/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Lustre Light Super operations
+ * 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.
*
- * Copryright (C) 2002 Cluster File Systems, Inc.
+ * 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.
*/
#define DEBUG_SUBSYSTEM S_LLITE
#include <linux/module.h>
-#include <linux/random.h>
+#include <linux/types.h>
#include <linux/version.h>
-#include <linux/lustre_lite.h>
-#include <linux/lustre_ha.h>
-#include <linux/obd_lov.h>
-#include <linux/lustre_dlm.h>
+#include <lustre_lite.h>
+#include <lustre_ha.h>
+#include <lustre_dlm.h>
#include <linux/init.h>
#include <linux/fs.h>
+#include <lprocfs_status.h>
+#include "llite_internal.h"
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-kmem_cache_t *ll_file_data_slab;
-extern struct address_space_operations ll_aops;
-extern struct address_space_operations ll_dir_aops;
-struct super_operations ll_super_operations;
+static cfs_mem_cache_t *ll_inode_cachep;
-extern int ll_init_inodecache(void);
-extern void ll_destroy_inodecache(void);
-extern int ll_recover(struct recovd_data *, int);
-extern int ll_commitcbd_setup(struct ll_sb_info *);
-extern int ll_commitcbd_cleanup(struct ll_sb_info *);
-int ll_read_inode2(struct inode *inode, void *opaque);
-
-static char *ll_read_opt(const char *opt, char *data)
+static struct inode *ll_alloc_inode(struct super_block *sb)
{
- char *value;
- char *retval;
- ENTRY;
-
- CDEBUG(D_SUPER, "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);
-}
+ struct ll_inode_info *lli;
+ ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_ALLOC_INODE, 1);
+ OBD_SLAB_ALLOC_PTR_GFP(lli, ll_inode_cachep, CFS_ALLOC_IO);
+ if (lli == NULL)
+ return NULL;
-static int ll_set_opt(const char *opt, char *data, int fl)
-{
- ENTRY;
+ inode_init_once(&lli->lli_vfs_inode);
+ ll_lli_init(lli);
- CDEBUG(D_SUPER, "option: %s, data %s\n", opt, data);
- if ( strncmp(opt, data, strlen(opt)) )
- RETURN(0);
- else
- RETURN(fl);
+ return &lli->lli_vfs_inode;
}
-static void ll_options(char *options, char **ost, char **mds, int *flags)
+static void ll_destroy_inode(struct inode *inode)
{
- char *opt_ptr = options;
- char *this_char;
- ENTRY;
-
- if (!options) {
- EXIT;
- return;
- }
-
- while ((this_char = strsep (&opt_ptr, ",")) != NULL) {
- CDEBUG(D_SUPER, "this_char %s\n", this_char);
- if ( (!*ost && (*ost = ll_read_opt("osc", this_char)))||
- (!*mds && (*mds = ll_read_opt("mdc", this_char)))||
- (!(*flags & LL_SBI_NOLCK) && ((*flags) = (*flags) |
- ll_set_opt("nolock", this_char, LL_SBI_NOLCK))) )
- continue;
- }
- EXIT;
+ struct ll_inode_info *ptr = ll_i2info(inode);
+ OBD_SLAB_FREE_PTR(ptr, ll_inode_cachep);
}
-#ifndef log2
-#define log2(n) ffz(~(n))
-#endif
-
-
-static int ll_fill_super(struct super_block *sb, void *data, int silent)
-{
- struct inode *root = 0;
- struct obd_device *obd;
- struct ll_sb_info *sbi;
- char *osc = NULL;
- char *mdc = NULL;
- int err;
- struct ll_fid rootfid;
- struct obd_statfs osfs;
- struct ptlrpc_request *request = NULL;
- struct ptlrpc_connection *mdc_conn;
- struct ll_read_inode2_cookie lic;
- class_uuid_t uuid;
-
- ENTRY;
- MOD_INC_USE_COUNT;
-
- OBD_ALLOC(sbi, sizeof(*sbi));
- if (!sbi) {
- MOD_DEC_USE_COUNT;
- RETURN(-ENOMEM);
- }
-
- INIT_LIST_HEAD(&sbi->ll_conn_chain);
- generate_random_uuid(uuid);
- class_uuid_unparse(uuid, sbi->ll_sb_uuid);
-
- sb->s_fs_info = sbi;
-
- ll_options(data, &osc, &mdc, &sbi->ll_flags);
-
- if (!osc) {
- CERROR("no osc\n");
- GOTO(out_free, sb = NULL);
- }
-
- if (!mdc) {
- CERROR("no mdc\n");
- GOTO(out_free, sb = NULL);
- }
-
- obd = class_uuid2obd(mdc);
- if (!obd) {
- CERROR("MDC %s: not setup or attached\n", mdc);
- GOTO(out_free, sb = NULL);
- }
-
- err = obd_connect(&sbi->ll_mdc_conn, obd, sbi->ll_sb_uuid,
- ptlrpc_recovd, ll_recover);
- if (err) {
- CERROR("cannot connect to %s: rc = %d\n", mdc, err);
- GOTO(out_free, sb = NULL);
- }
-
-#warning Peter: is this the right place to raise the connection level?
- mdc_conn = sbi2mdc(sbi)->cl_import.imp_connection;
- mdc_conn->c_level = LUSTRE_CONN_FULL;
- list_add(&mdc_conn->c_sb_chain, &sbi->ll_conn_chain);
-
- obd = class_uuid2obd(osc);
- if (!obd) {
- CERROR("OSC %s: not setup or attached\n", osc);
- GOTO(out_mdc, sb = NULL);
- }
-
- err = obd_connect(&sbi->ll_osc_conn, obd, sbi->ll_sb_uuid,
- ptlrpc_recovd, ll_recover);
- if (err) {
- CERROR("cannot connect to %s: rc = %d\n", osc, err);
- GOTO(out_mdc, sb = NULL);
- }
-
- err = mdc_getstatus(&sbi->ll_mdc_conn, &rootfid);
- if (err) {
- CERROR("cannot mds_connect: rc = %d\n", err);
- GOTO(out_mdc, sb = NULL);
- }
- CDEBUG(D_SUPER, "rootfid "LPU64"\n", rootfid.id);
- sbi->ll_rootino = rootfid.id;
-
- memset(&osfs, 0, sizeof(osfs));
- err = mdc_statfs(&sbi->ll_mdc_conn, &osfs);
- sb->s_blocksize = osfs.os_bsize;
- sb->s_blocksize_bits = log2(osfs.os_bsize);
- sb->s_magic = LL_SUPER_MAGIC;
- sb->s_maxbytes = (1ULL << (32 + 9)) - osfs.os_bsize;
-
- sb->s_op = &ll_super_operations;
-
- /* make root inode */
- err = mdc_getattr(&sbi->ll_mdc_conn, sbi->ll_rootino, S_IFDIR,
- OBD_MD_FLNOTOBD|OBD_MD_FLBLOCKS, 0, &request);
- if (err) {
- CERROR("mdc_getattr failed for root: rc = %d\n", err);
- GOTO(out_request, sb = NULL);
- }
-
- /* initialize committed transaction callback daemon */
- spin_lock_init(&sbi->ll_commitcbd_lock);
- init_waitqueue_head(&sbi->ll_commitcbd_waitq);
- init_waitqueue_head(&sbi->ll_commitcbd_ctl_waitq);
- sbi->ll_commitcbd_flags = 0;
- err = ll_commitcbd_setup(sbi);
- if (err) {
- CERROR("failed to start commit callback daemon: rc = %d\n",err);
- GOTO(out_request, sb = NULL);
- }
-
- lic.lic_body = lustre_msg_buf(request->rq_repmsg, 0);
- lic.lic_lmm = NULL;
- root = iget5_locked(sb, sbi->ll_rootino, NULL,
- ll_read_inode2, &lic);
-
- if (root) {
- sb->s_root = d_alloc_root(root);
- } else {
- CERROR("lustre_lite: bad iget4 for root\n");
- GOTO(out_cdb, sb = NULL);
- }
-
- ptlrpc_req_finished(request);
- request = NULL;
-
-out_dev:
- if (mdc)
- OBD_FREE(mdc, strlen(mdc) + 1);
- if (osc)
- OBD_FREE(osc, strlen(osc) + 1);
-
- RETURN(0);
-
-out_cdb:
- ll_commitcbd_cleanup(sbi);
-out_request:
- ptlrpc_req_finished(request);
- obd_disconnect(&sbi->ll_osc_conn);
-out_mdc:
- obd_disconnect(&sbi->ll_mdc_conn);
-out_free:
- OBD_FREE(sbi, sizeof(*sbi));
-
- MOD_DEC_USE_COUNT;
- goto out_dev;
-} /* ll_fill_super */
-
-struct super_block * ll_get_sb(struct file_system_type *fs_type,
- int flags, char *devname, void * data)
+int ll_init_inodecache(void)
{
- return get_sb_nodev(fs_type, flags, data, ll_fill_super);
+ ll_inode_cachep = cfs_mem_cache_create("lustre_inode_cache",
+ sizeof(struct ll_inode_info),
+ 0, CFS_SLAB_HWCACHE_ALIGN);
+ if (ll_inode_cachep == NULL)
+ return -ENOMEM;
+ return 0;
}
-static void ll_put_super(struct super_block *sb)
-{
- struct ll_sb_info *sbi = ll_s2sbi(sb);
- struct ll_fid rootfid;
- ENTRY;
-
- list_del(&sbi->ll_conn_chain);
- ll_commitcbd_cleanup(sbi);
- obd_disconnect(&sbi->ll_osc_conn);
-
- /* NULL request to force sync on the MDS, and get the last_committed
- * value to flush remaining RPCs from the pending queue on client.
- *
- * XXX This should be an mdc_sync() call to sync the whole MDS fs,
- * which we can call for other reasons as well.
- */
- mdc_getstatus(&sbi->ll_mdc_conn, &rootfid);
-
- obd_disconnect(&sbi->ll_mdc_conn);
- OBD_FREE(sbi, sizeof(*sbi));
-
- MOD_DEC_USE_COUNT;
- EXIT;
-} /* ll_put_super */
-
-static void ll_clear_inode(struct inode *inode)
+void ll_destroy_inodecache(void)
{
- ENTRY;
-
- if (atomic_read(&inode->i_count) == 0) {
- struct ll_inode_info *lli = ll_i2info(inode);
- struct lov_stripe_md *lsm = lli->lli_smd;
- char *symlink_name = lli->lli_symlink_name;
+ int rc;
- if (lsm) {
- OBD_FREE(lsm, ll_ost_easize(inode->i_sb));
- lli->lli_smd = NULL;
- }
- if (symlink_name) {
- OBD_FREE(symlink_name, strlen(symlink_name) + 1);
- lli->lli_symlink_name = NULL;
- }
- }
- EXIT;
+ rc = cfs_mem_cache_destroy(ll_inode_cachep);
+ LASSERTF(rc == 0, "ll_inode_cache: not all structures were freed\n");
}
-static void ll_delete_inode(struct inode *inode)
-{
- ENTRY;
- if (S_ISREG(inode->i_mode)) {
- int err;
- struct obdo *oa;
- struct lov_stripe_md *lsm = ll_i2info(inode)->lli_smd;
-
- if (!lsm)
- GOTO(out, -EINVAL);
-
- if (lsm->lsm_object_id == 0) {
- CERROR("This really happens\n");
- /* No obdo was ever created */
- GOTO(out, 0);
- }
-
- oa = obdo_alloc();
- if (oa == NULL)
- GOTO(out, -ENOMEM);
+/* exported operations */
+struct super_operations lustre_super_operations =
+{
+ .alloc_inode = ll_alloc_inode,
+ .destroy_inode = ll_destroy_inode,
+ .clear_inode = ll_clear_inode,
+ .delete_inode = ll_delete_inode,
+ .put_super = ll_put_super,
+ .statfs = ll_statfs,
+ .umount_begin = ll_umount_begin,
+ .remount_fs = ll_remount_fs,
+ .show_options = ll_show_options,
+ .sync_fs = ll_sync_fs,
+};
- oa->o_id = lsm->lsm_object_id;
- oa->o_easize = ll_mds_easize(inode->i_sb);
- oa->o_mode = inode->i_mode;
- oa->o_valid = OBD_MD_FLID | OBD_MD_FLEASIZE | OBD_MD_FLTYPE;
- err = obd_destroy(ll_i2obdconn(inode), oa, lsm);
- obdo_free(oa);
- CDEBUG(D_SUPER, "obd destroy of objid "LPX64" error %d\n",
- lsm->lsm_object_id, err);
- }
-out:
- clear_inode(inode);
- EXIT;
-}
+void lustre_register_client_process_config(int (*cpc)(struct lustre_cfg *lcfg));
-/* 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 vvp_global_init(void);
+void vvp_global_fini(void);
-int ll_inode_setattr(struct inode *inode, struct iattr *attr, int do_trunc)
+static int __init init_lustre_lite(void)
{
- struct ptlrpc_request *request = 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_mdc_conn, inode, attr, &request);
- if (err)
- CERROR("mdc_setattr fails (%d)\n", err);
+ int i, rc, seed[2];
+ struct timeval tv;
+ lnet_process_id_t lnet_id;
- ptlrpc_req_finished(request);
+ /* print an address of _any_ initialized kernel symbol from this
+ * module, to allow debugging with gdb that doesn't support data
+ * symbols from modules.*/
+ CDEBUG(D_CONSOLE, "Lustre client module (%p).\n",
+ &lustre_super_operations);
- RETURN(err);
-}
-
-int ll_setattr(struct dentry *de, struct iattr *attr)
-{
- int rc = inode_change_ok(de->d_inode, attr);
-
- if (rc)
- return rc;
-
- return ll_inode_setattr(de->d_inode, attr, 1);
-}
-
-static int ll_statfs(struct super_block *sb, struct statfs *sfs)
-{
- struct ll_sb_info *sbi = ll_s2sbi(sb);
- struct obd_statfs osfs;
- int rc;
- ENTRY;
-
- memset(sfs, 0, sizeof(*sfs));
- rc = obd_statfs(&sbi->ll_mdc_conn, &osfs);
- statfs_unpack(sfs, &osfs);
+ rc = ll_init_inodecache();
if (rc)
- CERROR("mdc_statfs fails: rc = %d\n", rc);
- else
- CDEBUG(D_SUPER, "mdc_statfs shows blocks "LPU64"/"LPU64
- " objects "LPU64"/"LPU64"\n",
- osfs.os_bavail, osfs.os_blocks,
- osfs.os_ffree, osfs.os_files);
-
- /* temporary until mds_statfs returns statfs info for all OSTs */
- if (!rc) {
- rc = obd_statfs(&sbi->ll_osc_conn, &osfs);
- if (rc) {
- CERROR("obd_statfs fails: rc = %d\n", rc);
- GOTO(out, rc);
- }
- CDEBUG(D_SUPER, "obd_statfs shows blocks "LPU64"/"LPU64
- " objects "LPU64"/"LPU64"\n",
- osfs.os_bavail, osfs.os_blocks,
- osfs.os_ffree, osfs.os_files);
-
- while (osfs.os_blocks > ~0UL) {
- sfs->f_bsize <<= 1;
-
- osfs.os_blocks >>= 1;
- osfs.os_bfree >>= 1;
- osfs.os_bavail >>= 1;
- }
- sfs->f_blocks = osfs.os_blocks;
- sfs->f_bfree = osfs.os_bfree;
- sfs->f_bavail = osfs.os_bavail;
- if (osfs.os_ffree < (__u64)sfs->f_ffree)
- sfs->f_ffree = osfs.os_ffree;
- }
-
-out:
- RETURN(rc);
-}
-
-void ll_update_inode(struct inode *inode, struct mds_body *body)
-{
- if (body->valid & OBD_MD_FLID)
- inode->i_ino = body->ino;
- if (body->valid & OBD_MD_FLATIME)
- inode->i_atime = body->atime;
- if (body->valid & OBD_MD_FLMTIME)
- inode->i_mtime = body->mtime;
- if (body->valid & OBD_MD_FLCTIME)
- inode->i_ctime = body->ctime;
- if (body->valid & OBD_MD_FLMODE)
- inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT);
- if (body->valid & OBD_MD_FLTYPE)
- inode->i_mode = (inode->i_mode & ~S_IFMT)|(body->mode & S_IFMT);
- if (body->valid & OBD_MD_FLUID)
- inode->i_uid = body->uid;
- if (body->valid & OBD_MD_FLGID)
- inode->i_gid = body->gid;
- if (body->valid & OBD_MD_FLFLAGS)
- inode->i_flags = body->flags;
- if (body->valid & OBD_MD_FLNLINK)
- inode->i_nlink = body->nlink;
- if (body->valid & OBD_MD_FLGENER)
- inode->i_generation = body->generation;
- if (body->valid & OBD_MD_FLRDEV)
- inode->i_rdev = to_kdev_t(body->rdev);
- if (body->valid & OBD_MD_FLSIZE)
- inode->i_size = body->size;
-}
-
-int ll_read_inode2(struct inode *inode, void *opaque)
-{
- struct ll_read_inode2_cookie *lic = opaque;
- struct mds_body *body = lic->lic_body;
- struct ll_inode_info *lli = ll_i2info(inode);
- ENTRY;
-
- sema_init(&lli->lli_open_sem, 1);
-
- /* core attributes first */
- ll_update_inode(inode, body);
-
- //if (body->valid & OBD_MD_FLEASIZE)
- if (lic && lic->lic_lmm) {
- struct lov_mds_md *lmm = lic->lic_lmm;
- int size;
-
- /* XXX This should probably not be an error in the future,
- * when we allow LOV OSTs to be added.
- */
- if (lmm->lmm_easize != ll_mds_easize(inode->i_sb)) {
- CERROR("Striping metadata size error %ld\n",
- inode->i_ino);
- LBUG();
- }
- size = ll_ost_easize(inode->i_sb);
- OBD_ALLOC(lli->lli_smd, size);
- if (!lli->lli_smd) {
- CERROR("No memory for %d\n", size);
- LBUG();
- }
- lov_unpackmd(lli->lli_smd, lmm);
- } else {
- lli->lli_smd = NULL;
- }
-
- /* Get the authoritative file size */
- if (lli->lli_smd && (inode->i_mode & S_IFREG)) {
- int rc;
-
- rc = ll_file_size(inode, lli->lli_smd);
- if (rc) {
- CERROR("ll_file_size: %d\n", rc);
- /* FIXME: need to somehow prevent inode creation */
- LBUG();
- }
- }
-
- /* 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,
- kdev_t_to_nr(inode->i_rdev));
- EXIT;
+ return -ENOMEM;
+ ll_file_data_slab = cfs_mem_cache_create("ll_file_data",
+ sizeof(struct ll_file_data), 0,
+ CFS_SLAB_HWCACHE_ALIGN);
+ if (ll_file_data_slab == NULL) {
+ ll_destroy_inodecache();
+ return -ENOMEM;
}
- return 0;
-}
-static inline void invalidate_request_list(struct list_head *req_list)
-{
- struct list_head *tmp, *n;
- list_for_each_safe(tmp, n, req_list) {
- struct ptlrpc_request *req =
- list_entry(tmp, struct ptlrpc_request, rq_list);
- CERROR("invalidating req xid %d op %d to %s:%d\n",
- (unsigned long long)req->rq_xid, req->rq_reqmsg->opc,
- req->rq_connection->c_remote_uuid,
- req->rq_import->imp_client->cli_request_portal);
- req->rq_flags |= PTL_RPC_FL_ERR;
- wake_up(&req->rq_wait_for_rep);
+ ll_remote_perm_cachep = cfs_mem_cache_create("ll_remote_perm_cache",
+ sizeof(struct ll_remote_perm),
+ 0, 0);
+ if (ll_remote_perm_cachep == NULL) {
+ cfs_mem_cache_destroy(ll_file_data_slab);
+ ll_file_data_slab = NULL;
+ ll_destroy_inodecache();
+ return -ENOMEM;
}
-}
-void ll_umount_begin(struct super_block *sb)
-{
- struct ll_sb_info *sbi = ll_s2sbi(sb);
- struct list_head *ctmp;
-
- ENTRY;
-
- list_for_each(ctmp, &sbi->ll_conn_chain) {
- struct ptlrpc_connection *conn;
- conn = list_entry(ctmp, struct ptlrpc_connection, c_sb_chain);
-
- spin_lock(&conn->c_lock);
- conn->c_flags |= CONN_INVALID;
- invalidate_request_list(&conn->c_sending_head);
- invalidate_request_list(&conn->c_delayed_head);
- spin_unlock(&conn->c_lock);
+ ll_rmtperm_hash_cachep = cfs_mem_cache_create("ll_rmtperm_hash_cache",
+ REMOTE_PERM_HASHSIZE *
+ sizeof(cfs_list_t),
+ 0, 0);
+ if (ll_rmtperm_hash_cachep == NULL) {
+ cfs_mem_cache_destroy(ll_remote_perm_cachep);
+ ll_remote_perm_cachep = NULL;
+ cfs_mem_cache_destroy(ll_file_data_slab);
+ ll_file_data_slab = NULL;
+ ll_destroy_inodecache();
+ return -ENOMEM;
}
- EXIT;
-}
-
+ proc_lustre_fs_root = proc_lustre_root ?
+ lprocfs_register("llite", proc_lustre_root, NULL, NULL) : NULL;
-static kmem_cache_t *ll_inode_cachep;
+ lustre_register_client_fill_super(ll_fill_super);
+ lustre_register_kill_super_cb(ll_kill_super);
-static struct inode *ll_alloc_inode(struct super_block *sb)
-{
- struct ll_inode_info *lli;
- lli = kmem_cache_alloc(ll_inode_cachep, SLAB_KERNEL);
- if (!lli)
- return NULL;
+ lustre_register_client_process_config(ll_process_config);
- memset(lli, 0, (char *)&lli->lli_vfs_inode - (char *)lli);
- sema_init(&lli->lli_open_sem, 1);
+ cfs_get_random_bytes(seed, sizeof(seed));
- return &lli->lli_vfs_inode;
-}
+ /* Nodes with small feet have little entropy
+ * the NID for this node gives the most entropy in the low bits */
+ for (i=0; ; i++) {
+ if (LNetGetId(i, &lnet_id) == -ENOENT) {
+ break;
+ }
+ if (LNET_NETTYP(LNET_NIDNET(lnet_id.nid)) != LOLND) {
+ seed[0] ^= LNET_NIDADDR(lnet_id.nid);
+ }
+ }
-static void ll_destroy_inode(struct inode *inode)
-{
- kmem_cache_free(ll_inode_cachep, ll_i2info(inode));
-}
+ cfs_gettimeofday(&tv);
+ cfs_srand(tv.tv_sec ^ seed[0], tv.tv_usec ^ seed[1]);
-static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags)
-{
- struct ll_inode_info *lli = foo;
+ init_timer(&ll_capa_timer);
+ ll_capa_timer.function = ll_capa_timer_callback;
+ rc = ll_capa_thread_start();
+ /*
+ * XXX normal cleanup is needed here.
+ */
+ if (rc == 0)
+ rc = vvp_global_init();
- if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
- SLAB_CTOR_CONSTRUCTOR)
- inode_init_once(&lli->lli_vfs_inode);
+ return rc;
}
-int ll_init_inodecache(void)
+static void __exit exit_lustre_lite(void)
{
- ll_inode_cachep = kmem_cache_create("lustre_inode_cache",
- sizeof(struct ll_inode_info),
- 0, SLAB_HWCACHE_ALIGN,
- init_once, NULL);
- if (ll_inode_cachep == NULL)
- return -ENOMEM;
- return 0;
-}
+ int rc;
-void ll_destroy_inodecache(void)
-{
- if (kmem_cache_destroy(ll_inode_cachep))
- CERROR("ll_inode_cache: not all structures were freed\n");
-}
+ vvp_global_fini();
+ del_timer(&ll_capa_timer);
+ ll_capa_thread_stop();
+ LASSERTF(capa_count[CAPA_SITE_CLIENT] == 0,
+ "client remaining capa count %d\n",
+ capa_count[CAPA_SITE_CLIENT]);
+ lustre_register_client_fill_super(NULL);
+ lustre_register_kill_super_cb(NULL);
+ lustre_register_client_process_config(NULL);
-/* exported operations */
-struct super_operations ll_super_operations =
-{
- alloc_inode: ll_alloc_inode,
- destroy_inode: ll_destroy_inode,
- clear_inode: ll_clear_inode,
- delete_inode: ll_delete_inode,
- put_super: ll_put_super,
- statfs: ll_statfs,
- umount_begin: ll_umount_begin
-};
+ ll_destroy_inodecache();
-struct file_system_type lustre_lite_fs_type = {
- .owner = THIS_MODULE,
- .name = "lustre_lite",
- .get_sb = ll_get_sb,
- .kill_sb = kill_litter_super,
-};
+ rc = cfs_mem_cache_destroy(ll_rmtperm_hash_cachep);
+ LASSERTF(rc == 0, "couldn't destroy ll_rmtperm_hash_cachep\n");
+ ll_rmtperm_hash_cachep = NULL;
-static int __init init_lustre_lite(void)
-{
- int rc;
- printk(KERN_INFO "Lustre Lite 0.5.14, info@clusterfs.com\n");
- rc = ll_init_inodecache();
- if (rc)
- return -ENOMEM;
- ll_file_data_slab = kmem_cache_create("ll_file_data",
- sizeof(struct ll_file_data), 0,
- SLAB_HWCACHE_ALIGN, NULL, NULL);
- if (ll_file_data_slab == NULL) {
- ll_destroy_inodecache();
- return -ENOMEM;
- }
- return register_filesystem(&lustre_lite_fs_type);
-}
+ rc = cfs_mem_cache_destroy(ll_remote_perm_cachep);
+ LASSERTF(rc == 0, "couldn't destroy ll_remote_perm_cachep\n");
+ ll_remote_perm_cachep = NULL;
-static void __exit exit_lustre_lite(void)
-{
- unregister_filesystem(&lustre_lite_fs_type);
- ll_destroy_inodecache();
- kmem_cache_destroy(ll_file_data_slab);
+ rc = cfs_mem_cache_destroy(ll_file_data_slab);
+ LASSERTF(rc == 0, "couldn't destroy ll_file_data slab\n");
+ if (proc_lustre_fs_root)
+ lprocfs_remove(&proc_lustre_fs_root);
}
-MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
-MODULE_DESCRIPTION("Lustre Lite Client File System v1.0");
+MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_DESCRIPTION("Lustre Lite Client File System");
MODULE_LICENSE("GPL");
module_init(init_lustre_lite);
module_exit(exit_lustre_lite);
-#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff