- case OST_SETATTR:
- CDEBUG(D_INODE, "setattr\n");
- rc = ost_setattr(ost, req);
- break;
- case OST_BRW:
- CDEBUG(D_INODE, "brw\n");
- rc = ost_brw(ost, req);
- break;
- case OST_PUNCH:
- CDEBUG(D_INODE, "punch\n");
- rc = ost_punch(ost, req);
- break;
- default:
- req->rq_status = -ENOTSUPP;
- return ost_error(obddev, req);
- }
-
-out:
- req->rq_status = rc;
- if (rc) {
- CERROR("ost: processing error %d\n", rc);
- ost_error(obddev, req);
- } else {
- CDEBUG(D_INODE, "sending reply\n");
- ost_reply(obddev, req);
- }
-
- return 0;
-}
-
-/* FIXME: Serious refactoring needed */
-int ost_main(void *arg)
-{
- int signal;
- struct obd_device *obddev = (struct obd_device *) arg;
- struct ost_obd *ost = &obddev->u.ost;
- DECLARE_WAITQUEUE(wait, current);
-
- ENTRY;
-
- lock_kernel();
- daemonize();
- spin_lock_irq(¤t->sigmask_lock);
- sigfillset(¤t->blocked);
- recalc_sigpending(current);
- spin_unlock_irq(¤t->sigmask_lock);
-
- sprintf(current->comm, "lustre_ost");
-
- /* Record that the thread is running */
- ost->ost_thread = current;
- wake_up(&ost->ost_done_waitq);
-
- /* XXX maintain a list of all managed devices: insert here */
-
- /* And now, wait forever for commit wakeup events. */
- while (1) {
- int rc;
-
- if (ost->ost_service != NULL) {
- ptl_event_t ev;
- struct ptlrpc_request request;
- struct ptlrpc_service *service;
-
- CDEBUG(D_IOCTL, "-- sleeping\n");
- signal = 0;
- add_wait_queue(&ost->ost_waitq, &wait);
- while (1) {
- set_current_state(TASK_INTERRUPTIBLE);
- rc = PtlEQGet(ost->ost_service->srv_eq_h, &ev);
- if (rc == PTL_OK || rc == PTL_EQ_DROPPED)
- break;
- if (ost->ost_flags & OST_EXIT)
- break;
-
-
- /* if this process really wants to die,
- * let it go */
- if (sigismember(&(current->pending.signal),
- SIGKILL) ||
- sigismember(&(current->pending.signal),
- SIGINT)) {
- signal = 1;
- break;
- }
-
- schedule();
- }
- remove_wait_queue(&ost->ost_waitq, &wait);
- set_current_state(TASK_RUNNING);
- CDEBUG(D_IOCTL, "-- done\n");
-
- if (signal == 1) {
- /* We broke out because of a signal */
- EXIT;
- break;
- }
- if (ost->ost_flags & OST_EXIT) {
- EXIT;
- break;
- }
-
- service = (struct ptlrpc_service *)ev.mem_desc.user_ptr;
-
- /* FIXME: If we move to an event-driven model,
- * we should put the request on the stack of
- * mds_handle instead. */
- memset(&request, 0, sizeof(request));
- request.rq_reqbuf = ev.mem_desc.start + ev.offset;
- request.rq_reqlen = ev.mem_desc.length;
- request.rq_ost = ost;
- request.rq_xid = ev.match_bits;
-
- request.rq_peer.peer_nid = ev.initiator.nid;
- /* FIXME: this NI should be the incoming NI.
- * We don't know how to find that from here. */
- request.rq_peer.peer_ni =
- ost->ost_service->srv_self.peer_ni;
- rc = ost_handle(obddev, &request);
-
- /* Inform the rpc layer the event has been handled */
- ptl_received_rpc(service);
- } else {
- struct ptlrpc_request *request;
-
- CDEBUG(D_IOCTL, "-- sleeping\n");
- add_wait_queue(&ost->ost_waitq, &wait);
- while (1) {
- spin_lock(&ost->ost_lock);
- if (!list_empty(&ost->ost_reqs))
- break;
-
- set_current_state(TASK_INTERRUPTIBLE);
-
- /* if this process really wants to die,
- * let it go */
- if (sigismember(&(current->pending.signal),
- SIGKILL) ||
- sigismember(&(current->pending.signal),
- SIGINT))
- break;
-
- spin_unlock(&ost->ost_lock);
-
- schedule();
- }
- remove_wait_queue(&ost->ost_waitq, &wait);
- set_current_state(TASK_RUNNING);
- CDEBUG(D_IOCTL, "-- done\n");
-
- if (list_empty(&ost->ost_reqs)) {
- CDEBUG(D_INODE, "woke because of signal\n");
- spin_unlock(&ost->ost_lock);
- } else {
- request = list_entry(ost->ost_reqs.next,
- struct ptlrpc_request,
- rq_list);
- list_del(&request->rq_list);
- spin_unlock(&ost->ost_lock);
- rc = ost_handle(obddev, request);
- }
- }
- }
-
- /* XXX maintain a list of all managed devices: cleanup here */
-
- ost->ost_thread = NULL;
- wake_up(&ost->ost_done_waitq);
- CERROR("lustre_ost: exiting\n");
- return 0;
-}
-
-static void ost_stop_srv_thread(struct ost_obd *ost)
-{
- ost->ost_flags |= OST_EXIT;
-
- while (ost->ost_thread) {
- wake_up(&ost->ost_waitq);
- sleep_on(&ost->ost_done_waitq);
- }
-}
-
-static void ost_start_srv_thread(struct obd_device *obd)
-{
- struct ost_obd *ost = &obd->u.ost;
- ENTRY;
-
- init_waitqueue_head(&ost->ost_waitq);
- init_waitqueue_head(&ost->ost_done_waitq);
- kernel_thread(ost_main, (void *)obd,
- CLONE_VM | CLONE_FS | CLONE_FILES);
- while (!ost->ost_thread)
- sleep_on(&ost->ost_done_waitq);
- EXIT;
-}
-
-/* mount the file system (secretly) */
-static int ost_setup(struct obd_device *obddev, obd_count len,
- void *buf)
-
-{
- struct obd_ioctl_data* data = buf;
- struct ost_obd *ost = &obddev->u.ost;
- struct obd_device *tgt;
- struct lustre_peer peer;
- int err;
- ENTRY;
-
- if (data->ioc_dev < 0 || data->ioc_dev > MAX_OBD_DEVICES) {
- EXIT;
- return -ENODEV;
- }
-
- tgt = &obd_dev[data->ioc_dev];
- ost->ost_tgt = tgt;
- if ( ! (tgt->obd_flags & OBD_ATTACHED) ||
- ! (tgt->obd_flags & OBD_SET_UP) ){
- CERROR("device not attached or not set up (%d)\n",
- data->ioc_dev);
- EXIT;
- return -EINVAL;
- }
-
- ost->ost_conn.oc_dev = tgt;
- err = tgt->obd_type->typ_ops->o_connect(&ost->ost_conn);
- if (err) {
- CERROR("lustre ost: fail to connect to device %d\n",
- data->ioc_dev);
- return -EINVAL;
- }
-
- INIT_LIST_HEAD(&ost->ost_reqs);
- ost->ost_thread = NULL;
- ost->ost_flags = 0;
-
- spin_lock_init(&obddev->u.ost.ost_lock);
-
- err = kportal_uuid_to_peer("self", &peer);
- if (err == 0) {
- OBD_ALLOC(ost->ost_service, sizeof(*ost->ost_service));
- if (ost->ost_service == NULL)
- return -ENOMEM;
- ost->ost_service->srv_buf_size = 64 * 1024;
- ost->ost_service->srv_portal = OST_REQUEST_PORTAL;
- memcpy(&ost->ost_service->srv_self, &peer, sizeof(peer));
- ost->ost_service->srv_wait_queue = &ost->ost_waitq;
-
- rpc_register_service(ost->ost_service, "self");
- }
-
- ost_start_srv_thread(obddev);
-
- MOD_INC_USE_COUNT;
- EXIT;
- return 0;
-}
-
-static int ost_cleanup(struct obd_device * obddev)
-{
- struct ost_obd *ost = &obddev->u.ost;
- struct obd_device *tgt;
- int err;
-
- ENTRY;
-
- if ( !(obddev->obd_flags & OBD_SET_UP) ) {
- EXIT;
- return 0;
- }
-
- if ( !list_empty(&obddev->obd_gen_clients) ) {
- CERROR("still has clients!\n");
- EXIT;
- return -EBUSY;
- }
-
- ost_stop_srv_thread(ost);
- rpc_unregister_service(ost->ost_service);
- OBD_FREE(ost->ost_service, sizeof(*ost->ost_service));
-
- if (!list_empty(&ost->ost_reqs)) {
- // XXX reply with errors and clean up
- CDEBUG(D_INODE, "Request list not empty!\n");
- }
-
- tgt = ost->ost_tgt;
- err = tgt->obd_type->typ_ops->o_disconnect(&ost->ost_conn);
- if (err) {
- CERROR("lustre ost: fail to disconnect device\n");
- return -EINVAL;
- }
-
-
- MOD_DEC_USE_COUNT;
- EXIT;
- return 0;
-}
-
-/* use obd ops to offer management infrastructure */
-static struct obd_ops ost_obd_ops = {
- o_setup: ost_setup,
- o_cleanup: ost_cleanup,
-};
-
-static int __init ost_init(void)
-{
- obd_register_type(&ost_obd_ops, LUSTRE_OST_NAME);
- return 0;
-}
-
-static void __exit ost_exit(void)
-{
- obd_unregister_type(LUSTRE_OST_NAME);
-}
-
-MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
-MODULE_DESCRIPTION("Lustre Object Storage Target (OST) v0.01");
-MODULE_LICENSE("GPL");
-
-// for testing (maybe this stays)
-EXPORT_SYMBOL(ost_queue_req);
-
-module_init(ost_init);
-module_exit(ost_exit);
+++ /dev/null
-.Xrefs
-config.log
-config.status
-configure
-Makefile
-Makefile.in
-.deps
-TAGS
+++ /dev/null
---- linux-2.2.10/include/linux/fs.h.org Tue Aug 3 15:09:33 1999
-+++ linux-2.2.10/include/linux/fs.h Tue Aug 3 15:10:34 1999
-@@ -897,6 +897,9 @@
- #include <linux/minix_fs.h>
- #include <linux/minix_fs_sb.h>
-
-+struct super_block *get_empty_super(void);
-+void remove_vfsmnt(kdev_t dev);
-+
- #endif /* __KERNEL__ */
-
- #endif
---- linux-2.2.10/fs/super.c.org Tue Aug 3 15:08:09 1999
-+++ linux-2.2.10/fs/super.c Tue Aug 3 15:10:41 1999
-@@ -135,7 +135,7 @@
- return lptr;
- }
-
--static void remove_vfsmnt(kdev_t dev)
-+void remove_vfsmnt(kdev_t dev)
- {
- struct vfsmount *lptr, *tofree;
-
-@@ -508,7 +508,7 @@
- /*
- * Find a super_block with no device assigned.
- */
--static struct super_block *get_empty_super(void)
-+struct super_block *get_empty_super(void)
- {
- struct super_block *s;
-
---- linux-2.2.10/kernel/ksyms.c.org Tue Aug 3 15:10:55 1999
-+++ linux-2.2.10/kernel/ksyms.c Tue Aug 3 15:11:56 1999
-@@ -78,6 +78,16 @@
- #endif
- EXPORT_SYMBOL(get_options);
-
-+/* obd stuff */
-+
-+
-+
-+EXPORT_SYMBOL(get_empty_super);
-+EXPORT_SYMBOL(remove_vfsmnt);
-+
-+
-+
-+
- /* process memory management */
- EXPORT_SYMBOL(do_mmap);
- EXPORT_SYMBOL(do_munmap);
+++ /dev/null
---- linux-2.2.10/include/linux/fs.h.org Tue Aug 3 15:09:33 1999
-+++ linux-2.2.10/include/linux/fs.h Tue Aug 3 15:10:34 1999
-@@ -897,6 +897,9 @@
- #include <linux/minix_fs.h>
- #include <linux/minix_fs_sb.h>
-
-+struct super_block *get_empty_super(void);
-+void remove_vfsmnt(kdev_t dev);
-+
- #endif /* __KERNEL__ */
-
- #endif
---- linux-2.2.10/fs/super.c.org Tue Aug 3 15:08:09 1999
-+++ linux-2.2.10/fs/super.c Tue Aug 3 15:10:41 1999
-@@ -135,7 +135,7 @@
- return lptr;
- }
-
--static void remove_vfsmnt(kdev_t dev)
-+void remove_vfsmnt(kdev_t dev)
- {
- struct vfsmount *lptr, *tofree;
-
-@@ -508,7 +508,7 @@
- /*
- * Find a super_block with no device assigned.
- */
--static struct super_block *get_empty_super(void)
-+struct super_block *get_empty_super(void)
- {
- struct super_block *s;
-
---- linux/kernel/ksyms.c.org Tue Aug 31 05:25:11 1999
-+++ linux/kernel/ksyms.c Tue Aug 31 05:31:31 1999
-@@ -114,6 +114,8 @@
- EXPORT_SYMBOL(init_mm);
-
- /* filesystem internal functions */
-+EXPORT_SYMBOL(get_empty_super);
-+EXPORT_SYMBOL(remove_vfsmnt);
- EXPORT_SYMBOL(in_group_p);
- EXPORT_SYMBOL(update_atime);
- EXPORT_SYMBOL(get_super);
+++ /dev/null
---- linux/include/linux/fs.h.org Tue Oct 12 10:39:59 1999
-+++ linux/include/linux/fs.h Tue Oct 12 11:32:46 1999
-@@ -934,6 +934,8 @@
-
-
- extern struct super_block *get_super(kdev_t);
-+struct super_block *get_empty_super(void);
-+void remove_vfsmnt(kdev_t dev);
- extern void put_super(kdev_t);
- unsigned long generate_cluster(kdev_t, int b[], int);
- unsigned long generate_cluster_swab32(kdev_t, int b[], int);
---- linux/fs/super.c.org Tue Oct 12 10:39:05 1999
-+++ linux/fs/super.c Tue Oct 12 11:18:14 1999
-@@ -135,7 +135,7 @@
- return lptr;
- }
-
--static void remove_vfsmnt(kdev_t dev)
-+void remove_vfsmnt(kdev_t dev)
- {
- struct vfsmount *lptr, *tofree;
-
-@@ -508,7 +508,7 @@
- /*
- * Find a super_block with no device assigned.
- */
--static struct super_block *get_empty_super(void)
-+struct super_block *get_empty_super(void)
- {
- struct super_block *s;
-
---- linux/kernel/ksyms.c.or Tue Oct 12 10:40:21 1999
-+++ linux/kernel/ksyms.c Tue Oct 12 11:22:45 1999
-@@ -36,6 +36,7 @@
- #include <linux/swap.h>
- #include <linux/ctype.h>
- #include <linux/file.h>
-+#include <linux/iobuf.h>
- #include <linux/console.h>
- #include <linux/poll.h>
- #include <linux/mm.h>
-@@ -118,6 +119,8 @@
- EXPORT_SYMBOL(update_atime);
- EXPORT_SYMBOL(get_super);
- EXPORT_SYMBOL(get_fs_type);
-+EXPORT_SYMBOL(get_empty_super);
-+EXPORT_SYMBOL(remove_vfsmnt);
- EXPORT_SYMBOL(getname);
- EXPORT_SYMBOL(_fput);
- EXPORT_SYMBOL(igrab);
-@@ -140,6 +143,9 @@
- EXPORT_SYMBOL(d_path);
- EXPORT_SYMBOL(__mark_buffer_dirty);
- EXPORT_SYMBOL(__mark_inode_dirty);
-+EXPORT_SYMBOL(free_kiovec);
-+EXPORT_SYMBOL(brw_kiovec);
-+EXPORT_SYMBOL(alloc_kiovec);
- EXPORT_SYMBOL(get_empty_filp);
- EXPORT_SYMBOL(init_private_file);
- EXPORT_SYMBOL(filp_open);
+++ /dev/null
---- /usr/src/linux-2.4.16/fs/reiserfs/file.c.obd-orig Thu Dec 13 14:35:00 2001
-+++ /usr/src/linux-2.4.16/fs/reiserfs/file.c Thu Dec 13 14:35:08 2001
-@@ -28,8 +28,8 @@
- struct reiserfs_transaction_handle th ;
- int windex ;
-
-- if (!S_ISREG (inode->i_mode))
-- BUG ();
-+ //if (!S_ISREG (inode->i_mode))
-+ //BUG ();
-
- /* fast out for when nothing needs to be done */
- if ((atomic_read(&inode->i_count) > 1 ||
---- /usr/src/linux-2.4.16/fs/namespace.c.obd-orig Tue Dec 11 20:44:15 2001
-+++ /usr/src/linux-2.4.16/fs/namespace.c Tue Dec 11 20:44:35 2001
-@@ -332,7 +332,7 @@
- }
- }
-
--static int do_umount(struct vfsmount *mnt, int flags)
-+int do_umount(struct vfsmount *mnt, int flags)
- {
- struct super_block * sb = mnt->mnt_sb;
- int retval = 0;
---- /usr/src/linux-2.4.16/kernel/ksyms.c.obd-orig Tue Dec 11 14:22:09 2001
-+++ /usr/src/linux-2.4.16/kernel/ksyms.c Tue Dec 11 18:05:30 2001
-@@ -268,6 +268,7 @@
- EXPORT_SYMBOL(__pollwait);
- EXPORT_SYMBOL(poll_freewait);
- EXPORT_SYMBOL(ROOT_DEV);
-+EXPORT_SYMBOL(pagecache_lock);
- EXPORT_SYMBOL(__find_get_page);
- EXPORT_SYMBOL(__find_lock_page);
- EXPORT_SYMBOL(grab_cache_page);
---- /usr/src/linux-2.4.16/mm/filemap.c.obd-orig Mon Nov 26 06:29:17 2001
-+++ /usr/src/linux-2.4.16/mm/filemap.c Tue Dec 11 14:29:50 2001
-@@ -2846,8 +2846,7 @@
- * file system has to do this all by itself, unfortunately.
- * okir@monad.swb.de
- */
--ssize_t
--generic_file_write(struct file *file,const char *buf,size_t count, loff_t *ppos)
-+ssize_t do_generic_file_write(struct file *file,const char *buf,size_t count,loff_t *ppos, int (*actor)(char *, char *, size_t ))
- {
- struct address_space *mapping = file->f_dentry->d_inode->i_mapping;
- struct inode *inode = mapping->host;
-@@ -2862,8 +2861,10 @@
- if ((ssize_t) count < 0)
- return -EINVAL;
-
-+#if 0
- if (!access_ok(VERIFY_READ, buf, count))
- return -EFAULT;
-+#endif
-
- cached_page = NULL;
-
-@@ -2987,10 +2988,12 @@
- * same page as we're writing to, without it being marked
- * up-to-date.
- */
-+#if 0
- { volatile unsigned char dummy;
- __get_user(dummy, buf);
- __get_user(dummy, buf+bytes-1);
- }
-+#endif
-
- status = -ENOMEM; /* we'll assign it later anyway */
- page = __grab_cache_page(mapping, index, &cached_page);
-@@ -3006,7 +3009,7 @@
- status = mapping->a_ops->prepare_write(file, page, offset, offset+bytes);
- if (status)
- goto unlock;
-- page_fault = __copy_from_user(kaddr+offset, buf, bytes);
-+ page_fault = actor(kaddr+offset, buf, bytes);
- flush_dcache_page(page);
- status = mapping->a_ops->commit_write(file, page, offset, offset+bytes);
- if (page_fault)
-@@ -3072,6 +3075,23 @@
- goto out_status;
- }
-
-+
-+static inline int actor_from_user(char *dst, char *src, size_t len)
-+{
-+ if (!access_ok(VERIFY_READ, src, len))
-+ return -EFAULT;
-+
-+ return __copy_from_user(dst, src, len);
-+}
-+
-+ssize_t
-+generic_file_write(struct file *file,const char *buf,size_t count,loff_t *ppos)
-+{
-+ return do_generic_file_write(file, buf, count, ppos, &actor_from_user);
-+}
-+
-+
-+
- void __init page_cache_init(unsigned long mempages)
- {
- unsigned long htable_size, order;
---- /usr/src/linux-2.4.16/include/linux/fs.h.obd-orig Tue Dec 11 14:23:29 2001
-+++ /usr/src/linux-2.4.16/include/linux/fs.h Tue Dec 11 20:45:00 2001
-@@ -978,8 +978,10 @@
- extern int register_filesystem(struct file_system_type *);
- extern int unregister_filesystem(struct file_system_type *);
- extern struct vfsmount *kern_mount(struct file_system_type *);
-+struct vfsmount *do_kern_mount(char *type, int flags, char *name, void *data);
- extern int may_umount(struct vfsmount *);
- extern long do_mount(char *, char *, char *, unsigned long, void *);
-+int do_umount(struct vfsmount *mnt, int flags);
-
- #define kern_umount mntput
-
-@@ -1044,6 +1046,35 @@
-
- asmlinkage long sys_open(const char *, int, int);
- asmlinkage long sys_close(unsigned int); /* yes, it's really unsigned */
-+asmlinkage ssize_t sys_read(unsigned int fd, char * buf, size_t count);
-+asmlinkage ssize_t sys_write(unsigned int fd, const char * buf, size_t count);
-+asmlinkage long sys_truncate64(const char * path, loff_t length);
-+asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
-+asmlinkage long sys_mount(char * dev_name, char * dir_name, char * type,
-+ unsigned long flags, void * data);
-+asmlinkage long sys_umount(char * name, int flags);
-+asmlinkage long sys_stat(char * filename, struct __old_kernel_stat * statbuf);
-+asmlinkage long sys_mknod(const char * filename, int mode, dev_t dev);
-+asmlinkage long sys_mkdir(const char * pathname, int mode);
-+asmlinkage long sys_rmdir(const char * pathname);
-+asmlinkage long sys_unlink(const char * pathname);
-+asmlinkage long sys_symlink(const char * oldname, const char * newname);
-+asmlinkage long sys_link(const char * oldname, const char * newname);
-+asmlinkage long sys_rename(const char * oldname, const char * newname);
-+asmlinkage long sys_lstat64(char * filename, struct stat64 * statbuf, long flags);
-+asmlinkage long sys_stat64(char * filename, struct stat64 * statbuf, long flags);
-+asmlinkage long sys_fstat64(unsigned long fd, struct stat64 * statbuf, long flags);
-+
-+
-+
-+
-+
-+
-+
-+
-+
-+
-+
- extern int do_truncate(struct dentry *, loff_t start);
-
- extern struct file *filp_open(const char *, int, int);
-@@ -1395,6 +1426,8 @@
- extern ssize_t generic_file_read(struct file *, char *, size_t, loff_t *);
- extern ssize_t generic_file_write(struct file *, const char *, size_t, loff_t *);
- extern void do_generic_file_read(struct file *, loff_t *, read_descriptor_t *, read_actor_t);
-+ssize_t do_generic_file_write(struct file *file,const char *buf,size_t count,loff_t *ppos, int (*actor)(char *, char *, size_t ));
-+
- extern loff_t no_llseek(struct file *file, loff_t offset, int origin);
- extern loff_t generic_file_llseek(struct file *file, loff_t offset, int origin);
- extern ssize_t generic_read_dir(struct file *, char *, size_t, loff_t *);
+++ /dev/null
---- linux-2.4.17/kernel/ksyms.c.lustre Fri Feb 22 15:26:38 2002
-+++ linux-2.4.17/kernel/ksyms.c Fri Feb 22 15:27:44 2002
-@@ -282,6 +282,11 @@
- EXPORT_SYMBOL(lock_may_write);
- EXPORT_SYMBOL(dcache_readdir);
-
-+/* lustre */
-+EXPORT_SYMBOL(pagecache_lock);
-+EXPORT_SYMBOL(do_kern_mount);
-+
-+
- /* for stackable file systems (lofs, wrapfs, cryptfs, etc.) */
- EXPORT_SYMBOL(default_llseek);
- EXPORT_SYMBOL(dentry_open);
---- linux-2.4.17/include/linux/fs.h.lustre Fri Feb 22 15:27:53 2002
-+++ linux-2.4.17/include/linux/fs.h Fri Feb 22 15:28:52 2002
-@@ -983,7 +984,7 @@
- extern struct vfsmount *kern_mount(struct file_system_type *);
- extern int may_umount(struct vfsmount *);
- extern long do_mount(char *, char *, char *, unsigned long, void *);
--
-+struct vfsmount *do_kern_mount(char *type, int flags, char *name, void *data);
- #define kern_umount mntput
-
- extern int vfs_statfs(struct super_block *, struct statfs *);
+++ /dev/null
---- linux/fs/super.c.orig Sat Sep 29 09:40:16 2001
-+++ linux/fs/super.c Sat Sep 29 09:40:42 2001
-@@ -695,7 +695,7 @@
- * the request.
- */
-
--static struct super_block *get_empty_super(void)
-+struct super_block *get_empty_super(void)
- {
- struct super_block *s;
-
---- linux/include/linux/fs.h.orig Sat Sep 29 09:42:14 2001
-+++ linux/include/linux/fs.h Sat Sep 29 09:42:55 2001
-@@ -1360,6 +1360,7 @@
- extern struct file_system_type *get_fs_type(const char *name);
- extern struct super_block *get_super(kdev_t);
- extern void put_super(kdev_t);
-+struct super_block *get_empty_super(void);
- unsigned long generate_cluster(kdev_t, int b[], int);
- unsigned long generate_cluster_swab32(kdev_t, int b[], int);
- extern kdev_t ROOT_DEV;
---- linux/kernel/ksyms.c.orig Sat Sep 29 09:40:56 2001
-+++ linux/kernel/ksyms.c Sat Sep 29 09:41:17 2001
-@@ -142,6 +142,7 @@
- EXPORT_SYMBOL(igrab);
- EXPORT_SYMBOL(iunique);
- EXPORT_SYMBOL(iget4);
-+EXPORT_SYMBOL(get_empty_super);
- EXPORT_SYMBOL(iput);
- EXPORT_SYMBOL(force_delete);
- EXPORT_SYMBOL(follow_up);
+++ /dev/null
-diff -u linux-2.4.9-ac10.orig/include/linux/fs.h linux-2.4.9-ac10/include/linux/fs.h
---- linux-2.4.9-ac10.orig/include/linux/fs.h Mon Sep 24 11:15:51 2001
-+++ linux-2.4.9-ac10/include/linux/fs.h Thu Sep 20 16:55:36 2001
-@@ -1440,6 +1440,7 @@
- extern int dcache_readdir(struct file *, void *, filldir_t);
-
- extern struct file_system_type *get_fs_type(const char *name);
-+struct vfsmount *do_kern_mount(char *type, int flags, char *name, void *data);
- extern struct super_block *get_super(kdev_t);
- extern void drop_super(struct super_block *sb);
- static inline int is_mounted(kdev_t dev)
-diff -u linux-2.4.9-ac10.orig/kernel/ksyms.c linux-2.4.9-ac10/kernel/ksyms.c
---- linux-2.4.9-ac10.orig/kernel/ksyms.c Mon Sep 24 11:15:52 2001
-+++ linux-2.4.9-ac10/kernel/ksyms.c Thu Sep 20 16:42:30 2001
-@@ -131,6 +131,7 @@
- EXPORT_SYMBOL(def_blk_fops);
- EXPORT_SYMBOL(update_atime);
- EXPORT_SYMBOL(get_fs_type);
-+EXPORT_SYMBOL(do_kern_mount);
- EXPORT_SYMBOL(get_super);
- EXPORT_SYMBOL(drop_super);
- EXPORT_SYMBOL(getname);
+++ /dev/null
---- rpm/build/kernel-2.4.9/linux/include/linux/fs.h Mon Nov 5 22:20:00 2001
-+++ linux/include/linux/fs.h Mon Nov 5 22:24:09 2001
-@@ -1049,6 +1049,7 @@
- extern int register_filesystem(struct file_system_type *);
- extern int unregister_filesystem(struct file_system_type *);
- extern struct vfsmount *kern_mount(struct file_system_type *);
-+struct vfsmount *do_kern_mount(char *type, int flags, char *name, void *data);
- extern int may_umount(struct vfsmount *);
- extern long do_mount(char *, char *, char *, unsigned long, void *);
-
-@@ -1474,6 +1475,7 @@
- extern ssize_t generic_file_read(struct file *, char *, size_t, loff_t *);
- extern ssize_t generic_file_write(struct file *, const char *, size_t, loff_t *);
- extern void do_generic_file_read(struct file *, loff_t *, read_descriptor_t *, read_actor_t, int);
-+ssize_t do_generic_file_write(struct file *file,const char *buf,size_t count,loff_t *ppos, int (*actor)(char *, char *, size_t ));
-
- extern ssize_t generic_read_dir(struct file *, char *, size_t, loff_t *);
- extern loff_t generic_file_llseek(struct file *, loff_t, int);
---- rpm/build/kernel-2.4.9/linux/kernel/ksyms.c Mon Nov 5 22:20:00 2001
-+++ linux/kernel/ksyms.c Mon Nov 5 22:29:41 2001
-@@ -246,6 +246,7 @@
- EXPORT_SYMBOL(do_generic_file_read);
- EXPORT_SYMBOL(flush_inode_pages);
- EXPORT_SYMBOL(generic_file_write);
-+EXPORT_SYMBOL(do_generic_file_write);
- EXPORT_SYMBOL(generic_file_mmap);
- EXPORT_SYMBOL(generic_ro_fops);
- EXPORT_SYMBOL(generic_buffer_fdatasync);
-@@ -286,6 +287,7 @@
- EXPORT_SYMBOL(__pollwait);
- EXPORT_SYMBOL(poll_freewait);
- EXPORT_SYMBOL(ROOT_DEV);
-+//EXPORT_SYMBOL(pagecache_lock);
- EXPORT_SYMBOL(__find_get_page);
- EXPORT_SYMBOL(__find_lock_page);
- EXPORT_SYMBOL(find_get_page_simple);
-@@ -371,6 +373,7 @@
- EXPORT_SYMBOL(register_filesystem);
- EXPORT_SYMBOL(unregister_filesystem);
- EXPORT_SYMBOL(kern_mount);
-+EXPORT_SYMBOL(do_kern_mount);
- EXPORT_SYMBOL(__mntput);
- EXPORT_SYMBOL(may_umount);
-
---- rpm/build/kernel-2.4.9/linux/mm/filemap.c Mon Nov 5 22:20:00 2001
-+++ linux/mm/filemap.c Mon Nov 5 22:16:57 2001
-@@ -2672,7 +2672,7 @@
- * okir@monad.swb.de
- */
- ssize_t
--generic_file_write(struct file *file,const char *buf,size_t count,loff_t *ppos)
-+do_generic_file_write(struct file *file,const char *buf,size_t count,loff_t *ppos, int (*actor)(char *, char *, size_t ))
- {
- struct inode *inode = file->f_dentry->d_inode;
- struct address_space *mapping = inode->i_mapping;
-@@ -2686,8 +2686,10 @@
-
- cached_page = NULL;
-
-+#if 0
- if (!access_ok(VERIFY_READ, buf, count))
- return -EFAULT;
-+#endif
-
- down(&inode->i_sem);
-
-@@ -2794,10 +2796,12 @@
- * same page as we're writing to, without it being marked
- * up-to-date.
- */
-+#if 0
- { volatile unsigned char dummy;
- __get_user(dummy, buf);
- __get_user(dummy, buf+bytes-1);
- }
-+#endif
-
- status = -ENOMEM; /* we'll assign it later anyway */
- page = __grab_cache_page(mapping, index, &cached_page);
-@@ -2813,7 +2817,7 @@
- if (status)
- goto sync_failure;
- kaddr = page_address(page);
-- page_fault = __copy_from_user(kaddr+offset, buf, bytes);
-+ page_fault = actor(kaddr+offset, buf, bytes);
- flush_dcache_page(page);
- status = mapping->a_ops->commit_write(file, page, offset, offset+bytes);
- if (page_fault)
-@@ -2870,6 +2874,21 @@
- vmtruncate(inode, inode->i_size);
- goto done;
- }
-+
-+static inline int actor_from_user(char *dst, char *src, size_t len)
-+{
-+ if (!access_ok(VERIFY_READ, src, len))
-+ return -EFAULT;
-+
-+ return __copy_from_user(dst, src, len);
-+}
-+
-+ssize_t
-+generic_file_write(struct file *file,const char *buf,size_t count,loff_t *ppos)
-+{
-+ return do_generic_file_write(file, buf, count, ppos, &actor_from_user);
-+}
-+
-
- void __init page_cache_init(unsigned long mempages)
- {
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2002 Cluster File Systems, Inc.
- *
- * This file is part of Lustre, http://www.lustre.org.
- *
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#define EXPORT_SYMTAB
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-
-#define DEBUG_SUBSYSTEM S_RPC
-
-#include <linux/obd_support.h>
-#include <linux/lustre_net.h>
-
-static ptl_handle_eq_t sent_pkt_eq, rcvd_rep_eq,
- bulk_source_eq, bulk_sink_eq;
-
-
-struct ptlrpc_request *ptlrpc_prep_req(struct ptlrpc_client *cl,
- int opcode, int namelen, char *name,
- int tgtlen, char *tgt)
-{
- struct ptlrpc_request *request;
- int rc;
- ENTRY;
-
- OBD_ALLOC(request, sizeof(*request));
- if (!request) {
- CERROR("request allocation out of memory\n");
- return NULL;
- }
-
- memset(request, 0, sizeof(*request));
- request->rq_xid = cl->cli_xid++;
-
- rc = cl->cli_req_pack(name, namelen, tgt, tgtlen,
- &request->rq_reqhdr, &request->rq_req,
- &request->rq_reqlen, &request->rq_reqbuf);
- if (rc) {
- CERROR("cannot pack request %d\n", rc);
- return NULL;
- }
- request->rq_reqhdr->opc = opcode;
- request->rq_reqhdr->seqno = request->rq_xid;
-
- EXIT;
- return request;
-}
-
-void ptlrpc_free_req(struct ptlrpc_request *request)
-{
- OBD_FREE(request, sizeof(*request));
-}
-
-/* Abort this request and cleanup any resources associated with it. */
-int ptl_abort_rpc(struct ptlrpc_request *request)
-{
- /* First remove the MD for the reply; in theory, this means
- * that we can tear down the buffer safely. */
- PtlMEUnlink(request->rq_reply_me_h);
- PtlMDUnlink(request->rq_reply_md_h);
-
- if (request->rq_bulklen != 0) {
- PtlMEUnlink(request->rq_bulk_me_h);
- PtlMDUnlink(request->rq_bulk_md_h);
- }
-
- return 0;
-}
-
-int ptlrpc_queue_wait(struct ptlrpc_request *req, struct ptlrpc_client *cl)
-{
- int rc;
- DECLARE_WAITQUEUE(wait, current);
-
- init_waitqueue_head(&req->rq_wait_for_rep);
-
- if (cl->cli_enqueue) {
- /* Local delivery */
- ENTRY;
- rc = cl->cli_enqueue(req);
- } else {
- /* Remote delivery via portals. */
- req->rq_req_portal = cl->cli_request_portal;
- req->rq_reply_portal = cl->cli_reply_portal;
- rc = ptl_send_rpc(req, &cl->cli_server);
- }
- if (rc) {
- CERROR("error %d, opcode %d\n", rc,
- req->rq_reqhdr->opc);
- return -rc;
- }
-
- CDEBUG(0, "-- sleeping\n");
- add_wait_queue(&req->rq_wait_for_rep, &wait);
- while (req->rq_repbuf == NULL) {
- set_current_state(TASK_INTERRUPTIBLE);
-
- /* if this process really wants to die, let it go */
- if (sigismember(&(current->pending.signal), SIGKILL) ||
- sigismember(&(current->pending.signal), SIGINT))
- break;
-
- schedule();
- }
- remove_wait_queue(&req->rq_wait_for_rep, &wait);
- set_current_state(TASK_RUNNING);
- CDEBUG(0, "-- done\n");
-
- if (req->rq_repbuf == NULL) {
- /* We broke out because of a signal. Clean up the dangling
- * reply buffers! */
- ptl_abort_rpc(req);
- EXIT;
- return -EINTR;
- }
-
- rc = cl->cli_rep_unpack(req->rq_repbuf, req->rq_replen, &req->rq_rephdr,
- &req->rq_rep);
- if (rc) {
- CERROR("unpack_rep failed: %d\n", rc);
- return rc;
- }
- CERROR("got rep %lld\n", req->rq_rephdr->seqno);
- if ( req->rq_rephdr->status == 0 )
- CDEBUG(0, "--> buf %p len %d status %d\n",
- req->rq_repbuf, req->rq_replen,
- req->rq_rephdr->status);
-
- EXIT;
- return 0;
-}
-/*
- * Free the packet when it has gone out
- */
-static int sent_packet_callback(ptl_event_t *ev, void *data)
-{
- ENTRY;
-
- if (ev->type == PTL_EVENT_SENT) {
- OBD_FREE(ev->mem_desc.start, ev->mem_desc.length);
- } else {
- // XXX make sure we understand all events, including ACK's
- CERROR("Unknown event %d\n", ev->type);
- BUG();
- }
-
- EXIT;
- return 1;
-}
-
-/*
- * Wake up the thread waiting for the reply once it comes in.
- */
-static int rcvd_reply_callback(ptl_event_t *ev, void *data)
-{
- struct ptlrpc_request *rpc = ev->mem_desc.user_ptr;
- ENTRY;
-
- if (ev->type == PTL_EVENT_PUT) {
- rpc->rq_repbuf = ev->mem_desc.start + ev->offset;
- barrier();
- wake_up_interruptible(&rpc->rq_wait_for_rep);
- } else {
- // XXX make sure we understand all events, including ACK's
- CERROR("Unknown event %d\n", ev->type);
- BUG();
- }
-
- EXIT;
- return 1;
-}
-
-static int server_request_callback(ptl_event_t *ev, void *data)
-{
- struct ptlrpc_service *service = data;
- int rc;
-
- if (ev->rlength != ev->mlength)
- CERROR("Warning: Possibly truncated rpc (%d/%d)\n",
- ev->mlength, ev->rlength);
-
- /* The ME is unlinked when there is less than 1024 bytes free
- * on its MD. This ensures we are always able to handle the rpc,
- * although the 1024 value is a guess as to the size of a
- * large rpc (the known safe margin should be determined).
- *
- * NOTE: The portals API by default unlinks all MD's associated
- * with an ME when it's unlinked. For now, this behavior
- * has been commented out of the portals library so the
- * MD can be unlinked when its ref count drops to zero.
- * A new MD and ME will then be created that use the same
- * kmalloc()'ed memory and inserted at the ring tail.
- */
-
- service->srv_ref_count[service->srv_md_active]++;
-
- if (ev->offset >= (service->srv_buf_size - 1024)) {
- CDEBUG(D_INODE, "Unlinking ME %d\n", service->srv_me_active);
-
- rc = PtlMEUnlink(service->srv_me_h[service->srv_me_active]);
- service->srv_me_h[service->srv_me_active] = 0;
-
- if (rc != PTL_OK) {
- CERROR("PtlMEUnlink failed - DROPPING soon: %d\n", rc);
- return rc;
- }
-
- service->srv_me_active = NEXT_INDEX(service->srv_me_active,
- service->srv_ring_length);
-
- if (service->srv_me_h[service->srv_me_active] == 0)
- CERROR("All %d ring ME's are unlinked!\n",
- service->srv_ring_length);
- }
-
- if (ev->type == PTL_EVENT_PUT) {
- wake_up(service->srv_wait_queue);
- } else {
- CERROR("Unexpected event type: %d\n", ev->type);
- }
-
- return 0;
-}
-
-static int bulk_source_callback(ptl_event_t *ev, void *data)
-{
- struct ptlrpc_request *rpc = ev->mem_desc.user_ptr;
-
- ENTRY;
-
- if (ev->type == PTL_EVENT_SENT) {
- CDEBUG(D_NET, "got SENT event\n");
- } else if (ev->type == PTL_EVENT_ACK) {
- CDEBUG(D_NET, "got ACK event\n");
- rpc->rq_bulkbuf = NULL;
- wake_up_interruptible(&rpc->rq_wait_for_bulk);
- } else {
- CERROR("Unexpected event type!\n");
- BUG();
- }
-
- EXIT;
- return 1;
-}
-
-static int bulk_sink_callback(ptl_event_t *ev, void *data)
-{
- struct ptlrpc_request *rpc = ev->mem_desc.user_ptr;
-
- ENTRY;
-
- if (ev->type == PTL_EVENT_PUT) {
- if (rpc->rq_bulkbuf != ev->mem_desc.start + ev->offset)
- CERROR("bulkbuf != mem_desc -- why?\n");
- //wake_up_interruptible(&rpc->rq_wait_for_bulk);
- } else {
- CERROR("Unexpected event type!\n");
- BUG();
- }
-
- EXIT;
- return 1;
-}
-
-int ptl_send_buf(struct ptlrpc_request *request, struct lustre_peer *peer,
- int portal)
-{
- int rc;
- ptl_process_id_t remote_id;
- ptl_handle_md_t md_h;
- ptl_ack_req_t ack;
-
- switch (request->rq_type) {
- case PTLRPC_BULK:
- request->rq_req_md.start = request->rq_bulkbuf;
- request->rq_req_md.length = request->rq_bulklen;
- request->rq_req_md.eventq = bulk_source_eq;
- request->rq_req_md.threshold = 2; /* SENT and ACK events */
- ack = PTL_ACK_REQ;
- break;
- case PTLRPC_REQUEST:
- request->rq_req_md.start = request->rq_reqbuf;
- request->rq_req_md.length = request->rq_reqlen;
- request->rq_req_md.eventq = sent_pkt_eq;
- request->rq_req_md.threshold = 1;
- ack = PTL_NOACK_REQ;
- break;
- case PTLRPC_REPLY:
- request->rq_req_md.start = request->rq_repbuf;
- request->rq_req_md.length = request->rq_replen;
- request->rq_req_md.eventq = sent_pkt_eq;
- request->rq_req_md.threshold = 1;
- ack = PTL_NOACK_REQ;
- break;
- default:
- BUG();
- }
- request->rq_req_md.options = PTL_MD_OP_PUT;
- request->rq_req_md.user_ptr = request;
-
- rc = PtlMDBind(peer->peer_ni, request->rq_req_md, &md_h);
- if (rc != 0) {
- BUG();
- CERROR("PtlMDBind failed: %d\n", rc);
- return rc;
- }
-
- remote_id.addr_kind = PTL_ADDR_NID;
- remote_id.nid = peer->peer_nid;
- remote_id.pid = 0;
-
- CERROR("Sending %d bytes to portal %d, xid %d\n",
- request->rq_req_md.length, portal, request->rq_xid);
-
- rc = PtlPut(md_h, ack, remote_id, portal, 0, request->rq_xid, 0, 0);
- if (rc != PTL_OK) {
- BUG();
- CERROR("PtlPut(%d, %d, %d) failed: %d\n", remote_id.nid,
- portal, request->rq_xid, rc);
- /* FIXME: tear down md */
- }
-
- return rc;
-}
-
-int ptl_send_rpc(struct ptlrpc_request *request, struct lustre_peer *peer)
-{
- ptl_process_id_t local_id;
- int rc;
- char *repbuf;
-
- ENTRY;
-
- if (request->rq_replen == 0) {
- CERROR("request->rq_replen is 0!\n");
- EXIT;
- return -EINVAL;
- }
-
- /* request->rq_repbuf is set only when the reply comes in, in
- * client_packet_callback() */
- OBD_ALLOC(repbuf, request->rq_replen);
- if (!repbuf) {
- EXIT;
- return -ENOMEM;
- }
-
- local_id.addr_kind = PTL_ADDR_GID;
- local_id.gid = PTL_ID_ANY;
- local_id.rid = PTL_ID_ANY;
-
- CERROR("sending req %d\n", request->rq_xid);
- rc = PtlMEAttach(peer->peer_ni, request->rq_reply_portal, local_id,
- request->rq_xid, 0, PTL_UNLINK,
- &request->rq_reply_me_h);
- if (rc != PTL_OK) {
- CERROR("PtlMEAttach failed: %d\n", rc);
- BUG();
- EXIT;
- goto cleanup;
- }
-
- request->rq_type = PTLRPC_REQUEST;
- request->rq_reply_md.start = repbuf;
- request->rq_reply_md.length = request->rq_replen;
- request->rq_reply_md.threshold = 1;
- request->rq_reply_md.options = PTL_MD_OP_PUT;
- request->rq_reply_md.user_ptr = request;
- request->rq_reply_md.eventq = rcvd_rep_eq;
-
- rc = PtlMDAttach(request->rq_reply_me_h, request->rq_reply_md,
- PTL_UNLINK, &request->rq_reply_md_h);
- if (rc != PTL_OK) {
- CERROR("PtlMDAttach failed: %d\n", rc);
- BUG();
- EXIT;
- goto cleanup2;
- }
-
- if (request->rq_bulklen != 0) {
- rc = PtlMEAttach(peer->peer_ni, request->rq_bulk_portal,
- local_id, request->rq_xid, 0, PTL_UNLINK,
- &request->rq_bulk_me_h);
- if (rc != PTL_OK) {
- CERROR("PtlMEAttach failed: %d\n", rc);
- BUG();
- EXIT;
- goto cleanup3;
- }
-
- request->rq_bulk_md.start = request->rq_bulkbuf;
- request->rq_bulk_md.length = request->rq_bulklen;
- request->rq_bulk_md.threshold = 1;
- request->rq_bulk_md.options = PTL_MD_OP_PUT;
- request->rq_bulk_md.user_ptr = request;
- request->rq_bulk_md.eventq = bulk_sink_eq;
-
- rc = PtlMDAttach(request->rq_bulk_me_h,
- request->rq_bulk_md, PTL_UNLINK,
- &request->rq_bulk_md_h);
- if (rc != PTL_OK) {
- CERROR("PtlMDAttach failed: %d\n", rc);
- BUG();
- EXIT;
- goto cleanup4;
- }
- }
-
- return ptl_send_buf(request, peer, request->rq_req_portal);
-
- cleanup4:
- PtlMEUnlink(request->rq_bulk_me_h);
- cleanup3:
- PtlMDUnlink(request->rq_reply_md_h);
- cleanup2:
- PtlMEUnlink(request->rq_reply_me_h);
- cleanup:
- OBD_FREE(repbuf, request->rq_replen);
-
- return rc;
-}
-
-/* ptl_received_rpc() should be called by the sleeping process once
- * it finishes processing an event. This ensures the ref count is
- * decremented and that the rpc ring buffer cycles properly.
- */
-int ptl_received_rpc(struct ptlrpc_service *service) {
- int rc, index;
-
- index = service->srv_md_active;
- CDEBUG(D_INFO, "MD index=%d Ref Count=%d\n", index,
- service->srv_ref_count[index]);
- service->srv_ref_count[index]--;
-
- if ((service->srv_ref_count[index] <= 0) &&
- (service->srv_me_h[index] == 0)) {
-
- /* Replace the unlinked ME and MD */
- rc = PtlMEInsert(service->srv_me_h[service->srv_me_tail],
- service->srv_id, 0, ~0, PTL_RETAIN,
- PTL_INS_AFTER, &(service->srv_me_h[index]));
- CDEBUG(D_INFO, "Inserting new ME and MD in ring, rc %d\n", rc);
- service->srv_me_tail = index;
- service->srv_ref_count[index] = 0;
-
- if (rc != PTL_OK) {
- CERROR("PtlMEInsert failed: %d\n", rc);
- return rc;
- }
-
- service->srv_md[index].start = service->srv_buf[index];
- service->srv_md[index].length = service->srv_buf_size;
- service->srv_md[index].threshold = PTL_MD_THRESH_INF;
- service->srv_md[index].options = PTL_MD_OP_PUT;
- service->srv_md[index].user_ptr = service;
- service->srv_md[index].eventq = service->srv_eq_h;
-
- rc = PtlMDAttach(service->srv_me_h[index],
- service->srv_md[index],
- PTL_RETAIN, &(service->srv_md_h[index]));
-
- CDEBUG(D_INFO, "Attach MD in ring, rc %d\n", rc);
- if (rc != PTL_OK) {
- /* XXX cleanup */
- BUG();
- CERROR("PtlMDAttach failed: %d\n", rc);
- return rc;
- }
-
- service->srv_md_active =
- NEXT_INDEX(index, service->srv_ring_length);
- }
-
- return 0;
-}
-
-int rpc_register_service(struct ptlrpc_service *service, char *uuid)
-{
- struct lustre_peer peer;
- int rc, i;
-
- rc = kportal_uuid_to_peer(uuid, &peer);
- if (rc != 0) {
- CERROR("Invalid uuid \"%s\"\n", uuid);
- return -EINVAL;
- }
-
- service->srv_ring_length = RPC_RING_LENGTH;
- service->srv_me_active = 0;
- service->srv_md_active = 0;
-
- service->srv_id.addr_kind = PTL_ADDR_GID;
- service->srv_id.gid = PTL_ID_ANY;
- service->srv_id.rid = PTL_ID_ANY;
-
- rc = PtlEQAlloc(peer.peer_ni, 128, server_request_callback,
- service, &(service->srv_eq_h));
-
- if (rc != PTL_OK) {
- CERROR("PtlEQAlloc failed: %d\n", rc);
- return rc;
- }
-
- /* Attach the leading ME on which we build the ring */
- rc = PtlMEAttach(peer.peer_ni, service->srv_portal,
- service->srv_id, 0, ~0, PTL_RETAIN,
- &(service->srv_me_h[0]));
-
- if (rc != PTL_OK) {
- CERROR("PtlMEAttach failed: %d\n", rc);
- return rc;
- }
-
- for (i = 0; i < service->srv_ring_length; i++) {
- OBD_ALLOC(service->srv_buf[i], service->srv_buf_size);
-
- if (service->srv_buf[i] == NULL) {
- CERROR("no memory\n");
- return -ENOMEM;
- }
-
- /* Insert additional ME's to the ring */
- if (i > 0) {
- rc = PtlMEInsert(service->srv_me_h[i-1],
- service->srv_id, 0, ~0, PTL_RETAIN,
- PTL_INS_AFTER,&(service->srv_me_h[i]));
- service->srv_me_tail = i;
-
- if (rc != PTL_OK) {
- CERROR("PtlMEInsert failed: %d\n", rc);
- return rc;
- }
- }
-
- service->srv_ref_count[i] = 0;
- service->srv_md[i].start = service->srv_buf[i];
- service->srv_md[i].length = service->srv_buf_size;
- service->srv_md[i].threshold = PTL_MD_THRESH_INF;
- service->srv_md[i].options = PTL_MD_OP_PUT;
- service->srv_md[i].user_ptr = service;
- service->srv_md[i].eventq = service->srv_eq_h;
-
- rc = PtlMDAttach(service->srv_me_h[i], service->srv_md[i],
- PTL_RETAIN, &(service->srv_md_h[i]));
-
- if (rc != PTL_OK) {
- /* cleanup */
- CERROR("PtlMDAttach failed: %d\n", rc);
- return rc;
- }
- }
-
- return 0;
-}
-
-int rpc_unregister_service(struct ptlrpc_service *service)
-{
- int rc, i;
-
- for (i = 0; i < service->srv_ring_length; i++) {
- rc = PtlMDUnlink(service->srv_md_h[i]);
- if (rc)
- CERROR("PtlMDUnlink failed: %d\n", rc);
-
- rc = PtlMEUnlink(service->srv_me_h[i]);
- if (rc)
- CERROR("PtlMEUnlink failed: %d\n", rc);
-
- OBD_FREE(service->srv_buf[i], service->srv_buf_size);
- }
-
- rc = PtlEQFree(service->srv_eq_h);
- if (rc)
- CERROR("PtlEQFree failed: %d\n", rc);
-
- return 0;
-}
-
-static int req_init_portals(void)
-{
- int rc;
- const ptl_handle_ni_t *nip;
- ptl_handle_ni_t ni;
-
- nip = inter_module_get_request(LUSTRE_NAL "_ni", LUSTRE_NAL);
- if (nip == NULL) {
- CERROR("get_ni failed: is the NAL module loaded?\n");
- return -EIO;
- }
- ni = *nip;
-
- rc = PtlEQAlloc(ni, 128, sent_packet_callback, NULL, &sent_pkt_eq);
- if (rc != PTL_OK)
- CERROR("PtlEQAlloc failed: %d\n", rc);
-
- rc = PtlEQAlloc(ni, 128, rcvd_reply_callback, NULL, &rcvd_rep_eq);
- if (rc != PTL_OK)
- CERROR("PtlEQAlloc failed: %d\n", rc);
-
- rc = PtlEQAlloc(ni, 128, bulk_source_callback, NULL, &bulk_source_eq);
- if (rc != PTL_OK)
- CERROR("PtlEQAlloc failed: %d\n", rc);
-
- rc = PtlEQAlloc(ni, 128, bulk_sink_callback, NULL, &bulk_sink_eq);
- if (rc != PTL_OK)
- CERROR("PtlEQAlloc failed: %d\n", rc);
-
- return rc;
-}
-
-static int __init ptlrpc_init(void)
-{
- return req_init_portals();
-}
-
-static void __exit ptlrpc_exit(void)
-{
- PtlEQFree(sent_pkt_eq);
- PtlEQFree(rcvd_rep_eq);
- PtlEQFree(bulk_source_eq);
- PtlEQFree(bulk_sink_eq);
-
- inter_module_put(LUSTRE_NAL "_ni");
-
- return;
-}
-
-MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
-MODULE_DESCRIPTION("Lustre Request Processor v1.0");
-MODULE_LICENSE("GPL");
-
-module_init(ptlrpc_init);
-module_exit(ptlrpc_exit);
+++ /dev/null
-.Xrefs
-config.log
-config.status
-configure
-Makefile
-Makefile.in
-.deps
-TAGS
+++ /dev/null
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-EXTRA_DIST = license-status maketags.sh mkobddevs obd.spec obdtrace_demo.scr
+++ /dev/null
-#! /bin/sh
-# license-status - Display the status of files in the current directory
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-#
-# Gordon Matzigkeit <gord@fig.org>, 2001-09-27
-
-for f in `find . -type f | sort`; do
- case "$f" in
- *~ | *.orig | *.gz | */config.* | *.o | \
- */CVS/* | */.cvsignore | */.depfiles/* | \
- */COPYING | */ChangeLog)
- continue
- ;;
- esac
-
- if head -20 "$f" | egrep -e 'GNU' > /dev/null; then
- echo "gpled $f"
- elif head -20 "$f" | egrep -e '\([Cc]\)' > /dev/null; then
- echo "copyrighted $f"
- else
- echo "bare $f"
- fi
-done | sort
+++ /dev/null
-#!/bin/sh
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-set -vx
-rm -f TAGS ; find . -name '*.h' -or -name '*.c' | xargs etags
-rm -f ctags; find . -name '*.h' -or -name '*.c' | xargs ctags
+++ /dev/null
-#!/bin/sh -x
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-mknod -m 0600 /dev/obd0 c 186 0
-mknod -m 0600 /dev/obd1 c 186 1
-mknod -m 0600 /dev/obd2 c 186 2
-mknod -m 0600 /dev/obd3 c 186 3
-mknod -m 0600 /dev/obd4 c 186 4
-mknod -m 0600 /dev/obd5 c 186 5
-mknod -m 0600 /dev/obd6 c 186 6
-mknod -m 0600 /dev/obd7 c 186 7
+++ /dev/null
-# obd.spec
-%define version 0.007
-%define kversion 2.4.9
-%define aclevel ac10
-%define izolevel 2
-Release: 0
-%define extraversion -%{aclevel}
-%define kuname %{kversion}%{extraversion}
-%define knamever %{kversion}_%{aclevel}
-%define bdir $RPM_BUILD_DIR/obd-%{version}-%{knamever}
-
-Summary: Object-Based Disk utility programs
-Name: lustre
-Version: %{version}
-Copyright: GPL
-Group: Utilities/System
-Requires: lustre-modules, perl-Storable, perl-Term-ReadLine-Gnu
-BuildRoot: /var/tmp/obd-%{version}-root
-Source: ftp://ftp.lustre.com/pub/lustre/obd-%{version}.tar.gz
-
-%description
-Object-Based Disk utilities and demonstration scripts.
-
-%package -n lustre-modules
-Summary: Object-Based Disk storage drivers for Linux %{kuname}
-Group: Development/Kernel
-#Requires: kernel-intermezzo = %{knamever}_%{izolevel}
-
-%description -n lustre-modules
-Object-Based Disk storage drivers for Linux %{kuname}.
-
-%package -n lustre-source
-Summary: Object-Based Disk storage driver source
-Group: Development/Kernel
-
-%description -n lustre-source
-Object-Based Disk storage driver source.
-
-%prep
-%setup -n obd-%{version}
-
-%build
-rm -rf $RPM_BUILD_ROOT
-
-# Create the pristine source directory.
-mkdir -p $RPM_BUILD_ROOT/usr/src/obd-%{version}
-tar -cf - . | (cd $RPM_BUILD_ROOT/usr/src/obd-%{version} && tar -xvBpf -)
-
-# Set an explicit path to our Linux tree, if we can.
-enable=
-linuxdir=/usr/src/linux-%{kuname}
-test -d $linuxdir && enable=--enable-linuxdir=$linuxdir
-./configure $enable
-make
-
-%install
-make install prefix=$RPM_BUILD_ROOT
-
-%files
-%attr(-, root, root) %doc COPYING FDL
-%attr(-, root, root) %doc doc/API.txt doc/OBD-HOWTO.sgml doc/obdspec.sgml
-%attr(-, root, root) %doc doc/OLVM.txt doc/figs doc/notes.txt
-%attr(-, root, root) %doc doc/obdtrace_demo.txt
-%attr(-, root, root) /usr/bin/obdcontrol
-
-%files -n lustre-modules
-%attr(-, root, root) %doc COPYING
-%attr(-, root, root) /lib/modules/%{kuname}/fs/obd*.o
-
-%files -n lustre-source
-%attr(-, root, root) /usr/src/obd-%{version}
-
-%post
-depmod -ae || exit 0
-
-%postun
-depmod -ae || exit 0
-
-%clean
-#rm -rf $RPM_BUILD_ROOT
-
-# end of file
+++ /dev/null
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-# Print OS version
-shell uname -r
-# Insert Lustre kernel modules
-insmod class/obdclass.o
-procsys trace 0
-procsys debug 0
-insmod ext2obd/obdext2.o
-insmod obdtrace/obdtrace.o
-insmod obdfs/obdfs.o
-# Configure direct driver on /dev/obd0
-device /dev/obd0
-attach obdext2
-setup /dev/sda2
-# Configure obdtrace on /dev/obd1
-device /dev/obd1
-attach obdtrace
-setup /dev/obd0
-# What's the obd status
-status
-shell cat /proc/lustre/obd/1/stats
-# mount obd file system
-shell mkdir -p /mnt/obd
-shell mount -t obdfs -odevice=/dev/obd1 none /mnt/obd
-shell mount
-# Prepare a data set (tar file of current directory)
-shell rm -f /tmp/obdtrace_test.tar
-shell tar cf /tmp/obdtrace_test.tar .
-# make a directory on obd device
-shell mkdir -p /mnt/obd/obdtrace_test_dir
-# Unpack tarfile to obd device
-shell tar -C /mnt/obd/obdtrace_test_dir -xf /tmp/obdtrace_test.tar
-shell rm -rf /mnt/obd/obdtrace_test_dir
-# Check obdtrace performance stats
-status
-shell cat /proc/lustre/obd/1/stats
-shell echo 0 > /proc/lustre/obd/1/stats
-shell cat /proc/lustre/obd/1/stats
-# Umount file system
-shell umount /mnt/obd
-# Cleanup /tmp
-shell rm -f /tmp/obdtrace_test.tar
-# Dismantle /dev/obd1
-device /dev/obd1
-cleanup
-detach
-close
-# Dismantle /dev/obd0
-device /dev/obd0
-cleanup
-detach
-close
-# Remove all loaded kernel modules
-rmmod obdfs
-rmmod obdtrace
-rmmod obdext2
-rmmod obdclass
+++ /dev/null
-.Xrefs
-config.log
-config.status
-configure
-Makefile
-Makefile.in
-.deps
-TAGS
+++ /dev/null
-CFLAGS:=-g -I. -I/usr/include/glib-1.2 -I/usr/lib/glib/include -I../include -Wall
-KFLAGS:=
-CPPFLAGS :=
-# LDADD := -lreadline -ltermcap # -lefence
-bin_PROGRAMS = testreq truncate
-
-testreq_SOURCES = testreq.c
-truncate_SOURCES = truncate.c
-
+++ /dev/null
-if [ -d /r ]; then
- R=/r
-fi
-
-if [ -b /dev/loop0 ]; then
- LOOP=/dev/loop
-else
- if [ -b /dev/loop/0 ]; then
- LOOP=/dev/loop/
- else
- echo "Cannot find /dev/loop0 or /dev/loop/0";
- exit -1
- fi
-fi
+++ /dev/null
-#! /bin/bash
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-#!/bin/sh
-
-R=/r
-
-insmod /lib/modules/2.4.17/kernel/drivers/block/loop.o
-dd if=/dev/zero of=/tmp/fs bs=1024 count=10000
-mke2fs -b 4096 -F /tmp/fs
-losetup /dev/loop/0 /tmp/fs
-
-insmod $R/usr/src/obd/class/obdclass.o
-insmod $R/usr/src/obd/ext2obd/obdext2.o
-mknod /dev/obd c 10 241
-
-$R/usr/src/obd/utils/obdctl <<EOF
-device 0
-attach obdext2
-setup /dev/loop/0
-quit
-EOF
-
-insmod $R/usr/src/obd/obdfs/obdfs.o
-mount -t obdfs -o device=0 none /mnt
+++ /dev/null
-#!/bin/sh
-
-SRCDIR="`dirname $0`"
-. $SRCDIR/common.sh
-
-mknod /dev/portals c 10 240
-
-insmod $R/usr/src/portals/linux/oslib/portals.o
-insmod $R/usr/src/portals/linux/socknal/ksocknal.o
-
-$R/usr/src/portals/linux/utils/acceptor 1234 &
-
-insmod $R/usr/src/obd/rpc/ptlrpc.o
-insmod $R/usr/src/obd/class/obdclass.o
-insmod $R/usr/src/obd/ext2obd/obdext2.o
-insmod $R/usr/src/obd/ost/ost.o
-insmod $R/usr/src/obd/osc/osc.o
-insmod $R/usr/src/obd/mds/mds.o
-insmod $R/usr/src/obd/mdc/mdc.o
-insmod $R/usr/src/obd/llight/llight.o
-
-dd if=/dev/zero of=/tmp/ost bs=1024 count=10000
-mke2fs -b 4096 -F /tmp/ost
-losetup ${LOOP}0 /tmp/ost
-
-dd if=/dev/zero of=/tmp/mds bs=1024 count=10000
-mke2fs -b 4096 -F /tmp/mds
-losetup ${LOOP}1 /tmp/mds
-
-mknod /dev/obd c 10 241
-echo 8291 > /proc/sys/obd/debug
-echo 8291 > /proc/sys/obd/trace
-
-$R/usr/src/obd/utils/obdctl <<EOF
-device 0
-attach mds
-setup ${LOOP}1 ext2
-device 1
-attach obdext2
-setup ${LOOP}0
-device 2
-attach ost
-setup 1
-device 3
-attach osc
-setup 2
-quit
-EOF
-
-mkdir /mnt/obd
-# mount -t lustre_light -o device=3 none /mnt/obd
+++ /dev/null
-#!/bin/sh
-export PATH=/sbin:/usr/sbin:$PATH
-
-SRCDIR="`dirname $0`"
-. $SRCDIR/common.sh
-
-SERVER=compila
-
-mknod /dev/portals c 10 240
-
-insmod $R/usr/src/portals/linux/oslib/portals.o
-# insmod $R/usr/src/portals/linux/socknal/ksocknal.o
-insmod $R/usr/src/portals/linux/qswnal/kqswnal.o
-
-$R/usr/src/portals/linux/utils/ptlctl <<EOF
-mynid
-setup elan
-connect 5
-add_uuid self
-add_uuid mds
-EOF
-
-insmod $R/usr/src/obd/rpc/ptlrpc.o
-insmod $R/usr/src/obd/class/obdclass.o
-insmod $R/usr/src/obd/ext2obd/obdext2.o
-insmod $R/usr/src/obd/ost/ost.o
-insmod $R/usr/src/obd/osc/osc.o
-insmod $R/usr/src/obd/mds/mds.o
-insmod $R/usr/src/obd/mdc/mdc.o
-insmod $R/usr/src/obd/llight/llight.o
-
-dd if=/dev/zero of=/tmp/ost bs=1024 count=10000
-mke2fs -b 4096 -F /tmp/ost
-losetup ${LOOP}0 /tmp/ost
-
-mknod /dev/obd c 10 241
-
-$R/usr/src/obd/utils/obdctl <<EOF
-device 1
-attach obdext2
-setup ${LOOP}0
-device 2
-attach ost
-setup 1
-device 3
-attach osc
-setup 2
-quit
-EOF
-
-mkdir /mnt/obd
-# mount -t lustre_light -o device=3 none /mnt/obd
+++ /dev/null
-#!/bin/sh
-
-export PATH=/sbin:/usr/sbin:$PATH
-
-SRCDIR="`dirname $0`"
-. $SRCDIR/common.sh
-
-mknod /dev/portals c 10 240
-
-insmod $R/usr/src/portals/linux/oslib/portals.o
-# insmod $R/usr/src/portals/linux/socknal/ksocknal.o
-insmod $R/usr/src/portals/linux/qswnal/kqswnal.o
-
-# $R/usr/src/portals/linux/utils/acceptor 1234 &
-
-$R/usr/src/portals/linux/utils/ptlctl <<EOF
-mynid
-setup elan
-connect 5
-add_uuid self
-EOF
-
-insmod $R/usr/src/obd/rpc/ptlrpc.o
-insmod $R/usr/src/obd/class/obdclass.o
-insmod $R/usr/src/obd/ext2obd/obdext2.o
-insmod $R/usr/src/obd/ost/ost.o
-insmod $R/usr/src/obd/mds/mds.o
-
-dd if=/dev/zero of=/tmp/ost bs=1024 count=10000
-mke2fs -b 4096 -F /tmp/ost
-losetup ${LOOP}0 /tmp/ost
-
-dd if=/dev/zero of=/tmp/mds bs=1024 count=10000
-mke2fs -b 4096 -F /tmp/mds
-losetup ${LOOP}1 /tmp/mds
-
-mknod /dev/obd c 10 241
-
-$R/usr/src/obd/utils/obdctl <<EOF
-device 0
-attach mds
-setup ${LOOP}1 ext2
-device 1
-attach obdext2
-setup ${LOOP}0
-device 2
-attach ost
-setup 1
-quit
-EOF
+++ /dev/null
-#!/bin/sh
-
-SRCDIR="`dirname $0`"
-. $SRCDIR/common.sh
-
-mknod /dev/portals c 10 240
-
-insmod $R/usr/src/portals/linux/oslib/portals.o || exit -1
-insmod $R/usr/src/portals/linux/socknal/ksocknal.o || exit -1
-
-$R/usr/src/portals/linux/utils/acceptor 1234 &
-
-insmod $R/usr/src/obd/class/obdclass.o || exit -1
-insmod $R/usr/src/obd/rpc/ptlrpc.o || exit -1
-insmod $R/usr/src/obd/ext2obd/obdext2.o || exit -1
-insmod $R/usr/src/obd/ost/ost.o || exit -1
-insmod $R/usr/src/obd/osc/osc.o || exit -1
-insmod $R/usr/src/obd/mds/mds.o || exit -1
-insmod $R/usr/src/obd/mdc/mdc.o || exit -1
-insmod $R/usr/src/obd/llight/llight.o || exit -1
-
-$R/usr/src/obd/utils/obdctl modules > $R/tmp/ogdb
-echo "The GDB module script is in /tmp/ogdb. Press enter to continue"
-read
-
-$R/usr/src/portals/linux/utils/ptlctl <<EOF
-mynid localhost
-setup tcp
-connect localhost 1234
-add_uuid self
-add_uuid mds
-add_uuid ost
-quit
-EOF
-
-dd if=/dev/zero of=/tmp/ost bs=1024 count=10000
-mke2fs -b 4096 -F /tmp/ost
-losetup ${LOOP}0 /tmp/ost || exit -1
-
-dd if=/dev/zero of=/tmp/mds bs=1024 count=10000
-mke2fs -b 4096 -F /tmp/mds
-losetup ${LOOP}1 /tmp/mds || exit -1
-
-mknod /dev/obd c 10 241
-echo 8291 > /proc/sys/obd/debug
-echo 8291 > /proc/sys/obd/trace
-
-$R/usr/src/obd/utils/obdctl <<EOF
-device 0
-attach mds
-setup ${LOOP}1 ext2
-device 1
-attach obdext2
-setup ${LOOP}0
-device 2
-attach ost
-setup 1
-device 3
-attach osc
-setup
-quit
-EOF
-
-mkdir /mnt/obd
-mount -t lustre_light -o device=3 none /mnt/obd
+++ /dev/null
-#!/bin/sh
-
-SRCDIR="`dirname $0`"
-. $SRCDIR/common.sh
-
-umount /mnt/obd
-
-rmmod llight
-rmmod mdc
-
-$R/usr/src/obd/utils/obdctl <<EOF
-device 3
-cleanup
-detach
-device 2
-cleanup
-detach
-device 1
-cleanup
-detach
-device 0
-cleanup
-detach
-quit
-EOF
-
-rmmod mds
-rmmod osc
-rmmod ost
-rmmod obdext2
-rmmod ptlrpc
-rmmod obdclass
-
-$R/usr/src/portals/linux/utils/ptlctl <<EOF
-setup tcp
-disconnect localhost
-del_uuid self
-del_uuid mds
-del_uuid ost
-quit
-EOF
-
-rmmod ksocknal
-killall acceptor
-rmmod portals
-
-losetup -d ${LOOP}0
-losetup -d ${LOOP}1
\ No newline at end of file
+++ /dev/null
-#!/bin/sh
-
-SRCDIR="`dirname $0`"
-. $SRCDIR/common.sh
-
-mknod /dev/portals c 10 240
-
-insmod $R/usr/src/portals/linux/oslib/portals.o
-insmod $R/usr/src/portals/linux/socknal/ksocknal.o
-
-$R/usr/src/portals/linux/utils/acceptor 1234 &
-
-$R/usr/src/portals/linux/utils/ptlctl <<EOF
-mynid
-setup tcp
-connect localhost 1234
-add_uuid self
-add_uuid mds
-EOF
-
-insmod $R/usr/src/obd/rpc/ptlrpc.o
-insmod $R/usr/src/obd/class/obdclass.o
-insmod $R/usr/src/obd/ext2obd/obdext2.o
-insmod $R/usr/src/obd/ost/ost.o
-insmod $R/usr/src/obd/osc/osc.o
-insmod $R/usr/src/obd/mds/mds.o
-insmod $R/usr/src/obd/mdc/mdc.o
-insmod $R/usr/src/obd/llight/llight.o
-
-dd if=/dev/zero of=/tmp/fs bs=1024 count=10000
-mke2fs -b 4096 -F /tmp/fs
-losetup ${LOOP}0 /tmp/fs
-
-mknod /dev/obd c 10 241
-
-$R/usr/src/obd/utils/obdctl <<EOF
-device 0
-attach mds
-setup ${LOOP}0 ext2
-quit
-EOF
-
-mknod /dev/request c 10 244
-# $R/usr/src/obd/tests/testreq
\ No newline at end of file
+++ /dev/null
-#!/bin/sh
-
-SRCDIR="`dirname $0`"
-. $SRCDIR/common.sh
-
-rmmod llight
-rmmod mdc
-
-$R/usr/src/obd/utils/obdctl <<EOF
-device 0
-cleanup
-detach
-quit
-EOF
-
-rmmod mds
-rmmod osc
-rmmod ost
-rmmod obdext2
-rmmod obdclass
-rmmod ptlrpc
-
-$R/usr/src/portals/linux/utils/ptlctl <<EOF
-setup tcp
-disconnect localhost
-del_uuid self
-del_uuid mds
-EOF
-
-losetup -d ${LOOP}0
-
-killall acceptor
-rmmod ksocknal
-rmmod portals
+++ /dev/null
-#!/bin/sh
-
-SRCDIR="`dirname $0`"
-. $SRCDIR/common.sh
-
-SERVER=localhost
-
-mknod /dev/portals c 10 240
-
-insmod $R/usr/src/portals/linux/oslib/portals.o || exit -1
-insmod $R/usr/src/portals/linux/socknal/ksocknal.o || exit -1
-
-$R/usr/src/portals/linux/utils/acceptor 1234 &
-
-$R/usr/src/portals/linux/utils/ptlctl <<EOF
-mynid
-setup tcp
-connect $SERVER 1234
-add_uuid ost
-add_uuid self
-quit
-EOF
-
-insmod $R/usr/src/obd/rpc/ptlrpc.o || exit -1
-insmod $R/usr/src/obd/class/obdclass.o || exit -1
-insmod $R/usr/src/obd/ext2obd/obdext2.o || exit -1
-insmod $R/usr/src/obd/ost/ost.o || exit -1
-insmod $R/usr/src/obd/osc/osc.o || exit -1
-
-dd if=/dev/zero of=/tmp/fs bs=1024 count=10000
-mke2fs -F /tmp/fs
-losetup ${LOOP}0 /tmp/fs || exit -1
-
-echo 4095 > /proc/sys/obd/debug
-echo 4095 > /proc/sys/obd/trace
-
-mknod /dev/obd c 10 241
-
-$R/usr/src/obd/utils/obdctl <<EOF
-device 0
-attach obdext2
-setup ${LOOP}0
-device 1
-attach ost
-setup 0
-device 2
-attach osc
-setup
-quit
-EOF
+++ /dev/null
-#!/bin/sh
-
-echo 0 > /proc/sys/obd/trace
-echo 0 > /proc/sys/obd/debug
-cd /mnt/obd
-cp /usr/src/obd/demos/dbench/client.txt .
-/usr/src/obd/demos/dbench/dbench $1
+++ /dev/null
-#!/bin/sh
-# Utility script to test several features of a snapshot filesystem
-# Assumes that snapshot has already been configured
-#
-# Copyright (C) 2001 Cluster File Systems, Inc.
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-
-OBDDIR="`dirname $0`/.."
-. $OBDDIR/demos/config.sh
-
-qrun ls $MNTOBD
-qrun chown bin.bin $MNTOBD
-qrun ls -ld $MNTOBD
-qrun ls -ld $MNTSNAP
-qrun cp /etc/hosts $MNTOBD
-qrun ls $MNTOBD
-qrun ls $MNTSNAP
-
-# More complicated because we can't pass ">>" as an argument easily
-echo -n "Run 'echo today >> $MNTOBD/hello' [Y/n]" ; read JUNK
-case $JUNK in
- n*|N*) echo "not run" ;;
- *) plog log "echo today >> $MNTOBD/hello"
- echo "today" >> $MNTOBD/hello ;;
-esac
-
-qrun cat $MNTOBD/hello
-qrun cat $MNTSNAP/hello
-qrun cat $MNTOBD/link
-qrun cat $MNTSNAP/link
-qrun rm $MNTOBD/goodbye
-qrun ls $MNTOBD
-qrun ls $MNTSNAP
-qrun cat $MNTSNAP/goodbye
+++ /dev/null
-/*
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-#include <asm/statfs.h>
-#include <unistd.h>
-
-#define OBD_IOC_CREATE _IOR('f', 3, long)
-#define OBD_IOC_SETUP _IOW('f', 4, long)
-#define OBD_IOC_SYNC _IOR('f', 16, long)
-#define OBD_IOC_DESTROY _IOW('f', 6, long)
-#define OBD_IOC_STATFS _IORW('f', 15, long)
-
-#define LOOP_DEVICE "/dev/loop0"
-#define OBD_DEVICE "/dev/obd"
-
-int main (int argc, char * argv[])
-{
- int fd, rc, err = -1;
- struct stat stat_buf;
- struct statfs stfs;
-
-
- if (argc < 2) {
- printf("syntax: %s command [argument]\n", argv[0]);
- printf("Where command is one of \"setup\", \"create\", \"destroy\", or \"sync\".\n");
- exit(1);
- }
- if (stat(LOOP_DEVICE, &stat_buf)) {
- printf("Couldn't stat(" LOOP_DEVICE ").\n");
- exit(1);
- }
- printf("Device: %u\n", (unsigned int) stat_buf.st_rdev);
-
- fd = open (OBD_DEVICE, O_RDONLY);
- if (fd == -1) {
- printf("Couldn't open " OBD_DEVICE ".\n");
- exit(1);
- }
-
- if (!strcmp(argv[1], "setup")) {
- rc = ioctl(fd, OBD_IOC_SETUP, &stat_buf.st_rdev);
- fprintf(stderr, "rc = %d, errno = %d\n", rc, errno);
- } else if (!strcmp(argv[1], "create")) {
- int iter, i;
-
- if (argc < 3) {
- printf("create requires a nonzero argument.\n");
- exit(1);
- }
-
- iter = atoi(argv[2]);
- if (iter < 1) {
- printf("create requires a nonzero argument.\n");
- exit(1);
- }
- printf("creating %d objects...\n", iter);
-
- for (i = 0; i < iter; i++) {
- if ((rc = ioctl(fd, OBD_IOC_CREATE, &err))) {
- fprintf(stderr, "Error; aborting.\n");
- break;
- }
- if ((rc = ioctl(fd, OBD_IOC_DESTROY, &err))) {
- fprintf(stderr, "Error; aborting.\n");
- break;
- }
- }
- fprintf(stderr, "rc = %d, errno = %d, err = %d\n",
- rc, errno, err);
- } else if (!strcmp(argv[1], "sync")) {
- rc = ioctl(fd, OBD_IOC_SYNC, &err);
- fprintf(stderr, "rc = %d, errno = %d, err = %d\n",
- rc, errno, err);
- } else if (!strcmp(argv[1], "destroy")) {
- int ino;
-
- if (argc < 3) {
- printf("destroy requires a nonzero inode number.\n");
- exit(1);
- }
-
- ino = atoi(argv[2]);
- if (ino < 1) {
- printf("destroy requires a nonzero inode number.\n");
- exit(1);
- }
-
- rc = ioctl(fd, OBD_IOC_DESTROY, &ino);
- fprintf(stderr, "rc = %d, errno = %d\n", rc, errno);
- } else {
- printf("Invalid command, run with no arguments for help.\n");
- }
- close(fd);
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (C) 2001 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <sys/types.h>
-
-/* Beware when setting FSROOT that I've not made any attempts to avoid buffer
- * overruns below--this is a test program, it's a static buffer. */
-#define FSROOT "/mnt"
-#define OBD_ITERATIONS 10000
-
-int main (int argc, char * argv[])
-{
- int fd, rc, err = -1;
- struct stat stat_buf;
-
- if (argc < 2) {
- printf("syntax: %s command\n", argv[0]);
- printf("Where command is one of \"setup\" or \"create\".\n");
- exit(1);
- }
-
- if (!strcmp(argv[1], "setup")) {
- printf("This is silly.\n");
- } else if (!strcmp(argv[1], "create")) {
- int i, iter;
-
- if (argc < 3) {
- printf("create requires a nonzero argument.\n");
- exit(1);
- }
-
- iter = atoi(argv[2]);
-
- if (iter < 1) {
- printf("create requires a nonzero argument.\n");
- exit(1);
- }
- printf("creating %d files...\n", iter);
-
- for (i = 0; i < iter; i++) {
- fd = creat(FSROOT "/foo123", S_IRWXU);
- close(fd);
- unlink(FSROOT "/foo123");
- }
- } else {
- printf("Invalid command, run with no arguments for help.\n");
- }
-
- return 0;
-}
+++ /dev/null
-#include <stdio.h>
-#include <sys/ioctl.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <string.h>
-
-#define IOC_REQUEST_GETATTR _IOWR('f', 30, long)
-#define IOC_REQUEST_READPAGE _IOWR('f', 31, long)
-#define IOC_REQUEST_SETATTR _IOWR('f', 32, long)
-#define IOC_REQUEST_CREATE _IOWR('f', 33, long)
-
-int main(int argc, char **argv)
-{
- int fd, rc;
- int cmd = IOC_REQUEST_GETATTR;
-
- printf("ioctl type %d, nr %d size %d\n",
- _IOC_TYPE(cmd), _IOC_NR(cmd), _IOC_SIZE(cmd));
-
- fd = open("/dev/request", O_RDONLY);
- if (fd == -1) {
- printf("error opening /dev/request: %s\n", strerror(errno));
- return 1;
- }
-
- printf("getattr test... ");
- rc = ioctl(fd, IOC_REQUEST_GETATTR, NULL);
- printf("result: %d\n", rc);
-
- printf("readpage test... ");
- rc = ioctl(fd, IOC_REQUEST_READPAGE, NULL);
- printf("result: %d\n", rc);
-
- printf("setattr test... ");
- rc = ioctl(fd, IOC_REQUEST_SETATTR, NULL);
- printf("result: %d\n", rc);
-
- printf("create test... ");
- rc = ioctl(fd, IOC_REQUEST_CREATE, NULL);
- printf("result: %d\n", rc);
- return 0;
-}
+++ /dev/null
-#include <unistd.h>
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
-#include <stdlib.h>
-
-int main(int argc, char **argv)
-{
- unsigned long off;
- int err;
-
- if (argc != 3) {
- printf("usage %s file offset\n", argv[0]);
- return 1;
- }
-
- off = strtoul(argv[2], NULL, 0);
- err = truncate(argv[1], off);
- if ( err ) {
- printf("Error truncating %s: %s\n", argv[1], strerror(errno));
- }
- return err;
-}
+++ /dev/null
-.Xrefs
-config.log
-config.status
-configure
-Makefile
-Makefile.in
-.deps
-TAGS
+++ /dev/null
-DEFS:=
-
-bin_SCRIPTS = obdcontrol
-EXTRA_DIST = $(bin_SCRIPTS)
-
-CFLAGS:=-g -I. -I/usr/include/glib-1.2 -I$(PORTALS)/include -I/usr/lib/glib/include -I../include -Wall
-KFLAGS:=
-CPPFLAGS :=
-LDADD := -lreadline -ltermcap # -lefence
-bin_PROGRAMS = obdctl
-obdctl_SOURCES = parser.c obdctl.c
+++ /dev/null
-package Pack;
-use Carp;
-use Exporter;
-@EXPORT = qw(LOGL, UNLOGL, LOGU32, UNLOGU32, LLOGU32, LUNLOGU32, LOGU64, UNLOGU64, LLOGU64, LUNLOGU64);
-
-sub round_len {
- return ($_[0] + 3) & ~0x3;
-}
-
-sub roundq_len {
- return ($_[0] + 3) & ~0x7;
-}
-
-# pack a string $_[2]
-# at $offset ($_[1])
-# in $buf ($_[0])
-# padd to 32bit alignment move $_[1] forward
-
-sub LOGL{
- my $len = length($_[2]);
- my $rlen = round_len($len);
- my $padd = $rlen + $off - length($_[0]);
-
- if ($padd > 0) {
- $_[0] .= pack "x$padd";
- }
- substr $_[0], $_[1], $len, $_[2];
- $_[1] += $rlen;
-}
-
-# pack $_[2], a u32, into $_[0] at offset $_[1]
-sub LOGU32 {
- if ($_[1] != round_len($_[1])) {
- confess "packing I on non-word boundary";
- }
- my $padd = 4 + $off - length($_[0]);
-
- if ($padd > 0) {
- $_[0] .= pack "L", $_[2];
- } else {
- substr $_[0], $_[1], $len, pack "L", $_[2];
- }
- $_[1] += 4;
-}
-
-# pack $_[2], a u32, into $_[0] at offset $_[1]
-# use little endian
-sub LLOGU32 {
- if ($_[1] != round_len($_[1])) {
- confess "packing V on non-word boundary";
- }
- my $padd = 4 + $off - length($_[0]);
-
- if ($padd > 0) {
- $_[0] .= pack "V", $_[2];
- } else {
- substr $_[0], $_[1], $len, pack "V", $_[2];
- }
- $_[1] += 4;
-}
-
-sub LLOGU64 {
- if ($_[1] != roundq_len($_[1])) {
- confess "packing Q on non-word boundary";
- }
- my $padd = 8 + $off - length($_[0]);
-
- if ($padd > 0) {
- $_[0] .= pack "VV", $_[3], $_[2];
- } else {
- substr $_[0], $_[1], $len, pack "VV", $_[3], $_[2];
- }
- $_[1] += 8;
-}
-
-sub LLOGU64 {
- if ($_[1] != roundq_len($_[1])) {
- confess "packing Q on non-word boundary";
- }
- my $padd = 8 + $off - length($_[0]);
-
- if ($padd > 0) {
- $_[0] .= pack "LL", $_[3], $_[2];
- } else {
- substr $_[0], $_[1], $len, pack "LL", $_[3], $_[2];
- }
- $_[1] += 8;
-}
-
-sub UNLOGL {
- if (length($_[0]) < $_[1] + round_len($_[2]) ) {
- confess "unpacking buf beyond string length";
- }
-
- $_[3] = unpack "x$_[1]a$_[2]", $_[0];
- $_[1] += round_len($_[2]);
- return $_[3];
-}
-
-sub UNLOGU32 {
- if (length($_[0]) < $_[1] + 4) {
- confess "unpacking u32 beyond string length";
- }
-
- $_[2] = unpack "x$_[1]L", $_[0];
- $_[1] += 4;
- return $_[2];
-}
-
-sub LUNLOGU32 {
- if (length($_[0]) < $_[1] + 4) {
- confess "lunpacking u32 beyond string length";
- }
- $_[2] = unpack "x$_[1]V", $_[0];
- $_[1] += 4;
- return $_[2];
-}
-
-sub UNLOGU64 {
- if (length($_[0]) < $_[1] + 8) {
- confess "unpacking u64 beyond string length";
- }
-
- ($_[3], $_[2]) = unpack "x$_[1]LL", $_[0];
- $_[1] += 8;
- return ($_[2], $_[3]);
-}
-
-sub LUNLOGU64 {
- if (length($_[0]) < $_[1] + 8) {
- confess "lunpacking u64 beyond string length";
- }
-
- ($_[3], $_[2]) = unpack "x$_[1]VV", $_[0];
- $_[1] += 8;
- return ($_[2], $_[3]);
-}
-
-sub test {
- $buf = "";
- $off = 0;
-
- LOGL($buf, $off, "moose");
- print "off $off\n";
- printf "len %d\n", length($buf);
- LLOGU64($buf, $off, 0x01020304, 0x05060708);
- print "off $off\n";
- printf "len %d\n", length($buf);
- LLOGU32($buf, $off, 0x01020304);
- print "off $off\n";
- printf "len %d\n", length($buf);
- $off = 0;
- UNLOGL($buf, $off, length("moose"), $str);
- print "off $off $str\n";
- LUNLOGU64($buf, $off, $high, $low);
- printf "off $off high %x low %x\n", $high, $low;
- LUNLOGU32($buf, $off, $low);
- printf "off $off long %x\n", $low;
-
- $off = 0;
- $str = UNLOGL($buf, $off, length("moose"));
- print "assigned off $off $str\n";
- ($high, $low) = LUNLOGU64($buf, $off);
- printf "assigned off $off high %x low %x\n", $high, $low;
- $low = LUNLOGU32($buf, $off, $low);
- printf "assigned off $off long %x\n", $low;
-
- sysopen F, "/tmp/out", 2;
- syswrite F, $buf, length($buf);
-}
-
-# test();
+++ /dev/null
-#!/usr/bin/perl
-
-#
-# This code is issued under the GNU General Public License.
-# See the file COPYING in this distribution
-#
-# Copyright (C) 1998, Stelias Computing
-#
-# Modified for InterMezzo from Gordian's HSM bcache device/jcm module
-# Copyright (C) 1999, Carnegie Mellon University
-#
-# Derived from InterMezzo's incontrol, modified for OBD's
-# Copyright (C) 1999, Stelias Computing
-#
-#
-
-#use strict;
-BEGIN { require "asm/errno.ph" };
-BEGIN { require "asm/ioctl.ph" };
-
-# p2ph generated invalid macros for ioctl stuff, so I override some of it here
-eval 'sub OBD_IOC_CREATE () { &_IOC(2, ord(\'f\'), 3, 4);}' unless
- defined(&OBD_IOC_CREATE);
-eval 'sub OBD_IOC_SETUP () { &_IOC(1, ord(\'f\'), 4, 4);}' unless
- defined(&OBD_IOC_SETUP);
-eval 'sub OBD_IOC_CLEANUP () { &_IOC(0, ord(\'f\'), 5, 0);}' unless
- defined(&OBD_IOC_CLEANUP);
-eval 'sub OBD_IOC_DESTROY () { &_IOC(1, ord(\'f\'), 6, 4);}' unless
- defined(&OBD_IOC_DESTROY);
-eval 'sub OBD_IOC_PREALLOCATE () { &_IOC(3, ord(\'f\'), 7, 4);}' unless
- defined(&OBD_IOC_PREALLOCATE);
-# FIXME: obsolete?
-eval 'sub OBD_IOC_DEC_USE_COUNT () { &_IOC(0, ord(\'f\'), 8, 0);}' unless
- defined(&OBD_IOC_DEC_USE_COUNT);
-eval 'sub OBD_IOC_SETATTR () { &_IOC(1, ord(\'f\'), 9, 4);}' unless
- defined(&OBD_IOC_SETATTR);
-eval 'sub OBD_IOC_GETATTR () { &_IOC(2, ord(\'f\'), 10, 4);}' unless
- defined(&OBD_IOC_GETATTR);
-eval 'sub OBD_IOC_READ () { &_IOC(3, ord(\'f\'), 11, 4);}' unless
- defined(&OBD_IOC_READ);
-eval 'sub OBD_IOC_WRITE () { &_IOC(3, ord(\'f\'), 12, 4);}' unless
- defined(&OBD_IOC_WRITE);
-eval 'sub OBD_IOC_CONNECT () { &_IOC(2, ord(\'f\'), 13, 4);}' unless
- defined(&OBD_IOC_CONNECT);
-eval 'sub OBD_IOC_DISCONNECT () { &_IOC(1, ord(\'f\'), 14, 4);}' unless
- defined(&OBD_IOC_DISCONNECT);
-eval 'sub OBD_IOC_STATFS () { &_IOC(3, ord(\'f\'), 15, 4);}' unless
- defined(&OBD_IOC_STATFS);
-eval 'sub OBD_IOC_SYNC () { &_IOC(2, ord(\'f\'), 16, 4);}' unless
- defined(&OBD_IOC_SYNC);
-# FIXME: obsolete?
-eval 'sub OBD_IOC_READ2 () { &_IOC(3, ord(\'f\'), 17, 4);}' unless
- defined(&OBD_IOC_READ2);
-# FIXME: obsolete?
-eval 'sub OBD_IOC_FORMATOBD () { &_IOC(3, ord(\'f\'), 18, 4);}' unless
- defined(&OBD_IOC_FORMATOBD);
-# FIXME: obsolete?
-eval 'sub OBD_IOC_PARTITION () { &_IOC(3, ord(\'f\'), 19, 4);}' unless
- defined(&OBD_IOC_PARTITION);
-eval 'sub OBD_IOC_ATTACH () { &_IOC(3, ord(\'f\'), 20, 4);}' unless
- defined(&OBD_IOC_ATTACH);
-eval 'sub OBD_IOC_DETACH () { &_IOC(3, ord(\'f\'), 21, 4);}' unless
- defined(&OBD_IOC_DETACH);
-eval 'sub OBD_IOC_COPY () { &_IOC(3, ord(\'f\'), 22, 4);}' unless
- defined(&OBD_IOC_COPY);
-eval 'sub OBD_IOC_MIGR () { &_IOC(3, ord(\'f\'), 23, 4);}' unless
- defined(&OBD_IOC_MIGR);
-eval 'sub OBD_IOC_PUNCH () { &_IOC(3, ord(\'f\'), 24, 4);}' unless
- defined(&OBD_IOC_PUNCH);
-eval 'sub OBD_SNAP_SETTABLE () { &_IOC(3, ord(\'f\'), 40, 4);}' unless
- defined(&OBD_SNAP_SETTABLE);
-eval 'sub OBD_SNAP_PRINTTABLE () { &_IOC(3, ord(\'f\'), 41, 4);}' unless
- defined(&OBD_SNAP_PRINTTABLE);
-eval 'sub OBD_SNAP_DELETE() { &_IOC(3, ord(\'f\'), 42, 4);}' unless
- defined(&OBD_SNAP_DELETE);
-eval 'sub OBD_SNAP_RESTORE() { &_IOC(3, ord(\'f\'), 43, 4);}' unless
- defined(&OBD_SNAP_RESTORE);
-
-eval 'sub OBD_EXT2_RUNIT () { &_IOC(3, ord(\'f\'), 61, 4);}' unless
- defined(&OBD_EXT2_RUNIT);
-
-eval 'sub OBD_MD_FLALL () {~0;}' unless defined(&OBD_MD_FLALL);
-eval 'sub OBD_MD_FLATIME () {1<<1;}' unless defined(&OBD_MD_FLATIME);
-eval 'sub OBD_MD_FLMTIME () {1<<2;}' unless defined(&OBD_MD_FLMTIME);
-eval 'sub OBD_MD_FLCTIME () {1<<3;}' unless defined(&OBD_MD_FLCTIME);
-eval 'sub OBD_MD_FLSIZE () {1<<4;}' unless defined(&OBD_MD_FLSIZE);
-eval 'sub OBD_MD_FLMODE () {1<<7;}' unless defined(&OBD_MD_FLMODE);
-eval 'sub OBD_MD_FLUID () {1<<8;}' unless defined(&OBD_MD_FLUID);
-eval 'sub OBD_MD_FLGID () {1<<9;}' unless defined(&OBD_MD_FLGID);
-
-use Getopt::Long;
-use File::stat;
-use Storable;
-use Carp;
-use Term::ReadLine;
-use IO::Handle;
-use Pack;
-
-
-# NOTE long long are layed out in ia32 memory as follows:
-# u = 0xaaaabbbbccccdddd has ccccdddd at &u and aaaabbbb 4 bytes on
-# this may be different on other architectures
-
-# we use 32-bit integers for all 64-bit quantities in this program
-# #define OBD_INLINESZ 60
-# #define OBD_OBDMDSZ 60
-# /* Note: 64-bit types are 64-bit aligned in structure */
-# struct obdo {
-# obd_id o_id;
-# obd_gr o_gr;
-# obd_time o_atime;
-# obd_time o_mtime;
-# obd_time o_ctime;
-# obd_size o_size;
-# obd_blocks o_blocks;
-# obd_blksize o_blksize;
-# obd_mode o_mode;
-# obd_uid o_uid;
-# obd_gid o_gid;
-# obd_flag o_flags;
-# obd_flag o_obdflags;
-# obd_count o_nlink;
-# obd_count o_generation;
-# obd_flag o_valid; /* hot fields in this obdo */
-# char o_inline[60];
-# char o_obdmd[60];
-# struct list_head o_list;
-# struct obd_ops *o_op;
-# };
-
-sub obdo_pack {
- my $obdo = shift;
- pack "LL LL LL LL LL LL LL L L L L L L L L L a60 a60 L L L",
- $obdo->{id}, 0,
- $obdo->{gr}, 0,
- $obdo->{atime}, 0,
- $obdo->{mtime}, 0 ,
- $obdo->{ctime}, 0,
- $obdo->{size}, 0,
- $obdo->{blocks}, 0,
- $obdo->{blksize},
- $obdo->{mode},
- $obdo->{uid},
- $obdo->{gid},
- $obdo->{flags},
- $obdo->{obdflags},
- $obdo->{nlink},
- $obdo->{generation},
- $obdo->{valid},
- $obdo->{inline},
- $obdo->{obdmd},
- 0, 0, # struct list_head
- 0; # struct obd_ops
-}
-
-sub obdo_unpack {
- my $buf = shift;
- my $offset = shift;
- my $obdo;
- ($obdo->{id},
- $obdo->{gr},
- $obdo->{atime},
- $obdo->{mtime},
- $obdo->{ctime},
- $obdo->{size},
- $obdo->{blocks},
- $obdo->{blksize},
- $obdo->{mode},
- $obdo->{uid},
- $obdo->{gid},
- $obdo->{flags},
- $obdo->{obdflags},
- $obdo->{nlink},
- $obdo->{generation},
- $obdo->{valid},
- $obdo->{inline},
- $obdo->{obdmd}) = unpack "x${offset}Lx4 Lx4 Lx4 Lx4 Lx4 Lx4 Lx4 L L L L L L L L L a60 a60", $buf;
- $obdo;
-}
-
-sub obdo_print {
-
- my $obdo = shift;
-
- printf "id: %d\ngrp: %d\natime: %s\nmtime: %s\nctime: %s\nsize: %d\nblocks: %d\nblksize: %d\nmode: %o\nuid: %d\ngid: %d\nflags: %x\nobdflags: %x\nnlink: %d\nvalid: %x\ninline: %s\nobdmd: %s\n",
- $obdo->{id},
- $obdo->{gr},
- $obdo->{atime},
- $obdo->{mtime},
- $obdo->{ctime},
- $obdo->{size},
- $obdo->{blocks},
- $obdo->{blksize},
- $obdo->{mode},
- $obdo->{uid},
- $obdo->{gid},
- $obdo->{flags},
- $obdo->{obdflags},
- $obdo->{nlink},
- $obdo->{valid},
- $obdo->{inline},
- $obdo->{obdmd};
-}
-
-
-my ($file);
-
-GetOptions("f!" => \$file, "device=s" => \$::device, ) || die "Getoptions";
-
-
-# get a console for the app
-
-my $line;
-my $command;
-my $arg;
-
-my @procsysobd_objects = ('debug', 'index', 'reset', 'trace', 'vars');
-
-my %commands =
- ('status' => {func => "Status", doc => "status: show obd device status"},
- 'procsys' => {func => "Procsys", doc => "procsys <file> <value> (set /proc/sys/obd configuration)"},
- 'shell' => {func => "Shell", doc => "shell <shell-command>: execute shell-commands"},
- 'script' => {func => "Script", doc => "script <filename>: read and execute commands from a file"},
- 'insmod' => {func => "Insmod", doc => "insmod <module>: insert kernel module"},
- 'rmmod' => {func => "Rmmod", doc => "rmmod <module>: insert kernel module"},
- 'lsmod' => {func => "Lsmod", doc => "lsmod <module>: list kernel modules"},
- 'device' => {func => "Device", doc => "device <dev>: open another OBD device"},
- 'close' => {func => "Close", doc => "close <dev>: close OBD device"},
- 'create' => {func => "Create", doc => "create [<num> [<mode> [quiet]]]: create new object(s) (files, unless mode is given)"},
- 'attach' => {func => "Attach", doc => "attach { obdext2 | obdsnap snapdev snapidx tableno | obdscsi adapter bus tid lun }: attach this minor device to the specified driver" },
- 'detach' => {func => "Detach", doc => "detach this minor device"},
- 'testext2iterator' => {func => "TestExt2Iterator", doc => "test ext2 iterator function"},
- 'snapset' => {func => "SnapSetTable", doc => "snapset <tableno> <file>: set the table (created with snaptable) as table #tableno" },
- 'snapprint' => {func => "SnapPrint", doc => "snapprint <tableno>: output the contents of table #tableno to the syslog"},
- 'snapdelete' => {func => "SnapDelete", doc => "snapdelete: delete connected snap obd objects from disk"},
- 'snaprestore' => {func => "SnapRestore", doc => "snaprestore : restore connected old snap objects to be current"},
- 'snaptable' => {func => "SnapShotTable", doc => "snaptable: build a snapshot table (interactive)"},
- 'copy' => {func => "Copy", doc => "copy <srcid> <tgtid>: copy objects"},
- 'migrate' => {func => "Migrate", doc => "migrate <srcid> <tgtid>: migrate data from one object to another"},
-# FIXME: obsolete?
- 'partition' => {func => "Partition", doc => "partition <type> <adapter> <bus> <tid> <lun> <partition> <size>: create a partition"},
-# FIXME: obsolete?
- 'format' => {func => "Format", doc => "format <type> <adapter> <bus> <tid> <lun> <size>: format a partition"},
- 'setup' => {func => "Setup", doc => "setup [type]: link this OBD device to the underlying device (default type obdext2)"},
- 'connect' => {func => "Connect", doc => "connect: allocates client ID for this session"},
- 'disconnect' => {func => "Disconnect", doc => "disconnect [id]: frees client resources"},
- 'sync' => {func => "Sync", doc => "sync: flushes buffers to disk"},
- 'destroy' => {func => "Destroy", doc => "destroy <id>: destroys an object"},
- 'cleanup' => {func => "Cleanup", doc => "cleanup the minor obd device"},
-# FIXME: obsolete?
- 'dec_use_count' => {func => "Decusecount", doc => "decreases the module use count so that the module can be removed following an oops"},
- 'read' => {func => "Read", doc => "read <id> <count> [offset]: read data from object"},
-# FIXME: obsolete?
- 'fsread' => {func => "Read2", doc => "read <id> <count> [offset]: read data from object"},
- 'write' => {func => "Write", doc => "write <id> <offset> <text>: write data to object"},
- 'punch' => {func => "Punch", doc => "punch <id> <start> <count>: punch a hole in object"},
- 'setattr' => {func => "Setattr", doc => "setattr <id> [mode [uid [gid [size [atime [mtime [ctime]]]]]]]: sets object attributes"},
- 'getattr' => {func => "Getattr", doc => "getattr <id>: displays object attributes"},
- 'preallocate' => {func => "Preallocate", doc => "preallocate [num]: requests preallocation of num objects."},
- 'statfs' => {func => "Statfs", doc => "statfs: filesystem status information"},
- 'help' => {func => \&Help, doc => "help: this message"},
- 'quit' => {func => \&Quit, doc => "see \"exit\""},
- 'exit' => {func => \&Quit, doc => "see \"quit\""}
- );
-
-#
-# setup completion function
-#
-my @jcm_cmd_list = keys %commands;
-
-my $term, $attribs;
-
-
-# Get going....
-
-Device($::device);
-
-sub readl {
- if ( $file ) {
- my $str = <STDIN>;
- chop($str);
- return $str;
- } else {
- return $term->readline(@_);
- }
-}
-
-
-
-if ( $file ) {
- while ( <STDIN> ) {
- print $_;
- my $rc = execute_line($_);
- if ($rc != 0) { last; }
- }
- exit 0;
-} else {
- $term = new Term::ReadLine 'obdcontrol ';
- $attribs = $term->Attribs;
- $attribs->{attempted_completion_function} = \&completeme;
- $term->ornaments('md,me,,'); # bold face prompt
-
- # make sure stdout is not buffered
- STDOUT->autoflush(1);
-
-
- # Get on with the show
- process_line();
-}
-
-#------------------------------------------------------------------------------
-sub completeme {
- my ($text, $line, $start, $end) = @_;
- if (substr($line, 0, $start) =~ /^\s*$/) {
- if ($] < 5.6) { # PErl version is less than 5.6.0
- return (exists $commands{$text}) ? $text : 0;
-#Above line doesn't perform command completion, but
-#perl5.005 Term-ReadLine lacks support for completion matching
-#and perl5.6.0 requires glibc2.2.2 that won't run under Redhat6.2......sigh.
- }
- else {
- $attribs->{completion_word} = \@jcm_cmd_list;
- return $term->completion_matches($text,
- $attribs->{'list_completion_function'});
- }
- }
-}
-
-sub find_command {
- my $given = shift;
- my $name;
- my @completions = completeme($given, $given, 0, length($given));
- if ($#completions == 0) {
- $name = shift @completions;
- }
-
- return $name;
-}
-
-# start making requests
-sub process_line {
- foo:
- $line = $term->readline("obdcontrol > ");
- execute_line($line);
- goto foo;
-}
-
-sub execute_line {
- my $line = shift;
-
- my @cmdline = split(' ', $line);
- my $word = shift @cmdline;
-
- return 0 unless ($word);
-
- my $cmd;
- if ( $file ) {
- $cmd = $word;
- } else {
- $cmd = find_command($word);
- }
- unless ($cmd) {
- printf STDERR "$word: No such command, or not unique.\n";
- return (-1);
- }
-
- # Call the function.
- return (&{$commands{$cmd}->{func}}(@cmdline));
-}
-
-my %opendevfds = ();
-
-# select the OBD device we talk to
-sub Device {
- my $device = shift;
-
- if ( ! $device && ! $::device ) { # first time ever
- $device = '/dev/obd0';
- }
-
- if (($device) && ($::device ne $device)) {
- local *NEW_OBD;
- my $newfd;
-
- if ($::client_id) {
- print "Disconnecting active session ($::client_id)...";
- Disconnect($::client_id);
- }
-
- if ($opendevfds{$device}) {
- $::dev_obd = $opendevfds{$device};
- }
- else {
- # Open the device, as we need an FD for the ioctl
- if (!sysopen(NEW_OBD, $device, 0)) {
- print "Cannot open $device. Did you insert the obdclass module ?\n";
- return -1;
- }
- print "Opened device $device\n";
- $opendevfds{$device} = *NEW_OBD;
- $::dev_obd = *NEW_OBD;
- }
- $::device = $device;
- }
- print "Current device is $::device\n";
- return 0;
-}
-
-sub Close {
- my $device = shift;
- my $fd2close;
-
- if ( ! $device && ! $::device ) { # first time ever
- print "Nothing to close\n";
- return -1;
- }
-
- if ( ! $device ) {
- $device = $::device;
- }
-
- if ($::device eq $device) {
- if ($::client_id) {
- print "Disconnecting active session ($::client_id)...";
- Disconnect($::client_id);
- }
- }
-
- $fd2close = $opendevfds{$device};
- if ($fd2close) { # XXXX something wrong in this if statement
- close ($fd2close);
- $opendevfds{$device} = undef;
- print "Closed device $device\n";
- }
- else {
- print "Device $device was not open\n";
- return -1;
- }
-
- if ($::device eq $device) {
- $::dev_obd = undef;
- $::device = undef;
- }
- print "No current device. You just closed the current device ($device).\n";
- return 0;
-}
-
-sub Script {
- my $cmdfilename = shift;
- my $rc = 0;
- if ( ! $cmdfilename ) {
- print "please specify a command file name\n";
- return -1;
- }
- if (! open(CMDF, $cmdfilename)) {
- print "Cannot open $cmdfilename: $!\n";
- return -1;
- }
- while (<CMDF>) {
- if (/^#/) {
- next;
- }
- print "execute> $_";
- $rc = execute_line($_);
- if ($rc != 0) {
- print "Something went wrong .......command exit status: $rc\n";
- last;
- }
- }
- close(CMDF);
- return $rc;
-}
-
-sub Shell {
- my $user_shell=$ENV{'SHELL'};
- print "% $user_shell -c '@_'\n";
- if ( ! @_ ) {
- print "please specify a shell command\n";
- return;
- }
- system("$user_shell -c '@_'");
- return ($? >> 8);
-}
-
-sub Status {
- my $oldfh = select(STDOUT);
- $| = 1;
-
- system('cat /proc/lustre/obd/*/status');
- my $rc = ($? >> 8);
-
- select($oldfh);
- $| = 0;
-
- return $rc;
-}
-
-sub Procsys {
- my $set_sysobd = shift;
- my $value = shift;
-
- foreach $i (0 .. $#procsysobd_objects) {
- my $sysobd = $procsysobd_objects[$i];
-
- if (defined $set_sysobd) {
- if ($sysobd ne $set_sysobd) { next; }
-
- if (defined $value) { # set this one
- system("echo \"$value\" > /proc/sys/obd/$sysobd");
- }
- system("echo \"/proc/sys/obd/$sysobd:\"; cat /proc/sys/obd/$sysobd");
- last;
- }
- else {
- system("echo \"/proc/sys/obd/$sysobd:\"; cat /proc/sys/obd/$sysobd");
- }
- }
- return ($? >> 8);
-}
-
-sub Insmod {
- my $module = shift;
- system("insmod $module");
- return ($? >> 8);
-}
-
-sub Rmmod {
- my $module = shift;
- system("rmmod $module");
- return ($? >> 8);
-}
-
-sub Lsmod {
- my $module = shift;
- system("lsmod $module");
- return ($? >> 8);
-}
-
-sub Attach {
- my $err = 0;
- my $type = shift;
- my $data;
- my $datalen = 0;
-
- if ( ! $type ) {
- print "error: missing type\n";
-usage:
- print "usage: attach {obdext2 | obdsnap | obdscsi | obdtrace }\n";
- return -1;
- }
-
- if ($type eq "obdscsi" ) {
- my $adapter = shift;
- my $bus = shift;
- my $tid = shift;
- my $lun = shift;
-
- $data = pack("iiii", $adapter, $bus, $tid, $lun);
- $datalen = 4 * 4;
- } elsif ($type eq "obdsnap" ) {
- my $snapdev = shift;
- my $snapidx = shift;
- my $tableno = shift;
-
- $data = pack("iii", $snapdev, $snapidx, $tableno);
- $datalen = 3 * 4;
- } elsif ($type eq "obdext2") {
- $data = pack("i", 4711); # bogus data
- $datalen = 4;
- } elsif ($type eq "obdtrace") {
- $data = pack("i", 4711); # bogus data
- $datalen = 4;
- } else {
- print "error: unknown attach type $type\n";
- goto usage;
- }
-
- my $len = length($type);
- my $cl = length($data);
-
- print "type $type (len $len), datalen $datalen ($cl)\n";
- my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
-
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- my $rc = ioctl($::dev_obd, &OBD_IOC_ATTACH, $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-
-sub Detach {
- my $err = 0;
- my $data = "";
-
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
-
- my $rc = ioctl($::dev_obd, &OBD_IOC_DETACH, $data);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-
-sub TestExt2Iterator {
- if (!defined($::client_id)) {
- print "You must first ``connect''.\n";
- return;
- }
-
- my $err = 0;
- my $type = "obdext2";
-
- $data = pack("i", 4711); # bogus data
- $datalen = 4;
-
- my $len = length($type);
- my $cl = length($data);
- print "type $type (len $len), datalen $datalen ($cl)\n";
- my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
-
- my $rc = ioctl($::dev_obd, &OBD_EXT2_RUNIT, $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-
-sub SnapDelete {
- if (!defined($::client_id)) {
- print "You must first ``connect''.\n";
- return -1;
- }
-
- my $err = 0;
- my $type = "obdsnap";
-
- $data = pack("i", 4711); # bogus data
- $datalen = 4;
-
- my $len = length($type);
- my $cl = length($data);
- print "type $type (len $len), datalen $datalen ($cl)\n";
- my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
-
- # XXX We need to fix this up so that after the objects in this snapshot
- # are deleted, the snapshot itself is also removed from the table.
-
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
-
- my $rc = ioctl($::dev_obd, &OBD_SNAP_DELETE, $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-
-# this routine does the whole job
-sub SnapRestore {
- my $restoreto = shift;
- my $snaptable = shift;
- my $tableno = shift;
- my $restoretime;
-
- # don't do anything until connected
- if (!defined($::client_id)) {
- print "You must first ``connect''.\n";
- return -1;
- }
-
- if ( ! $snaptable || ! defined $restoreto ) {
- print "Usage: snaprestore \"restore to slot\" \"snaptable\" \"tableno\"\n";
- return -1;
- }
-
- if ( ! -f $snaptable ) {
- print "Table $snaptable doesn't exist\n";
- return -1;
- }
-
- my $table = ReadSnapShotTable($snaptable);
- $restoretime = FindSnapInTable($table, $restoreto);
- if ( ! defined $table->{0} || ! defined $restoretime ) {
- PrintSnapShotTable($table);
- print "No current or $restoreto slot in this table\n";
- return -1;
- }
-
- my $currentindex = $table->{0};
- if ( $table->{$restoretime} == $currentindex ) {
- print "You should not restore to the current snapshot\n";
- return -1;
- }
-
- # swap the entries for 0 and $restoreto
- my $tmp = $table->{$restoretime};
- $table->{$restoretime} = $table->{0};
- $table->{0} = $tmp;
- # PrintSnapShotTable($table);
-
- # write it back
- WriteSnapShotTable($snaptable, $table);
-
- # set it in the kernel
- SnapSetTable($tableno, $snaptable);
-
- # ready for the ioctl
- my $err = 0;
- my $type = "obdsnap";
- $data = pack("i", $currentindex); # slot of previous current snapshot
- $datalen = 4;
-
- my $len = length($type);
- my $cl = length($data);
- my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
-
- my $rc = ioctl($::dev_obd, &OBD_SNAP_RESTORE, $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Snaprestore finished (success)\n";
- delete $table->{$restoretime} if defined $restoretime;
- # write it back
- WriteSnapShotTable($snaptable, $table);
-
- # set it in the kernel
- SnapSetTable($tableno, $snaptable);
- # PrintSnapShotTable($table);
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub FindSnapInTable {
- my $table = shift;
- my $snapno =shift;
-
- foreach my $restoretime ( keys %{$table} ) {
- if ( $table->{$restoretime} == $snapno) {
- print "Found key $restoretime for snapno $snapno\n";
- return $restoretime;
- }
- }
- undef;
-}
-
-
-sub SnapPrint {
- my $err = 0;
- my $type = "obdsnap";
- my $snaptableno = shift;
-
- $data = pack("i", $snaptableno);
- $datalen = 4;
-
- my $len = length($type);
- my $cl = length($data);
- print "type $type (len $len), datalen $datalen ($cl)\n";
- my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
-
- my $rc = ioctl($::dev_obd, &OBD_SNAP_PRINTTABLE, $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub SnapSetTable {
- my $err = 0;
- my $type = "obdsnap";
- my $snaptableno = shift;
- my $file = shift;
- my $snapcount;
- my $table = {};
- my $data;
- my $datalen = 0;
-
- if ( ! -f $file ) {
- print "No such file $file\n";
- return -1;
- }
-
- $table = ReadSnapShotTable($file);
-
- $snapcount = keys %{$table};
- print "Snapcount $snapcount\n";
-
- if ( ! defined $table->{0} ) {
- print "No current snapshot in table! First make one\n";
- return -1;
- }
- $data = pack("ii", $snaptableno, $snapcount);
- $datalen = 2 * 4;
- foreach my $time (sort keys %{$table}) {
- # XXX we should change to pack LL instead of I for times
- $data .= pack("Ii", $time, $table->{$time});
- $datalen += 8;
- }
-
- my $len = length($type);
- my $cl = length($data);
- print "type $type (len $len), datalen $datalen ($cl)\n";
- my $packed = pack("Lipip", $::client_id, length($type), $type, $datalen, $data);
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
-
- my $rc = ioctl($::dev_obd, &OBD_SNAP_SETTABLE, $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-
-sub SnapShotTable {
-
- my $file = &readl("enter file name: ");
- if ( ! -f $file ) {
- `touch $file`;
- }
- my $table = ReadSnapShotTable($file);
-
- again:
- PrintSnapShotTable($table);
- my $action = &readl("Add, Delete or Quit [adq]: ");
- goto done if ($action =~ "^q.*" );
- goto add if ($action =~ "^a.*");
- goto del if ($action =~ "^d.*");
- goto again;
-
- add:
- my $idx = &readl("enter index where you want this snapshot: ");
- my $time = &readl("enter time or 'now' or 'current': ");
- my $oldtime = SnapFindTimeFromIdx($idx, $table);
- if (defined $oldtime) {
- print "This already exists, first clean up\n";
- goto again;
- }
-
- if ( $time eq 'now' ) {
- $time = time;
- } elsif ( $time eq 'current' ) {
- $time = 0;
- }
- $table->{$time} = $idx;
- goto again;
-
- del:
- $didx = &readl("Enter index to delete: ");
- my $deltime = SnapFindTimeFromIdx($didx, $table);
- delete $table->{$deltime} if defined $deltime;
- goto again;
-
- done:
- my $ok = &readl("OK with new table? [Yn]: ");
- unless ( $ok eq "n" ) {
- WriteSnapShotTable($file, $table);
- }
- return 0;
-}
-
-sub SnapFindTimeFromIdx {
- my $idx = shift;
- my $table = shift;
-
- foreach my $time ( keys %{$table} ) {
- if ( $table->{$time} == $idx ) {
- return $time;
- }
- }
- undef;
-}
-
-sub PrintSnapShotTable {
- my $table = shift;
- my $time;
-
- foreach $time ( sort keys %{$table} ) {
- my $stime = localtime($time);
- if ( ! $time ) {
- $stime = "current";
- }
- printf "Time: %s -- Index %d\n", $stime, $table->{$time};
- }
-}
-
-sub ReadSnapShotTable {
-
- my $file = shift;
- my $table = {};
-
- open FH, "<$file";
- while ( <FH> ) {
- my ($time, $index) = split ;
- $table->{$time} = $index;
- }
- close FH;
-
- PrintSnapShotTable($table);
-
- return $table;
-}
-
-sub WriteSnapShotTable {
- my $file = shift;
- my $table = shift;
-
- open FH, ">$file";
- foreach my $time ( sort keys %{$table} ) {
- print FH "$time $table->{$time}\n";
- }
- close FH;
-}
-
-sub Copy {
- my $err = 0;
- my $src_obdo;
- my $dst_obdo;
-
- # Note: _copy IOCTL takes parameters as dst, src.
- # Copy function takes parameters as src, dst.
- $src_obdo->{id} = shift;
- $dst_obdo->{id} = shift;
- $src_obdo->{valid} = &OBD_MD_FLALL;
-
- # XXX need to fix copy so we can have 2 client IDs here
- my $packed = pack("L", $::client_id) . obdo_pack($dst_obdo) . pack("L", $::client_id) . obdo_pack($src_obdo);
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
-
- my $rc = ioctl($::dev_obd, &OBD_IOC_COPY, $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Migrate {
- my $err = 0;
-
- # Note: _migr IOCTL takes parameters as dst, src.
- # Migrate function takes parameters as src, dst.
- $src_obdo->{id} = shift;
- $dst_obdo->{id} = shift;
- $src_obdo->{valid} = &OBD_MD_FLALL;
-
- # We pack a dummy connection ID here
- my $packed = pack("L", $::client_id) . obdo_pack($dst_obdo) . pack("L", $::client_id) . obdo_pack($src_obdo);
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
-
- my $rc = ioctl($::dev_obd, &OBD_IOC_MIGR, $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-
-sub Format {
- my $err = 0;
- my $size = shift;
- my $data = pack("i", $size);
- my $datalen = 4;
-
- my $packed = pack("ip", $datalen, $data);
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- my $rc = ioctl($::dev_obd, &OBD_IOC_FORMATOBD, $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Partition {
- my $err = 0;
- my $partno = shift;
- my $size = shift;
- my $data = pack("ii", $partno, $size);
- my $datalen = 2 * 4;
-
- my $packed = pack("ip", $datalen, $data);
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- my $rc = ioctl($::dev_obd, &OBD_IOC_PARTITION, $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Setup {
- my $err = 0;
- my $arg = shift;
- my $data;
- my $datalen = 0;
-
- # XXX we need a getinfo ioctl to validate parameters
- # by type here
-
- if ($arg && !defined($::st = stat($arg))) {
- print "$arg is not a valid device\n";
- return -1;
- }
-
- printf "setting up %s, device %x\n", $arg, $::st->rdev();
- if ( $arg ) {
- $data = $arg;
- $datalen = length($arg)+1; # need null character also
- }
-
- my $packed = pack("iip", $datalen, $::st->rdev(), $data);
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- my $rc = ioctl($::dev_obd, &OBD_IOC_SETUP, $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Cleanup {
- my $err = "0";
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- my $rc = ioctl($::dev_obd, &OBD_IOC_CLEANUP, $err);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Finished (success)\n";
- $::client_id = 0;
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-
-sub Connect {
- my $rc;
-
- my $packed = "";
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- $rc = ioctl($::dev_obd, &OBD_IOC_CONNECT, $packed);
- $id = unpack("I", $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- $::client_id = $id;
- print "Client ID : $id\n";
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Disconnect {
- my $id = shift;
-
- if (!defined($id)) {
- $id = $::client_id;
- }
-
- if (!defined($id)) {
- print "syntax: disconnect [client ID]\n";
- print "When client ID is not given, the last valid client ID to be returned by a\n";
- print "connect command this session is used; there is no such ID.\n";
- return -1;
- }
-
- my $packed = pack("L", $id);
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- my $rc = ioctl($::dev_obd, &OBD_IOC_DISCONNECT, $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- $::client_id = undef;
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Create {
- if (!defined($::client_id)) {
- print "You must first ``connect''.\n";
- return -1;
- }
-
- my $num = shift;
- my $mode = shift;
- my $quiet = shift;
- my $rc;
- my $prealloc = 0;
-
- if (!defined($num)) {
- $num = 1;
- }
-
- if (!defined($mode)) {
- $mode = 0100644; # create a file (rw-r--r--) if not specified
- }
-
- if (scalar($num) < 1 || defined($quiet) && $quiet ne "quiet") {
- print "usage: create [<number of objects> [<mode> [quiet]]]\n";
- return -1;
- }
-
- my $i;
- my $id = 0; # can't currently request IDs
-
- print "Creating " . scalar($num) . " object";
- if (scalar($num) > 1) {
- print "s";
- }
- print "\n";
-
- for ($i = 0; $i < scalar($num); $i++) {
- my $obdo;
- $obdo->{id} = $id;
- $obdo->{mode} = scalar($mode);
- $obdo->{valid} = &OBD_MD_FLMODE;
-
- my $packed = pack("I", $::client_id) . obdo_pack($obdo);
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- $rc = ioctl($::dev_obd, &OBD_IOC_CREATE, $packed);
- if ($rc ne "0 but true") {
- last;
- } elsif (!defined($quiet)) {
- $obdo = obdo_unpack($packed, 4);
- print "Created object #$obdo->{id}.\n";
- }
- }
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Sync {
- my $err = "0";
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- my $rc = ioctl($::dev_obd, &OBD_IOC_SYNC, $err);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Destroy {
- if (!defined($::client_id)) {
- print "You must first ``connect''.\n";
- return -1;
- }
-
- my $id = shift;
-
- if (!defined($id) || scalar($id) < 1) {
- print "usage: destroy <object number>\n";
- return -1;
- }
-
- print "Destroying object $id...\n";
- my $packed = pack("IL", $::client_id, $id);
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- my $rc = ioctl($::dev_obd, &OBD_IOC_DESTROY, $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Getattr {
- if (!defined($::client_id)) {
- print "You must first ``connect''.\n";
- return -1;
- }
-
- my $id = shift;
-
- if (!defined($id) || scalar($id) < 1) {
- print "invalid arguments; type \"help getattr\" for a synopsis\n";
- return -1;
- }
-
- # see Setattr
- my $obdo;
- $obdo->{id} = $id;
- $obdo->{valid} = &OBD_MD_FLALL;
- my $packed = pack("L", $::client_id) . obdo_pack($obdo);
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- my $rc = ioctl($::dev_obd, &OBD_IOC_GETATTR, $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- $obdo = obdo_unpack($packed, 4);
- obdo_print($obdo);
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Setattr {
- if (!defined($::client_id)) {
- print "You must first ``connect''.\n";
- return -1;
- }
-
- my $id = shift;
-
- if (!defined($id) || scalar($id) < 1) {
- print "invalid arguments; type \"help setattr\" for a synopsis\n";
- return -1;
- }
-
- # XXX we do not currently set all of the fields in the obdo
- my $obdo;
- $obdo->{id} = $id;
- $obdo->{mode} = oct(shift);
- $obdo->{uid} = shift;
- $obdo->{gid} = shift;
- $obdo->{size} = shift;
- $obdo->{atime} = shift;
- $obdo->{mtime} = shift;
- $obdo->{ctime} = shift;
- $obdo->{valid} = 0;
-
- if (defined($obdo->{atime})) {
- $obdo->{valid} |= &OBD_MD_FLATIME;
- }
- if (defined($obdo->{mtime})) {
- $obdo->{valid} |= &OBD_MD_FLMTIME;
- }
- if (defined($obdo->{ctime})) {
- $obdo->{valid} |= &OBD_MD_FLCTIME;
- }
- if (defined($obdo->{size})) {
- $obdo->{valid} |= &OBD_MD_FLSIZE;
- }
- if (defined($obdo->{mode})) {
- $obdo->{valid} |= &OBD_MD_FLMODE;
- }
- if (defined($obdo->{uid})) {
- $obdo->{valid} |= &OBD_MD_FLUID;
- }
- if (defined($obdo->{gid})) {
- $obdo->{valid} |= &OBD_MD_FLGID;
- }
-
- printf "valid is %x, mode is %o\n", $obdo->{valid}, $obdo->{mode};
- my $packed = pack("L", $::client_id) . obdo_pack($obdo);
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- my $rc = ioctl($::dev_obd, &OBD_IOC_SETATTR, $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Read {
- if (!defined($::client_id)) {
- print "You must first ``connect''.\n";
- return -1;
- }
-
- my $id = shift;
- my $count = shift;
- my $offset = shift;
-
- if (!defined($id) || scalar($id) < 1 || !defined($count) ||
- $count < 1 || (defined($offset) && $offset < 0)) {
- print "invalid arguments; type \"help read\" for a synopsis\n";
- return -1;
- }
-
- if (!defined($offset)) {
- $offset = 0;
- }
-
- print("Reading $count bytes starting at byte $offset from object " .
- "$id...\n");
-
- # "allocate" a large enough buffer
- my $buf = sprintf("%${count}s", " ");
- die "suck" if (length($buf) != $count);
-
- my $obdo;
- $obdo->{id} = $id;
-
- # the perl we're using doesn't support pack type Q, and offset is 64 bits
- my $packed = pack("L", $::client_id) . obdo_pack($obdo) .
- pack("p LL LL", $buf, $count, $offset);
-
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- my $rc = ioctl($::dev_obd, &OBD_IOC_READ, $packed);
-
- $retval = unpack("l", $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- if ($retval >= 0) {
- print substr($buf, 0, $retval);
- print "\nRead $retval of an attempted $count bytes.\n";
- print "Finished (success)\n";
- return 0;
- } else {
- print "Finished (error $retval)\n";
- return $retval;
- }
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Read2 {
- if (!defined($::client_id)) {
- print "You must first ``connect''.\n";
- return -1;
- }
-
- my $id = shift;
- my $count = shift;
- my $offset = shift;
-
- if (!defined($id) || scalar($id) < 1 || !defined($count) ||
- $count < 1 || (defined($offset) && $offset < 0)) {
- print "invalid arguments; type \"help read\" for a synopsis\n";
- return -1;
- }
-
- if (!defined($offset)) {
- $offset = 0;
- }
-
- print("Reading $count bytes starting at byte $offset from object " .
- "$id...\n");
-
- # "allocate" a large enough buffer
- my $buf = sprintf("%${count}s", " ");
- die "suck" if (length($buf) != $count);
-
- my $obdo;
- $obdo->{id} = $id;
-
- # the perl we're using doesn't support pack type Q, and offset is 64 bits
- my $packed = pack("L", $::client_id) . obdo_pack($obdo) .
- pack("p LL LL", $buf, $count, $offset);
-
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- my $rc = ioctl($::dev_obd, &OBD_IOC_READ2, $packed);
-
- $retval = unpack("l", $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- if ($retval >= 0) {
- print substr($buf, 0, $retval);
- print "\nRead $retval of an attempted $count bytes.\n";
- print "Finished (success)\n";
- return 0;
- } else {
- print "Finished (error $retval)\n";
- return $retval;
- }
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Write {
- if (!defined($::client_id)) {
- print "You must first ``connect''.\n";
- return -1;
- }
-
- my $id = shift;
- my $offset = shift;
- my $text = join(' ', @_);
- my $count = length($text);
-
- if (!defined($id) || scalar($id) < 1 || !defined($offset) ||
- scalar($offset) < 0) {
- print "invalid arguments; type \"help write\" for a synopsis\n";
- return -1;
- }
-
- if (!defined($text)) {
- $text = "";
- $count = 0;
- }
-
- print("Writing $count bytes starting at byte $offset to object $id...\n");
-
- my $obdo;
- $obdo->{id} = $id;
-
- # the perl we're using doesn't support pack type Q
- my $packed = pack("L", $::client_id) . obdo_pack($obdo) .
- pack("p LL LL", $text, $count, $offset);
-
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- my $rc = ioctl($::dev_obd, &OBD_IOC_WRITE, $packed);
-
- $retval = unpack("l", $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- if ($retval >= 0) {
- print "\nWrote $retval of an attempted $count bytes.\n";
- print "Finished (success)\n";
- return 0;
- } else {
- print "Finished (error $retval)\n";
- return $retval;
- }
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Punch {
- if (!defined($::client_id)) {
- print "You must first ``connect''.\n";
- return -1;
- }
-
- my $id = shift;
- my $start = shift;
- my $count = shift;
-
- if (!defined($id) || scalar($id) < 1 || !defined($start) ||
- scalar($start) < 0 || !defined($count) || scalar($count) < 0) {
- print "invalid arguments; type \"help punch\" for a synopsis\n";
- return -1;
- }
-
- print("Punching $count bytes starting at byte $start from object $id...\n");
-
- my $obdo;
- $obdo->{id} = $id;
-
- # the perl we're using doesn't support pack type Q
- my $packed = pack("L", $::client_id) . obdo_pack($obdo) .
- pack("p LL LL", $buf, $start, $count);
-
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- my $rc = ioctl($::dev_obd, &OBD_IOC_PUNCH, $packed);
-
- $retval = unpack("l", $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- } elsif ($rc eq "0 but true") {
- if ($retval >= 0) {
- print "\nPunched $retval of an attempted $count bytes.\n";
- print "Finished (success)\n";
- return 0;
- } else {
- print "Finished (error $retval)\n";
- return $retval;
- }
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Preallocate {
- my $num = shift;
-
- if (!defined($::client_id)) {
- print "You must first ``connect''.\n";
- return -1;
- }
-
- if (!defined($num) || scalar($num) < 1 || scalar($num) > 32) {
- $num = 32;
- }
-
- print "Preallocating $num objects...\n";
- # client id, alloc, id[32]
- my $packed = pack("LLx128", $::client_id, $num);
-
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- my $rc = ioctl($::dev_obd, &OBD_IOC_PREALLOCATE, $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- my $alloc = unpack("x4L", $packed);
- my @ids = unpack("x8L32", $packed);
- my $i;
-
- print "Got $alloc objects: ";
- foreach $i (@ids) {
- print $i . " ";
- }
- print "\nFinished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Decusecount {
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- my $rc = ioctl($::dev_obd, &OBD_IOC_DEC_USE_COUNT, 0);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Statfs {
- if (!defined($::client_id)) {
- print "You must first ``connect''.\n";
- return -1;
- }
-
- # struct statfs {
- # long f_type;
- # long f_bsize;
- # long f_blocks;
- # long f_bfree;
- # long f_bavail;
- # long f_files;
- # long f_ffree;
- # __kernel_fsid_t f_fsid; (64 bits)
- # long f_namelen;
- # long f_spare[6];
- # };
-
- my $packed = pack("LLLLLLLIILL6", $::client_id, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0);
-
- if (! defined $::dev_obd) {
- print "No current device.\n";
- return -1;
- }
- my $rc = ioctl($::dev_obd, &OBD_IOC_STATFS, $packed);
-
- if (!defined $rc) {
- print STDERR "ioctl failed: $!\n";
- return -1;
- } elsif ($rc eq "0 but true") {
- # skip both the conn_id and the fs_type in the buffer
- my ($bsize, $blocks, $bfree, $bavail, $files, $ffree) =
- unpack("x4x4LLLLLL", $packed);
- print("$bsize byte blocks: $blocks, " . ($blocks - $bfree) . " used, " .
- "$bfree free ($bavail available).\n");
- print "$files files, " . ($files - $ffree) . " used, $ffree free.\n";
- print "Finished (success)\n";
- return 0;
- } else {
- print "ioctl returned error code $rc.\n";
- return -1;
- }
-}
-
-sub Help {
- my $cmd = shift;
-
- if ( !$cmd || !$commands{$cmd} ) {
- print "Comands: ", join( ' ', @jcm_cmd_list), "\n";
- } else {
- print "Usage: " . $commands{$cmd}->{doc} . "\n";
- }
- return 0;
-}
-
-sub Quit {
- if ($::client_id) {
- print "Disconnecting active session ($::client_id)...";
- Disconnect($::client_id);
- }
- exit;
-}
+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2002 Cluster File Systems, Inc.
- * Author: Peter J. Braam <braam@clusterfs.com>
- * Author: Phil Schwan <phil@clusterfs.com>
- *
- * This file is part of Lustre, http://www.lustre.org.
- *
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#include <stdlib.h>
-#include <sys/ioctl.h>
-#include <fcntl.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <stdio.h>
-#define printk printf
-#include <linux/lustre_lib.h>
-#include <linux/lustre_idl.h>
-#include <unistd.h>
-#include <sys/un.h>
-#include <sys/time.h>
-#include <netinet/in.h>
-#include <errno.h>
-#include <string.h>
-#include <linux/module.h>
-
-#define __KERNEL__
-#include <linux/list.h>
-#undef __KERNEL__
-
-#include "parser.h"
-#include <stdio.h>
-
-int fd = -1;
-int connid = -1;
-char rawbuf[8192];
-char *buf = rawbuf;
-int max = 8192;
-
-#define IOCINIT(data) do { memset(&data, 0, sizeof(data)); data.ioc_version = OBD_IOCTL_VERSION; data.ioc_conn1 = connid; data.ioc_len = sizeof(data); if (fd < 0) { printf("No device open, use device\n"); return 1;}} while (0)
-
-/*
- pack "LL LL LL LL LL LL LL L L L L L L L L L a60 a60 L L L",
- $obdo->{id}, 0,
- $obdo->{gr}, 0,
- $obdo->{atime}, 0,
- $obdo->{mtime}, 0 ,
- $obdo->{ctime}, 0,
- $obdo->{size}, 0,
- $obdo->{blocks}, 0,
- $obdo->{blksize},
- $obdo->{mode},
- $obdo->{uid},
- $obdo->{gid},
- $obdo->{flags},
- $obdo->{obdflags},
- $obdo->{nlink},
- $obdo->{generation},
- $obdo->{valid},
- $obdo->{inline},
- $obdo->{obdmd},
- 0, 0, # struct list_head
- 0; # struct obd_ops
-}
-
-*/
-
-char * obdo_print(struct obdo *obd)
-{
- char buf[1024];
-
- sprintf(buf, "id: %Ld\ngrp: %Ld\natime: %Ld\nmtime: %Ld\nctime: %Ld\nsize: %Ld\nblocks: %Ld\nblksize: %d\nmode: %o\nuid: %d\ngid: %d\nflags: %x\nobdflags: %x\nnlink: %d,\nvalid %x\n",
- obd->o_id,
- obd->o_gr,
- obd->o_atime,
- obd->o_mtime,
- obd->o_ctime,
- obd->o_size,
- obd->o_blocks,
- obd->o_blksize,
- obd->o_mode,
- obd->o_uid,
- obd->o_gid,
- obd->o_flags,
- obd->o_obdflags,
- obd->o_nlink,
- obd->o_valid);
- return strdup(buf);
-}
-
-static int jt_device(int argc, char **argv)
-{
- struct obd_ioctl_data data;
- int rc;
-
- memset(&data, 0, sizeof(data));
- if ( argc != 2 ) {
- fprintf(stderr, "Usage: %s devno\n", argv[0]);
- return 1;
- }
-
- data.ioc_dev = atoi(argv[1]);
-
- if (obd_ioctl_pack(&data, &buf, max)) {
- printf("invalid ioctl\n");
- return 1;
- }
-
- if (fd == -1)
- fd = open("/dev/obd", O_RDWR);
- if (fd == -1) {
- printf("Opening /dev/obd: %s\n", strerror(errno));
- return 1;
- }
-
- rc = ioctl(fd, OBD_IOC_DEVICE , buf);
- if (rc < 0) {
- printf("Device: %x %s\n", OBD_IOC_DEVICE, strerror(errno));
- return 1;
- }
-
- return 0;
-}
-
-static int jt_connect(int argc, char **argv)
-{
- struct obd_ioctl_data data;
- int rc;
-
- IOCINIT(data);
-
- if ( argc != 1 ) {
- fprintf(stderr, "Usage: %s\n", argv[0]);
- return 1;
- }
-
- rc = ioctl(fd, OBD_IOC_CONNECT , &data);
- if (rc < 0) {
- printf("Device: %x %s\n", OBD_IOC_CONNECT, strerror(errno));
- return 1;
- }
- connid = data.ioc_conn1;
-
- return 0;
-}
-
-static int jt_disconnect(int argc, char **argv)
-{
- struct obd_ioctl_data data;
- int rc;
-
- IOCINIT(data);
-
- if ( argc != 1 ) {
- fprintf(stderr, "Usage: %s\n", argv[0]);
- return 1;
- }
-
- rc = ioctl(fd, OBD_IOC_DISCONNECT , &data);
- if (rc < 0) {
- printf("Device: %x %s\n", OBD_IOC_DISCONNECT, strerror(errno));
- return 1;
- }
- connid = -1;
-
- return 0;
-}
-
-
-static int jt_detach(int argc, char **argv)
-{
- struct obd_ioctl_data data;
- int rc;
-
- IOCINIT(data);
-
- if ( argc != 1 ) {
- fprintf(stderr, "Usage: %s\n", argv[0]);
- return 1;
- }
-
- if (obd_ioctl_pack(&data, &buf, max)) {
- printf("invalid ioctl\n");
- return 1;
- }
-
- rc = ioctl(fd, OBD_IOC_DETACH , buf);
- if (rc < 0) {
- printf("Detach: %s\n", strerror(errno));
- return 1;
- }
- return 0;
-}
-
-static int jt_cleanup(int argc, char **argv)
-{
- struct obd_ioctl_data data;
- int rc;
-
- IOCINIT(data);
-
- if ( argc != 1 ) {
- fprintf(stderr, "Usage: %s\n", argv[0]);
- return 1;
- }
-
- rc = ioctl(fd, OBD_IOC_CLEANUP , &data);
- if (rc < 0) {
- printf("Detach: %s\n", strerror(errno));
- return 1;
- }
- return 0;
-}
-
-static int jt_attach(int argc, char **argv)
-{
- struct obd_ioctl_data data;
- int rc;
-
- IOCINIT(data);
-
- if ( argc != 2 && argc != 3 ) {
- fprintf(stderr, "Usage: %s type [data]\n", argv[0]);
- return 1;
- }
-
- data.ioc_inllen1 = strlen(argv[1]) + 1;
- data.ioc_inlbuf1 = argv[1];
- if ( argc == 3 ) {
- data.ioc_inllen2 = strlen(argv[2]) + 1;
- data.ioc_inlbuf2 = argv[2];
- }
-
- printf("attach len %d addr %p type %s data %s\n", data.ioc_len, buf,
- MKSTR(data.ioc_inlbuf1), MKSTR(data.ioc_inlbuf2));
-
- if (obd_ioctl_pack(&data, &buf, max)) {
- printf("invalid ioctl\n");
- return 1;
- }
- printf("attach len %d addr %p raw %p type %s data %s and %s\n", data.ioc_len, buf, rawbuf,
- MKSTR(data.ioc_inlbuf1), MKSTR(data.ioc_inlbuf2), &buf[516]);
-
- rc = ioctl(fd, OBD_IOC_ATTACH , buf);
- if (rc < 0) {
- printf("Attach: %x %s\n", OBD_IOC_ATTACH, strerror(errno));
- return 1;
- }
- return 0;
-}
-
-static int jt_setup(int argc, char **argv)
-{
- struct obd_ioctl_data data;
- int rc;
-
- IOCINIT(data);
-
- if ( argc > 3 ) {
- fprintf(stderr, "Usage: %s [device] [fstype]\n", argv[0]);
- return 1;
- }
-
- if (argc > 1) {
- data.ioc_inllen1 = strlen(argv[1]) + 1;
- data.ioc_inlbuf1 = argv[1];
- data.ioc_dev = strtoul(argv[1], NULL, 0);
- } else {
- data.ioc_dev = -1;
- }
- if ( argc == 3 ) {
- data.ioc_inllen2 = strlen(argv[2]) + 1;
- data.ioc_inlbuf2 = argv[2];
- }
-
- printf("setup len %d addr %p device %s type %s\n", data.ioc_len, buf,
- MKSTR(data.ioc_inlbuf1), MKSTR(data.ioc_inlbuf2));
-
- if (obd_ioctl_pack(&data, &buf, max)) {
- printf("invalid ioctl\n");
- return 1;
- }
- printf("setup len %d addr %p raw %p device %s type %s\n",
- data.ioc_len, buf, rawbuf,
- MKSTR(data.ioc_inlbuf1), MKSTR(data.ioc_inlbuf2));
-
- rc = ioctl(fd, OBD_IOC_SETUP , buf);
- if (rc < 0) {
- printf("setup: %x %s\n", OBD_IOC_SETUP, strerror(errno));
- return 1;
- }
- return 0;
-}
-
-
-static int jt_create(int argc, char **argv)
-{
- struct obd_ioctl_data data;
- int num = 1;
- int silent = 0;
- int i;
- int rc;
-
- IOCINIT(data);
- if (argc > 1) {
- num = strtoul(argv[1], NULL, 0);
- } else {
- printf("usage %s num [mode] [silent]\n", argv[0]);
- }
-
- if (argc > 2) {
- data.ioc_obdo1.o_mode = strtoul(argv[2], NULL, 0);
- } else {
- data.ioc_obdo1.o_mode = 0100644;
- }
- data.ioc_obdo1.o_valid = OBD_MD_FLMODE;
-
- if (argc > 3) {
- silent = strtoul(argv[3], NULL, 0);
- }
-
- printf("Creating %d obdos\n", num);
-
- for (i = 0 ; i<num ; i++) {
- rc = ioctl(fd, OBD_IOC_CREATE , &data);
- if (rc < 0) {
- printf("Create: %x %s\n", OBD_IOC_CREATE,
- strerror(errno));
- return 1;
- }
- printf("created obdo %Ld\n", data.ioc_obdo1.o_id);
- }
- return 0;
-}
-
-static int jt_setattr(int argc, char **argv)
-{
- struct obd_ioctl_data data;
- int rc;
-
- IOCINIT(data);
- if (argc < 2) {
- printf("usage: %s id mode\n", argv[0]);
- return -1;
- }
-
- data.ioc_obdo1.o_id = strtoul(argv[1], NULL, 0);
- data.ioc_obdo1.o_mode = strtoul(argv[2], NULL, 0);
- data.ioc_obdo1.o_valid = OBD_MD_FLMODE;
-
- rc = ioctl(fd, OBD_IOC_SETATTR , &data);
- if (rc < 0) {
- printf("setattr: %x %s\n", OBD_IOC_SETATTR, strerror(errno));
- }
- return rc;
-}
-
-static int jt_destroy(int argc, char **argv)
-{
- struct obd_ioctl_data data;
- int rc;
-
- IOCINIT(data);
- if (argc < 1) {
- printf("usage %s id\n", argv[0]);
- }
-
- data.ioc_obdo1.o_id = strtoul(argv[1], NULL, 0);
-
- rc = ioctl(fd, OBD_IOC_DESTROY , &data);
- if (rc < 0) {
- printf("setattr: %x %s\n", OBD_IOC_DESTROY, strerror(errno));
- }
- return rc;
-}
-
-static int jt_getattr(int argc, char **argv)
-{
- struct obd_ioctl_data data;
- int rc;
-
- IOCINIT(data);
- if (argc != 1) {
- data.ioc_obdo1.o_id = strtoul(argv[1], NULL, 0);
- data.ioc_obdo1.o_valid = 0xffffffff;
- printf("getting attr for %Ld\n", data.ioc_obdo1.o_id);
- } else {
- printf("usage %s id\n", argv[0]);
- return 0;
- }
-
- rc = ioctl(fd, OBD_IOC_GETATTR , &data);
- if (rc) {
- printf("Error: %s\n", strerror(rc));
- } else {
- printf("attr obdo %Ld, mode %o\n", data.ioc_obdo1.o_id,
- data.ioc_obdo1.o_mode);
- }
- return 0;
-}
-
-static int jt_modules(int argc, char **argv)
-{
- char *modules[] = {"portals", "ksocknal", "obdclass", "ptlrpc",
- "obdext2", "ost", "osc", "mds", "mdc", "llight",
- NULL};
- char *paths[] = {"portals/linux/oslib", "portals/linux/socknal",
- "obd/class", "obd/rpc", "obd/ext2obd", "obd/ost",
- "obd/osc", "obd/mds", "obd/mdc", "obd/llight", NULL};
- char *path = "..";
- char *kernel = "linux";
- int i;
-
- if (argc >= 2)
- path = argv[1];
- if (argc == 3)
- kernel = argv[2];
- if (argc > 3) {
- printf("%s [path] [kernel]\n", argv[0]);
- return 0;
- }
-
- printf("symbol-file\nsymbol-file %s\nb panic\nb stop\n", kernel);
-
- for (i = 0; modules[i] != NULL; i++) {
- struct module_info info;
- int rc;
- size_t crap;
- int query_module(const char *name, int which, void *buf,
- size_t bufsize, size_t *ret);
-
- rc = query_module(modules[i], QM_INFO, &info, sizeof(info),
- &crap);
- if (rc < 0) {
- if (errno != ENOENT)
- printf("query_module(%s) failed: %s\n",
- modules[i], strerror(errno));
- } else {
- printf("add-symbol-file %s/%s/%s.o 0x%0lx\n", path,
- paths[i], modules[i],
- info.addr + sizeof(struct module));
- }
- }
-
- return 0;
-}
-
-command_t list[] = {
- {"device", jt_device, 0, "set current device (args device no)"},
- {"attach", jt_attach, 0, "name the typed of device (args: type data"},
- {"setup", jt_setup, 0, "setup device (args: blkdev, data"},
- {"detach", jt_detach, 0, "detach the current device (arg: )"},
- {"cleanup", jt_cleanup, 0, "cleanup the current device (arg: )"},
- {"create", jt_create, 0, "create [count [mode [silent]]]"},
- {"destroy", jt_destroy, 0, "destroy id"},
- {"getattr", jt_getattr, 0, "getattr id"},
- {"setattr", jt_setattr, 0, "setattr id mode"},
- {"connect", jt_connect, 0, "connect - get a connection to device"},
- {"disconnect", jt_disconnect, 0, "disconnect - break connection to device"},
- {"modules", jt_modules, 0, "provide gdb-friendly module info (arg: <path>)"},
- {"help", Parser_help, 0, "help"},
- {"exit", Parser_quit, 0, "quit"},
- {"quit", Parser_quit, 0, "quit"},
- { 0, 0, 0, NULL }
-};
-
-int main(int argc, char **argv)
-{
-
- if (argc > 1) {
- return Parser_execarg(argc - 1, &argv[1], list);
- }
-
- Parser_init("obdctl > ", list);
- Parser_commands();
-
- return 0;
-}
-
+++ /dev/null
-#include <stdio.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <string.h>
-#include <stddef.h>
-#include <sys/param.h>
-#include <assert.h>
-
-#define READLINE_LIBRARY
-#include <readline/readline.h>
-
-//extern char **completion_matches __P((char *, rl_compentry_func_t *));
-extern void using_history(void);
-extern void stifle_history(int);
-extern void add_history(char *);
-
-#include "parser.h"
-#define CMD_COMPLETE 0
-#define CMD_INCOMPLETE 1
-#define CMD_NONE 2
-#define CMD_AMBIG 3
-
-static command_t * top_level; /* Top level of commands, initialized by
- * InitParser */
-static command_t * match_tbl; /* Command completion against this table */
-static char * parser_prompt = NULL;/* Parser prompt, set by InitParser */
-static int done; /* Set to 1 if user types exit or quit */
-
-
-/* static functions */
-static char *skipwhitespace(char *s);
-static char *skiptowhitespace(char *s);
-static command_t *find_cmd(char *name, command_t cmds[], char **next);
-static int process(char *s, char **next, command_t *lookup, command_t **result, char **prev);
-static char *command_generator(const char *text, int state);
-static char **command_completion(char *text, int start, int end);
-static void print_commands(char *str, command_t *table);
-
-static char * skipwhitespace(char * s)
-{
- char * t;
- int len;
-
- len = (int)strlen(s);
- for (t = s; t <= s + len && isspace(*t); t++);
- return(t);
-}
-
-
-static char * skiptowhitespace(char * s)
-{
- char * t;
-
- for (t = s; *t && !isspace(*t); t++);
- return(t);
-}
-
-static int line2args(char *line, char **argv, int maxargs)
-{
- char *arg;
- int i = 0;
-
- arg = strtok(line, " \t");
- if ( arg ) {
- argv[i] = arg;
- i++;
- } else
- return 0;
-
- while( (arg = strtok(NULL, " \t")) && (i <= maxargs)) {
- argv[i] = arg;
- i++;
- }
- return i;
-}
-
-/* find a command -- return it if unique otherwise print alternatives */
-
-static command_t *Parser_findargcmd(char *name, command_t cmds[])
-{
- command_t *cmd;
- int i;
-
- for (i = 0; cmds[i].pc_name; i++) {
- cmd = &cmds[i];
-
- if (strlen(name) != strlen(cmd->pc_name))
- continue;
-
- if (strlen(name) == strlen(cmd->pc_name)) {
- if (strcmp(name, cmd->pc_name) == 0)
- return cmd;
- else
- continue;
- }
-
- }
- return NULL;
-}
-
-int Parser_execarg(int argc, char **argv, command_t cmds[])
-{
- command_t *cmd;
- int i;
-
- cmd = Parser_findargcmd(argv[0], cmds);
- if ( cmd ) {
- return (cmd->pc_func)(argc, argv);
- } else {
- printf("Try interactive use without arguments or use one of: ");
- for (i=0 ; cmds[i].pc_name ; i++) {
- cmd = &cmds[i];
- printf("\"%s\" ", cmd->pc_name);
- }
- printf("as argument.\n");
- }
- return -1;
-}
-
-/* returns the command_t * (NULL if not found) corresponding to a
- _partial_ match with the first token in name. It sets *next to
- point to the following token. Does not modify *name. */
-static command_t * find_cmd(char * name, command_t cmds[], char ** next)
-{
- int i, len;
-
- if (!cmds || !name )
- return NULL;
-
- /* This sets name to point to the first non-white space character,
- and next to the first whitespace after name, len to the length: do
- this with strtok*/
- name = skipwhitespace(name);
- *next = skiptowhitespace(name);
- len = *next - name;
- if (len == 0)
- return NULL;
-
- for (i = 0; cmds[i].pc_name; i++) {
- if (strncasecmp(name, cmds[i].pc_name, len) == 0) {
- *next = skipwhitespace(*next);
- return(&cmds[i]);
- }
- }
- return NULL;
-}
-
-/* Recursively process a command line string s and find the command
- corresponding to it. This can be ambiguous, full, incomplete,
- non-existent. */
-static int process(char *s, char ** next, command_t *lookup,
- command_t **result, char **prev)
-{
- *result = find_cmd(s, lookup, next);
- *prev = s;
-
- /* non existent */
- if ( ! *result )
- return CMD_NONE;
-
- /* found entry: is it ambigous, i.e. not exact command name and
- more than one command in the list matches. Note that find_cmd
- points to the first ambiguous entry */
- if ( strncasecmp(s, (*result)->pc_name, strlen((*result)->pc_name)) &&
- find_cmd(s, (*result) + 1, next))
- return CMD_AMBIG;
-
- /* found a unique command: component or full? */
- if ( (*result)->pc_func ) {
- return CMD_COMPLETE;
- } else {
- if ( *next == '\0' ) {
- return CMD_INCOMPLETE;
- } else {
- return process(*next, next, (*result)->pc_sub_cmd, result, prev);
- }
- }
-}
-
-static char * command_generator(const char * text, int state)
-{
- static int index,
- len;
- char *name;
-
- /* Do we have a match table? */
- if (!match_tbl)
- return NULL;
-
- /* If this is the first time called on this word, state is 0 */
- if (!state) {
- index = 0;
- len = (int)strlen(text);
- }
-
- /* Return the next name in the command list that paritally matches test */
- while ( (name = (match_tbl + index)->pc_name) ) {
- index++;
-
- if (strncasecmp(name, text, len) == 0) {
- return(strdup(name));
- }
- }
-
- /* No more matches */
- return NULL;
-}
-
-/* probably called by readline */
-static char **command_completion(char * text, int start, int end)
-{
- command_t * table;
- char * pos;
-
- match_tbl = top_level;
- for (table = find_cmd(rl_line_buffer, match_tbl, &pos);
- table;
- table = find_cmd(pos, match_tbl, &pos)) {
-
- if (*(pos - 1) == ' ') match_tbl = table->pc_sub_cmd;
- }
-
- return(completion_matches(text, command_generator));
-}
-
-/* take a string and execute the function or print help */
-void execute_line(char * line)
-{
- command_t *cmd, *ambig;
- char *prev;
- char *next, *tmp;
- char *argv[MAXARGS];
- int i;
-
- switch( process(line, &next, top_level, &cmd, &prev) ) {
- case CMD_AMBIG:
- fprintf(stderr, "Ambiguous command \'%s\'\nOptions: ", line);
- while( (ambig = find_cmd(prev, cmd, &tmp)) ) {
- fprintf(stderr, "%s ", ambig->pc_name);
- cmd = ambig + 1;
- }
- fprintf(stderr, "\n");
- break;
- case CMD_NONE:
- fprintf(stderr, "No such command, type help\n");
- break;
- case CMD_INCOMPLETE:
- fprintf(stderr,
- "'%s' incomplete command. Use '%s x' where x is one of:\n",
- line, line);
- fprintf(stderr, "\t");
- for (i = 0; cmd->pc_sub_cmd[i].pc_name; i++) {
- fprintf(stderr, "%s ", cmd->pc_sub_cmd[i].pc_name);
- }
- fprintf(stderr, "\n");
- break;
- case CMD_COMPLETE:
- i = line2args(line, argv, MAXARGS);
- (cmd->pc_func)(i, argv);
- break;
- }
-
- return;
-}
-
-/* this is the command execution machine */
-void Parser_commands(void)
-{
- char *line,
- *s;
-
- using_history();
- stifle_history(HISTORY);
-
- rl_attempted_completion_function =
- (CPPFunction *)command_completion;
- rl_completion_entry_function = (void *)command_generator;
-
- while(!done) {
- line = readline(parser_prompt);
-
- if (!line) break;
-
- s = skipwhitespace(line);
-
- if (*s) {
- add_history(s);
- execute_line(s);
- }
-
- free(line);
- }
-}
-
-
-/* sets the parser prompt */
-void Parser_init(char * prompt, command_t * cmds)
-{
- done = 0;
- top_level = cmds;
- if (parser_prompt) free(parser_prompt);
- parser_prompt = strdup(prompt);
-}
-
-/* frees the parser prompt */
-void Parser_exit(int argc, char *argv[])
-{
- done = 1;
- free(parser_prompt);
- parser_prompt = NULL;
-}
-
-/* convert a string to an integer */
-int Parser_int(char *s, int *val)
-{
- int ret;
-
- if (*s != '0')
- ret = sscanf(s, "%d", val);
- else if (*(s+1) != 'x')
- ret = sscanf(s, "%o", val);
- else {
- s++;
- ret = sscanf(++s, "%x", val);
- }
-
- return(ret);
-}
-
-
-
-void Parser_qhelp(int argc, char *argv[]) {
-
- printf("Available commands are:\n");
-
- print_commands(NULL, top_level);
- printf("For more help type: help command-name\n");
-}
-
-int Parser_help(int argc, char **argv)
-{
- char line[1024];
- char *next, *prev, *tmp;
- command_t *result, *ambig;
- int i;
-
- if ( argc == 1 ) {
- Parser_qhelp(argc, argv);
- return 0;
- }
-
- line[0]='\0';
- for ( i = 1 ; i < argc ; i++ ) {
- strcat(line, argv[i]);
- }
-
- switch ( process(line, &next, top_level, &result, &prev) ) {
- case CMD_COMPLETE:
- fprintf(stderr, "%s: %s\n",line, result->pc_help);
- break;
- case CMD_NONE:
- fprintf(stderr, "%s: Unknown command.\n", line);
- break;
- case CMD_INCOMPLETE:
- fprintf(stderr,
- "'%s' incomplete command. Use '%s x' where x is one of:\n",
- line, line);
- fprintf(stderr, "\t");
- for (i = 0; result->pc_sub_cmd[i].pc_name; i++) {
- fprintf(stderr, "%s ", result->pc_sub_cmd[i].pc_name);
- }
- fprintf(stderr, "\n");
- break;
- case CMD_AMBIG:
- fprintf(stderr, "Ambiguous command \'%s\'\nOptions: ", line);
- while( (ambig = find_cmd(prev, result, &tmp)) ) {
- fprintf(stderr, "%s ", ambig->pc_name);
- result = ambig + 1;
- }
- fprintf(stderr, "\n");
- break;
- }
- return 0;
-}
-
-/*************************************************************************
- * COMMANDS *
- *************************************************************************/
-
-
-static void print_commands(char * str, command_t * table) {
- command_t * cmds;
- char buf[80];
-
- for (cmds = table; cmds->pc_name; cmds++) {
- if (cmds->pc_func) {
- if (str) printf("\t%s %s\n", str, cmds->pc_name);
- else printf("\t%s\n", cmds->pc_name);
- }
- if (cmds->pc_sub_cmd) {
- if (str) {
- sprintf(buf, "%s %s", str, cmds->pc_name);
- print_commands(buf, cmds->pc_sub_cmd);
- } else {
- print_commands(cmds->pc_name, cmds->pc_sub_cmd);
- }
- }
- }
-}
-
-char *Parser_getstr(const char *prompt, const char *deft, char *res,
- size_t len)
-{
- char *line = NULL;
- int size = strlen(prompt) + strlen(deft) + 8;
- char *theprompt;
- theprompt = malloc(size);
- assert(theprompt);
-
- sprintf(theprompt, "%s [%s]: ", prompt, deft);
-
- line = readline(theprompt);
- free(theprompt);
-
- if ( line == NULL || *line == '\0' ) {
- strncpy(res, deft, len);
- } else {
- strncpy(res, line, len);
- }
-
- if ( line ) {
- free(line);
- return res;
- } else {
- return NULL;
- }
-}
-
-/* get integer from prompt, loop forever to get it */
-int Parser_getint(const char *prompt, long min, long max, long deft, int base)
-{
- int rc;
- long result;
- char *line;
- int size = strlen(prompt) + 40;
- char *theprompt = malloc(size);
- assert(theprompt);
- sprintf(theprompt,"%s [%ld, (0x%lx)]: ", prompt, deft, deft);
-
- fflush(stdout);
-
- do {
- line = NULL;
- line = readline(theprompt);
- if ( !line ) {
- fprintf(stdout, "Please enter an integer.\n");
- fflush(stdout);
- continue;
- }
- if ( *line == '\0' ) {
- free(line);
- result = deft;
- break;
- }
- rc = Parser_arg2int(line, &result, base);
- free(line);
- if ( rc != 0 ) {
- fprintf(stdout, "Invalid string.\n");
- fflush(stdout);
- } else if ( result > max || result < min ) {
- fprintf(stdout, "Error: response must lie between %ld and %ld.\n",
- min, max);
- fflush(stdout);
- } else {
- break;
- }
- } while ( 1 ) ;
-
- if (theprompt)
- free(theprompt);
- return result;
-
-}
-
-/* get boolean (starting with YyNn; loop forever */
-int Parser_getbool(const char *prompt, int deft)
-{
- int result = 0;
- char *line;
- int size = strlen(prompt) + 8;
- char *theprompt = malloc(size);
- assert(theprompt);
-
- fflush(stdout);
-
- if ( deft != 0 && deft != 1 ) {
- fprintf(stderr, "Error: Parser_getbool given bad default (%d).\n",
- deft);
- assert ( 0 );
- }
- sprintf(theprompt, "%s [%s]: ", prompt, (deft==0)? "N" : "Y");
-
- do {
- line = NULL;
- line = readline(theprompt);
- if ( line == NULL ) {
- result = deft;
- break;
- }
- if ( *line == '\0' ) {
- result = deft;
- break;
- }
- if ( *line == 'y' || *line == 'Y' ) {
- result = 1;
- break;
- }
- if ( *line == 'n' || *line == 'N' ) {
- result = 0;
- break;
- }
- if ( line )
- free(line);
- fprintf(stdout, "Invalid string. Must start with yY or nN\n");
- fflush(stdout);
- } while ( 1 );
-
- if ( line )
- free(line);
- if ( theprompt )
- free(theprompt);
- return result;
-}
-
-/* parse int out of a string or prompt for it */
-long Parser_intarg(const char *inp, const char *prompt, int deft,
- int min, int max, int base)
-{
- long result;
- int rc;
-
- rc = Parser_arg2int(inp, &result, base);
-
- if ( rc == 0 ) {
- return result;
- } else {
- return Parser_getint(prompt, deft, min, max, base);
- }
-}
-
-/* parse int out of a string or prompt for it */
-char *Parser_strarg(char *inp, const char *prompt, const char *deft,
- char *answer, int len)
-{
-
- if ( inp == NULL || *inp == '\0' ) {
- return Parser_getstr(prompt, deft, answer, len);
- } else
- return inp;
-}
-
-/* change a string into a number: return 0 on success. No invalid characters
- allowed. The processing of base and validity follows strtol(3)*/
-int Parser_arg2int(const char *inp, long *result, int base)
-{
- char *endptr;
-
- if ( (base !=0) && (base < 2 || base > 36) )
- return 1;
-
- *result = strtol(inp, &endptr, base);
-
- if ( *inp != '\0' && *endptr == '\0' )
- return 0;
- else
- return 1;
-}
-
-int Parser_quit(int argc, char **argv)
-{
- argc = argc;
- argv = argv;
- exit(0);
- return 0;
-}
+++ /dev/null
-#ifndef _PARSER_H_
-#define _PARSER_H_
-
-#define HISTORY 100 /* Don't let history grow unbounded */
-#define MAXARGS 100
-
-typedef struct parser_cmd {
- char *pc_name;
- int (* pc_func)(int, char **);
- struct parser_cmd * pc_sub_cmd;
- char *pc_help;
-} command_t;
-
-typedef struct argcmd {
- char *ac_name;
- int (*ac_func)(int, char **);
- char *ac_help;
-} argcmd_t;
-
-int Parser_quit(int argc, char **argv);
-void Parser_init(char *, command_t *); /* Set prompt and load command list */
-void Parser_commands(void); /* Start the command parser */
-void Parser_qhelp(int, char **); /* Quick help routine */
-int Parser_help(int, char **); /* Detailed help routine */
-void Parser_exit(int, char **); /* Shuts down command parser */
-int Parser_execarg(int argc, char **argv, command_t cmds[]);
-void execute_line(char * line);
-
-/* Converts a string to an integer */
-int Parser_int(char *, int *);
-
-/* Prompts for a string, with default values and a maximum length */
-char *Parser_getstr(const char *prompt, const char *deft, char *res,
- size_t len);
-
-/* Prompts for an integer, with minimum, maximum and default values and base */
-int Parser_getint(const char *prompt, long min, long max, long deft,
- int base);
-
-/* Prompts for a yes/no, with default */
-int Parser_getbool(const char *prompt, int deft);
-
-/* Extracts an integer from a string, or prompts if it cannot get one */
-long Parser_intarg(const char *inp, const char *prompt, int deft,
- int min, int max, int base);
-
-/* Extracts a word from the input, or propmts if it cannot get one */
-char *Parser_strarg(char *inp, const char *prompt, const char *deft,
- char *answer, int len);
-
-/* Extracts an integer from a string with a base */
-int Parser_arg2int(const char *inp, long *result, int base);
-
-
-#endif
git://git.whamcloud.com / fs / lustre-release.git / commitdiff