/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * lustre lite cluster file system
+ * GPL HEADER START
*
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * Copyright (C) 2002 Cluster File Systems, Inc. <info@clusterfs.com>
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program 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 version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
-
+#ifndef _LINUX_LL_H
+#define _LINUX_LL_H
#ifndef _LL_H
-#define _LL_H
+#error Do not #include this file directly. #include <lustre_lite.h> instead
+#endif
#ifdef __KERNEL__
#include <linux/version.h>
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
#include <asm/statfs.h>
-#endif
#include <linux/fs.h>
#include <linux/dcache.h>
-#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
#include <linux/proc_fs.h>
-#include <linux/obd_class.h>
-#include <linux/lustre_net.h>
-#include <linux/lustre_mds.h>
-#include <linux/lustre_ha.h>
+#include <obd_class.h>
+#include <lustre_net.h>
+#include <lustre_ha.h>
#include <linux/rbtree.h>
#include <linux/lustre_compat25.h>
#include <linux/pagemap.h>
-#include <linux/namei.h>
+#ifdef HAVE_PERCPU_COUNTER
+#include <linux/percpu_counter.h>
-/* forward declarations */
-struct remote_acl;
+typedef struct percpu_counter lcounter_t;
-/* careful, this is easy to screw up */
-#define PAGE_CACHE_MAXBYTES ((__u64)(~0UL) << PAGE_CACHE_SHIFT)
+#define lcounter_read(counter) (int)percpu_counter_read(counter)
+#define lcounter_inc(counter) percpu_counter_inc(counter)
+#define lcounter_dec(counter) percpu_counter_dec(counter)
-#define LL_IT2STR(it) ((it) ? ldlm_it2str((it)->it_op) : "0")
-
-static inline struct lookup_intent *ll_nd2it(struct nameidata *nd)
-{
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
- return &nd->intent.open;
+#ifdef HAVE_PERCPU_2ND_ARG
+# define lcounter_init(counter) percpu_counter_init(counter, 0)
#else
- return nd->intent;
+# define lcounter_init(counter) percpu_counter_init(counter)
#endif
-}
-struct ll_dentry_data {
- int lld_cwd_count;
- int lld_mnt_count;
- struct obd_client_handle lld_cwd_och;
- struct obd_client_handle lld_mnt_och;
-};
-
-#define ll_d2d(de) ((struct ll_dentry_data*) de->d_fsdata)
-
-extern struct file_operations ll_pgcache_seq_fops;
-
-#define LLI_INODE_MAGIC 0x111d0de5
-#define LLI_INODE_DEAD 0xdeadd00d
-#define LLI_F_HAVE_OST_SIZE_LOCK 0
-#define LLI_F_HAVE_MDS_SIZE_LOCK 1
-#define LLI_F_PREFER_EXTENDED_SIZE 2
-#define LLI_F_DIRTY_HANDLE 3
-
-struct ll_inode_info {
- int lli_size_pid;
- int lli_inode_magic;
- struct lov_stripe_md *lli_smd;
- struct mea *lli_mea;
- struct lustre_id lli_id; /* full lustre_id */
- char *lli_symlink_name;
- struct semaphore lli_open_sem;
- struct semaphore lli_size_sem;
- __u64 lli_maxbytes;
- __u64 lli_io_epoch;
- __u64 lli_audit_mask;
- unsigned long lli_flags;
-
- /* this lock protects s_d_w and p_w_ll */
- spinlock_t lli_lock;
- int lli_send_done_writing;
-
- int lli_snap_index;
-
- struct list_head lli_pending_write_llaps;
-
- struct list_head lli_close_item;
-
- struct file_operations *ll_save_ifop;
- struct file_operations *ll_save_ffop;
- struct file_operations *ll_save_wfop;
- struct file_operations *ll_save_wrfop;
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
- struct inode lli_vfs_inode;
-#endif
- struct semaphore lli_och_sem; /* Protects access to och pointers
- and their usage counters */
- /* We need all three because every inode may be opened in different
- modes */
- struct obd_client_handle *lli_mds_read_och;
- __u64 lli_open_fd_read_count;
- struct obd_client_handle *lli_mds_write_och;
- __u64 lli_open_fd_write_count;
- struct obd_client_handle *lli_mds_exec_och;
- __u64 lli_open_fd_exec_count;
- struct posix_acl *lli_posix_acl;
- struct remote_acl *lli_remote_acl;
- struct lustre_key *lli_key_info;
-};
+#define lcounter_destroy(counter) percpu_counter_destroy(counter)
-// FIXME: replace the name of this with LL_I to conform to kernel stuff
-// static inline struct ll_inode_info *LL_I(struct inode *inode)
-static inline struct ll_inode_info *ll_i2info(struct inode *inode)
-{
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
- return container_of(inode, struct ll_inode_info, lli_vfs_inode);
#else
- return (struct ll_inode_info *)&(inode->u.generic_ip);
-#endif
-}
+typedef struct { cfs_atomic_t count; } lcounter_t;
+
+#define lcounter_read(counter) cfs_atomic_read(&counter->count)
+#define lcounter_inc(counter) cfs_atomic_inc(&counter->count)
+#define lcounter_dec(counter) cfs_atomic_dec(&counter->count)
+#define lcounter_init(counter) cfs_atomic_set(&counter->count, 0)
+#define lcounter_destroy(counter)
-#define LLI_HAVE_FLSIZE(inode) \
- test_bit(LLI_F_HAVE_MDS_SIZE_LOCK, &ll_i2info(inode)->lli_flags)
-#define LLI_DIRTY_HANDLE(inode) \
- test_bit(LLI_F_DIRTY_HANDLE, &ll_i2info(inode)->lli_flags)
+#endif /* if defined HAVE_PERCPU_COUNTER */
/* lprocfs.c */
enum {
LPROC_LL_WRITE_BYTES,
LPROC_LL_BRW_READ,
LPROC_LL_BRW_WRITE,
+ LPROC_LL_OSC_READ,
+ LPROC_LL_OSC_WRITE,
LPROC_LL_IOCTL,
LPROC_LL_OPEN,
LPROC_LL_RELEASE,
LPROC_LL_FSYNC,
LPROC_LL_SETATTR,
LPROC_LL_TRUNC,
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+ LPROC_LL_LOCKLESS_TRUNC,
+ LPROC_LL_FLOCK,
LPROC_LL_GETATTR,
-#else
- LPROC_LL_REVALIDATE,
-#endif
LPROC_LL_STAFS,
LPROC_LL_ALLOC_INODE,
-
- LPROC_LL_DIRECT_READ,
- LPROC_LL_DIRECT_WRITE,
LPROC_LL_SETXATTR,
LPROC_LL_GETXATTR,
- LPROC_LL_FILE_OPCODES,
-};
-
-struct lustre_intent_data {
- int it_disposition;
- int it_status;
- __u64 it_lock_handle;
- void *it_data;
- int it_lock_mode;
- int it_int_flags;
- void *it_key;
- int it_key_size;
+ LPROC_LL_LISTXATTR,
+ LPROC_LL_REMOVEXATTR,
+ LPROC_LL_INODE_PERM,
+ LPROC_LL_DIRECT_READ,
+ LPROC_LL_DIRECT_WRITE,
+ LPROC_LL_LOCKLESS_READ,
+ LPROC_LL_LOCKLESS_WRITE,
+ LPROC_LL_FILE_OPCODES
};
-#define LUSTRE_IT(it) ((struct lustre_intent_data *)((it)->d.fs_data))
#else
-#include <linux/lustre_idl.h>
+#include <lustre/lustre_idl.h>
#endif /* __KERNEL__ */
-#define LLAP_FROM_COOKIE(c) \
- (LASSERT(((struct ll_async_page *)(c))->llap_magic == LLAP_MAGIC), \
- (struct ll_async_page *)(c))
-
-#include <lustre/lustre_user.h>
-
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff