/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * lustre/lib/fsfilt_ext3.c
- * Lustre filesystem abstraction routines
+ * GPL HEADER START
*
- * Copyright (C) 2002, 2003 Cluster File Systems, Inc.
- * Author: Andreas Dilger <adilger@clusterfs.com>
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * 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.
*
- * 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.
+ * 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).
*
- * 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
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * 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.
+ * 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.
+ *
+ * Copyright (c) 2011 Whamcloud, Inc.
+ *
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/lvfs/fsfilt_ext3.c
+ *
+ * Author: Andreas Dilger <adilger@clusterfs.com>
*/
#define DEBUG_SUBSYSTEM S_FILTER
#include <linux/init.h>
#include <linux/module.h>
#include <linux/fs.h>
-#include <linux/jbd.h>
#include <linux/slab.h>
#include <linux/pagemap.h>
#include <linux/quotaops.h>
+#ifdef HAVE_LINUX_EXPORTFS_H
+#include <linux/exportfs.h>
+#endif
+#ifdef HAVE_EXT4_LDISKFS
+#include <ext4/ext4.h>
+#include <ext4/ext4_jbd2.h>
+#else
+#include <linux/jbd.h>
#include <linux/ext3_fs.h>
#include <linux/ext3_jbd.h>
+#endif
#include <linux/version.h>
-/* XXX ugh */
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
- #include <linux/ext3_xattr.h>
+#include <linux/bitops.h>
+#include <linux/quota.h>
+#ifdef HAVE_QUOTAIO_H
+# include <linux/quotaio_v2.h>
+#elif defined(HAVE_FS_QUOTA_QUOTAIO_H)
+# include <quota/quotaio_v2.h>
+# include <quota/quota_tree.h>
+# define V2_DQTREEOFF QT_TREEOFF
+#elif defined(HAVE_FS_QUOTAIO_V1_H)
+# include <quotaio_v2.h>
+# include <quota_tree.h>
+# define V2_DQTREEOFF QT_TREEOFF
+# define V2_INITQVERSIONS_R1 V2_INITQVERSIONS
+#endif
+
+#ifdef QFMT_VFS_V1
+#define QFMT_LUSTRE QFMT_VFS_V1
+#else
+#define QFMT_LUSTRE QFMT_VFS_V0
+#endif
+
+#if defined(HAVE_EXT3_XATTR_H)
+#include <ext3/xattr.h>
+#else
+/* ext3 xattr.h not available in rh style kernel-devel rpm */
+extern int ext3_xattr_get(struct inode *, int, const char *, void *, size_t);
+extern int ext3_xattr_set_handle(handle_t *, struct inode *, int, const char *, const void *, size_t, int);
+#endif
+
+#include <libcfs/libcfs.h>
+#include <lustre_fsfilt.h>
+#include <obd.h>
+#include <lustre_quota.h>
+#include <linux/lustre_compat25.h>
+#include <linux/lprocfs_status.h>
+
+#ifdef HAVE_EXT4_LDISKFS
+#include <ext4/ext4_extents.h>
+#else
+#include <linux/ext3_extents.h>
+#endif
+
+#include "lustre_quota_fmt.h"
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,15)
+#define FSFILT_DATA_TRANS_BLOCKS(sb) EXT3_DATA_TRANS_BLOCKS
+#define FSFILT_DELETE_TRANS_BLOCKS(sb) EXT3_DELETE_TRANS_BLOCKS
+#else
+#define FSFILT_DATA_TRANS_BLOCKS(sb) EXT3_DATA_TRANS_BLOCKS(sb)
+#define FSFILT_DELETE_TRANS_BLOCKS(sb) EXT3_DELETE_TRANS_BLOCKS(sb)
+#endif
+
+#ifdef EXT3_SINGLEDATA_TRANS_BLOCKS_HAS_SB
+/* for kernels 2.6.18 and later */
+#define FSFILT_SINGLEDATA_TRANS_BLOCKS(sb) EXT3_SINGLEDATA_TRANS_BLOCKS(sb)
+#else
+#define FSFILT_SINGLEDATA_TRANS_BLOCKS(sb) EXT3_SINGLEDATA_TRANS_BLOCKS
+#endif
+
+#ifdef EXT_INSERT_EXTENT_WITH_5ARGS
+#define fsfilt_ext3_ext_insert_extent(handle, inode, path, newext, flag) \
+ ext3_ext_insert_extent(handle, inode, path, newext, flag)
#else
- #include <linux/../../fs/ext3/xattr.h>
+#define fsfilt_ext3_ext_insert_extent(handle, inode, path, newext, flag) \
+ ext3_ext_insert_extent(handle, inode, path, newext)
+#endif
+
+#ifdef EXT3_DISCARD_PREALLOCATIONS
+#define ext3_mb_discard_inode_preallocations(inode) \
+ ext3_discard_preallocations(inode)
#endif
-#include <linux/kp30.h>
-#include <linux/lustre_fsfilt.h>
-#include <linux/obd.h>
-#include <linux/obd_class.h>
-static kmem_cache_t *fcb_cache;
-static atomic_t fcb_cache_count = ATOMIC_INIT(0);
+
+static cfs_mem_cache_t *fcb_cache;
struct fsfilt_cb_data {
struct journal_callback cb_jcb; /* jbd private data - MUST BE FIRST */
#ifndef EXT3_XATTR_INDEX_TRUSTED /* temporary until we hit l28 kernel */
#define EXT3_XATTR_INDEX_TRUSTED 4
#endif
-#define XATTR_LUSTRE_MDS_LOV_EA "lov"
-#define EXT3_XATTR_INDEX_LUSTRE 5 /* old */
-#define XATTR_LUSTRE_MDS_OBJID "system.lustre_mds_objid" /* old */
+#ifdef HAVE_EXT4_LDISKFS
+#define fsfilt_log_start_commit(journal, tid) jbd2_log_start_commit(journal, tid)
+#define fsfilt_log_wait_commit(journal, tid) jbd2_log_wait_commit(journal, tid)
+#define fsfilt_journal_callback_set(handle, func, jcb) jbd2_journal_callback_set(handle, func, jcb)
+#else
+#define fsfilt_log_start_commit(journal, tid) log_start_commit(journal, tid)
+#define fsfilt_log_wait_commit(journal, tid) log_wait_commit(journal, tid)
+#define fsfilt_journal_callback_set(handle, func, jcb) journal_callback_set(handle, func, jcb)
+#define ext_pblock(ex) le32_to_cpu((ex)->ee_start)
+#define ext3_ext_store_pblock(ex, pblock) ((ex)->ee_start = cpu_to_le32(pblock))
+#define ext3_inode_bitmap(sb,desc) le32_to_cpu((desc)->bg_inode_bitmap)
+#endif
+
+#ifndef ext3_find_next_bit
+#define ext3_find_next_bit ext2_find_next_bit
+#endif
+
+#ifndef ext2_find_next_bit
+#ifdef __LITTLE_ENDIAN
+#define ext2_find_next_bit(addr, size, off) find_next_bit((unsigned long *)(addr), (size), (off))
+#else
+error "Need implementation of find_next_bit on big-endian systems"
+#endif /* __LITTLE_ENDIAN */
+#endif /* !ext2_find_next_le_bit */
+
+static char *fsfilt_ext3_get_label(struct super_block *sb)
+{
+ return EXT3_SB(sb)->s_es->s_volume_name;
+}
+
+static int fsfilt_ext3_set_label(struct super_block *sb, char *label)
+{
+ /* see e.g. fsfilt_ext3_write_record() */
+ journal_t *journal;
+ handle_t *handle;
+ int err;
+
+ journal = EXT3_SB(sb)->s_journal;
+ handle = ext3_journal_start_sb(sb, 1);
+ if (IS_ERR(handle)) {
+ CERROR("can't start transaction\n");
+ return(PTR_ERR(handle));
+ }
+
+ err = ext3_journal_get_write_access(handle, EXT3_SB(sb)->s_sbh);
+ if (err)
+ goto out;
+
+ memcpy(EXT3_SB(sb)->s_es->s_volume_name, label,
+ sizeof(EXT3_SB(sb)->s_es->s_volume_name));
+
+ err = ext3_journal_dirty_metadata(handle, EXT3_SB(sb)->s_sbh);
+
+out:
+ ext3_journal_stop(handle);
+
+ return(err);
+}
+
+static char *fsfilt_ext3_uuid(struct super_block *sb)
+{
+ return EXT3_SB(sb)->s_es->s_uuid;
+}
+
+#ifdef HAVE_DISK_INODE_VERSION
+
+static __u64 get_i_version(struct inode *inode)
+{
+ return EXT3_I(inode)->i_fs_version;
+}
+
+static void set_i_version(struct inode *inode, __u64 new_version)
+{
+ (EXT3_I(inode))->i_fs_version = new_version;
+}
+
+/*
+ * Get the 64-bit version for an inode.
+ */
+static __u64 fsfilt_ext3_get_version(struct inode *inode)
+{
+ CDEBUG(D_INFO, "Get version "LPX64" for inode %lu\n",
+ get_i_version(inode), inode->i_ino);
+ return get_i_version(inode);
+}
+
+/*
+ * Set the 64-bit version and return the old version.
+ */
+static __u64 fsfilt_ext3_set_version(struct inode *inode, __u64 new_version)
+{
+ __u64 old_version = get_i_version(inode);
+
+ CDEBUG(D_INFO, "Set version "LPX64" (old "LPX64") for inode %lu\n",
+ new_version, old_version, inode->i_ino);
+ set_i_version(inode, new_version);
+ /* version is set after all inode operations are finished, so we should
+ * mark it dirty here */
+ inode->i_sb->s_op->dirty_inode(inode);
+ return old_version;
+}
+
+#endif
/*
* We don't currently need any additional blocks for rmdir and
* the inode (which we will be changing anyways as part of this
* transaction).
*/
-static void *fsfilt_ext3_start(struct inode *inode, int op, void *desc_private)
+static void *fsfilt_ext3_start(struct inode *inode, int op, void *desc_private,
+ int logs)
{
- /* For updates to the last recieved file */
- int nblocks = EXT3_DATA_TRANS_BLOCKS;
+ /* For updates to the last received file */
+ int nblocks = FSFILT_SINGLEDATA_TRANS_BLOCKS(inode->i_sb);
+ journal_t *journal;
void *handle;
if (current->journal_info) {
}
switch(op) {
- case FSFILT_OP_CREATE_LOG:
- nblocks += EXT3_INDEX_EXTRA_TRANS_BLOCKS+EXT3_DATA_TRANS_BLOCKS;
- op = FSFILT_OP_CREATE;
- break;
- case FSFILT_OP_UNLINK_LOG:
- nblocks += EXT3_INDEX_EXTRA_TRANS_BLOCKS+EXT3_DATA_TRANS_BLOCKS;
- op = FSFILT_OP_UNLINK;
- break;
- }
-
- switch(op) {
case FSFILT_OP_RMDIR:
case FSFILT_OP_UNLINK:
- nblocks += EXT3_DELETE_TRANS_BLOCKS;
+ /* delete one file + create/update logs for each stripe */
+ nblocks += FSFILT_DELETE_TRANS_BLOCKS(inode->i_sb);
+ nblocks += (EXT3_INDEX_EXTRA_TRANS_BLOCKS +
+ FSFILT_SINGLEDATA_TRANS_BLOCKS(inode->i_sb)) * logs;
break;
case FSFILT_OP_RENAME:
/* modify additional directory */
- nblocks += EXT3_DATA_TRANS_BLOCKS;
+ nblocks += FSFILT_SINGLEDATA_TRANS_BLOCKS(inode->i_sb);
/* no break */
case FSFILT_OP_SYMLINK:
/* additional block + block bitmap + GDT for long symlink */
nblocks += 3;
/* no break */
- case FSFILT_OP_CREATE:
+ case FSFILT_OP_CREATE: {
+#if defined(EXT3_EXTENTS_FL) && defined(EXT3_INDEX_FL) && !defined(HAVE_EXT4_LDISKFS)
+ static int warned;
+ if (!warned) {
+ if (!test_opt(inode->i_sb, EXTENTS)) {
+ warned = 1;
+ } else if (((EXT3_I(inode)->i_flags &
+ cpu_to_le32(EXT3_EXTENTS_FL | EXT3_INDEX_FL)) ==
+ cpu_to_le32(EXT3_EXTENTS_FL | EXT3_INDEX_FL))) {
+ CWARN("extent-mapped directory found with "
+ "ext3-based ldiskfs - contact "
+ "http://bugs.whamcloud.com/\n");
+ warned = 1;
+ }
+ }
+#endif
+ /* no break */
+ }
case FSFILT_OP_MKDIR:
case FSFILT_OP_MKNOD:
/* modify one inode + block bitmap + GDT */
/* no break */
case FSFILT_OP_LINK:
/* modify parent directory */
- nblocks += EXT3_INDEX_EXTRA_TRANS_BLOCKS+EXT3_DATA_TRANS_BLOCKS;
+ nblocks += EXT3_INDEX_EXTRA_TRANS_BLOCKS +
+ FSFILT_DATA_TRANS_BLOCKS(inode->i_sb);
+ /* create/update logs for each stripe */
+ nblocks += (EXT3_INDEX_EXTRA_TRANS_BLOCKS +
+ FSFILT_SINGLEDATA_TRANS_BLOCKS(inode->i_sb)) * logs;
break;
case FSFILT_OP_SETATTR:
/* Setattr on inode */
nblocks += 1;
+ nblocks += EXT3_INDEX_EXTRA_TRANS_BLOCKS +
+ FSFILT_DATA_TRANS_BLOCKS(inode->i_sb);
+ /* quota chown log for each stripe */
+ nblocks += (EXT3_INDEX_EXTRA_TRANS_BLOCKS +
+ FSFILT_SINGLEDATA_TRANS_BLOCKS(inode->i_sb)) * logs;
break;
- case FSFILT_OP_CANCEL_UNLINK_LOG:
+ case FSFILT_OP_CANCEL_UNLINK:
+ /* blocks for log header bitmap update OR
+ * blocks for catalog header bitmap update + unlink of logs */
nblocks = (LLOG_CHUNK_SIZE >> inode->i_blkbits) +
- EXT3_DELETE_TRANS_BLOCKS;
+ FSFILT_DELETE_TRANS_BLOCKS(inode->i_sb) * logs;
break;
default: CERROR("unknown transaction start op %d\n", op);
- LBUG();
+ LBUG();
}
LASSERT(current->journal_info == desc_private);
+ journal = EXT3_SB(inode->i_sb)->s_journal;
+ if (nblocks > journal->j_max_transaction_buffers) {
+ CWARN("too many credits %d for op %ux%u using %d instead\n",
+ nblocks, op, logs, journal->j_max_transaction_buffers);
+ nblocks = journal->j_max_transaction_buffers;
+ }
journal_start:
- lock_kernel();
- handle = journal_start(EXT3_JOURNAL(inode), nblocks);
- unlock_kernel();
+ LASSERTF(nblocks > 0, "can't start %d credit transaction\n", nblocks);
+ handle = ext3_journal_start(inode, nblocks);
if (!IS_ERR(handle))
LASSERT(current->journal_info == handle);
+ else
+ CERROR("error starting handle for op %u (%u credits): rc %ld\n",
+ op, nblocks, PTR_ERR(handle));
return handle;
}
{
struct super_block *sb = fso->fso_dentry->d_inode->i_sb;
__u64 next_indir;
- const int blockpp = 1 << (PAGE_CACHE_SHIFT - sb->s_blocksize_bits);
+ const int blockpp = 1 << (CFS_PAGE_SHIFT - sb->s_blocksize_bits);
int nbitmaps = 0, ngdblocks;
int needed = objcount + 1; /* inodes + superblock */
int i, j;
needed += nbitmaps + ngdblocks;
/* last_rcvd update */
- needed += EXT3_DATA_TRANS_BLOCKS;
+ needed += FSFILT_DATA_TRANS_BLOCKS(sb);
-#if defined(CONFIG_QUOTA) && !defined(__x86_64__) /* XXX */
+#if defined(CONFIG_QUOTA)
/* We assume that there will be 1 bit set in s_dquot.flags for each
* quota file that is active. This is at least true for now.
*/
- needed += hweight32(sb_any_quota_enabled(sb)) *
- EXT3_SINGLEDATA_TRANS_BLOCKS;
+ needed += hweight32(ll_sb_any_quota_active(sb)) *
+ FSFILT_SINGLEDATA_TRANS_BLOCKS(sb);
#endif
return needed;
*/
static void *fsfilt_ext3_brw_start(int objcount, struct fsfilt_objinfo *fso,
int niocount, struct niobuf_local *nb,
- void *desc_private)
+ void *desc_private, int logs)
{
journal_t *journal;
handle_t *handle;
needed = journal->j_max_transaction_buffers;
}
- lock_kernel();
- handle = journal_start(journal, needed);
- unlock_kernel();
+ LASSERTF(needed > 0, "can't start %d credit transaction\n", needed);
+ handle = ext3_journal_start(fso->fso_dentry->d_inode, needed);
if (IS_ERR(handle)) {
CERROR("can't get handle for %d credits: rc = %ld\n", needed,
PTR_ERR(handle));
RETURN(handle);
}
+static int fsfilt_ext3_extend(struct inode *inode, unsigned int nblocks,void *h)
+{
+ handle_t *handle = h;
+
+ /* fsfilt_extend called with nblocks = 0 for testing in special cases */
+ if (nblocks == 0) {
+ handle->h_buffer_credits = 0;
+ CWARN("setting credits of handle %p to zero by request\n", h);
+ }
+
+ if (handle->h_buffer_credits > nblocks)
+ return 0;
+ if (ext3_journal_extend(handle, nblocks) == 0)
+ return 0;
+
+ ext3_mark_inode_dirty(handle, inode);
+ return ext3_journal_restart(handle, nblocks);
+}
+
static int fsfilt_ext3_commit(struct inode *inode, void *h, int force_sync)
{
int rc;
if (force_sync)
handle->h_sync = 1; /* recovery likes this */
- lock_kernel();
- rc = journal_stop(handle);
- unlock_kernel();
+ rc = ext3_journal_stop(handle);
- // LASSERT(current->journal_info == NULL);
return rc;
}
static int fsfilt_ext3_commit_async(struct inode *inode, void *h,
- void **wait_handle)
+ void **wait_handle)
{
+ unsigned long tid;
transaction_t *transaction;
- unsigned long tid, rtid;
handle_t *handle = h;
journal_t *journal;
int rc;
LASSERT(current->journal_info == handle);
- lock_kernel();
transaction = handle->h_transaction;
journal = transaction->t_journal;
tid = transaction->t_tid;
/* we don't want to be blocked */
handle->h_sync = 0;
- rc = journal_stop(handle);
+ rc = ext3_journal_stop(handle);
if (rc) {
CERROR("error while stopping transaction: %d\n", rc);
- unlock_kernel();
return rc;
}
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
- rtid = log_start_commit(journal, transaction);
- if (rtid != tid)
- CERROR("strange race: %lu != %lu\n",
- (unsigned long) tid, (unsigned long) rtid);
-#else
- log_start_commit(journal, transaction->t_tid);
-#endif
- unlock_kernel();
+ fsfilt_log_start_commit(journal, tid);
*wait_handle = (void *) tid;
CDEBUG(D_INODE, "commit async: %lu\n", (unsigned long) tid);
static int fsfilt_ext3_commit_wait(struct inode *inode, void *h)
{
+ journal_t *journal = EXT3_JOURNAL(inode);
tid_t tid = (tid_t)(long)h;
CDEBUG(D_INODE, "commit wait: %lu\n", (unsigned long) tid);
- if (is_journal_aborted(EXT3_JOURNAL(inode)))
+ if (unlikely(is_journal_aborted(journal)))
return -EIO;
- log_wait_commit(EXT3_JOURNAL(inode), tid);
+ fsfilt_log_wait_commit(EXT3_JOURNAL(inode), tid);
+ if (unlikely(is_journal_aborted(journal)))
+ return -EIO;
return 0;
}
struct iattr *iattr, int do_trunc)
{
struct inode *inode = dentry->d_inode;
- int rc;
-
- lock_kernel();
+ int rc = 0;
- /* A _really_ horrible hack to avoid removing the data stored
- * in the block pointers; this is really the "small" stripe MD data.
- * We can avoid further hackery by virtue of the MDS file size being
- * zero all the time (which doesn't invoke block truncate at unlink
- * time), so we assert we never change the MDS file size from zero. */
+ /* Avoid marking the inode dirty on the superblock list unnecessarily.
+ * We are already writing the inode to disk as part of this
+ * transaction and want to avoid a lot of extra inode writeout
+ * later on. b=9828 */
if (iattr->ia_valid & ATTR_SIZE && !do_trunc) {
/* ATTR_SIZE would invoke truncate: clear it */
iattr->ia_valid &= ~ATTR_SIZE;
- EXT3_I(inode)->i_disksize = inode->i_size = iattr->ia_size;
-
- /* make sure _something_ gets set - so new inode
- * goes to disk (probably won't work over XFS */
- if (!(iattr->ia_valid & (ATTR_MODE | ATTR_MTIME | ATTR_CTIME))){
- iattr->ia_valid |= ATTR_MODE;
- iattr->ia_mode = inode->i_mode;
+ EXT3_I(inode)->i_disksize = iattr->ia_size;
+ i_size_write(inode, iattr->ia_size);
+
+ if (iattr->ia_valid & ATTR_UID)
+ inode->i_uid = iattr->ia_uid;
+ if (iattr->ia_valid & ATTR_GID)
+ inode->i_gid = iattr->ia_gid;
+ if (iattr->ia_valid & ATTR_ATIME)
+ inode->i_atime = iattr->ia_atime;
+ if (iattr->ia_valid & ATTR_MTIME)
+ inode->i_mtime = iattr->ia_mtime;
+ if (iattr->ia_valid & ATTR_CTIME)
+ inode->i_ctime = iattr->ia_ctime;
+ if (iattr->ia_valid & ATTR_MODE) {
+ inode->i_mode = iattr->ia_mode;
+
+ if (!cfs_curproc_is_in_groups(inode->i_gid) &&
+ !cfs_capable(CFS_CAP_FSETID))
+ inode->i_mode &= ~S_ISGID;
}
+
+ inode->i_sb->s_op->dirty_inode(inode);
+
+ goto out;
}
/* Don't allow setattr to change file type */
- iattr->ia_mode = (inode->i_mode & S_IFMT)|(iattr->ia_mode & ~S_IFMT);
+ if (iattr->ia_valid & ATTR_MODE)
+ iattr->ia_mode = (inode->i_mode & S_IFMT) |
+ (iattr->ia_mode & ~S_IFMT);
/* We set these flags on the client, but have already checked perms
* so don't confuse inode_change_ok. */
rc = inode_setattr(inode, iattr);
}
- unlock_kernel();
-
- return rc;
+ out:
+ RETURN(rc);
}
-static int fsfilt_ext3_iocontrol(struct inode * inode, struct file *file,
+static int fsfilt_ext3_iocontrol(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
int rc = 0;
ENTRY;
+ /* FIXME: Can't do this because of nested transaction deadlock */
+ if (cmd == EXT3_IOC_SETFLAGS) {
+ /* We can't enable data journaling on OST objects, because
+ * this forces the transaction to be closed in order to
+ * flush the journal, but the caller will already have a
+ * compound transaction open to update the last_rcvd file,
+ * and this thread would deadlock trying to set the flag. */
+ if ((*(int *)arg) & EXT3_JOURNAL_DATA_FL) {
+ CERROR("can't set data journal flag on file\n");
+ RETURN(-EPERM);
+ }
+ /* Because the MDS does not see the EXTENTS_FL set on the
+ * OST objects, mask this flag into all set flags. It is
+ * not legal to clear this flag in any case, so we are not
+ * changing the functionality by doing this. b=22911 */
+ *(int *)arg |= EXT3_I(inode)->i_flags & EXT3_EXTENTS_FL;
+ }
+
+#ifdef HAVE_EXT4_LDISKFS
+ /* ext4_ioctl does not have a inode argument */
+ if (inode->i_fop->unlocked_ioctl)
+ rc = inode->i_fop->unlocked_ioctl(file, cmd, arg);
+#else
if (inode->i_fop->ioctl)
rc = inode->i_fop->ioctl(inode, file, cmd, arg);
+#endif
else
RETURN(-ENOTTY);
RETURN(rc);
}
-#undef INLINE_EA
-#undef OLD_EA
static int fsfilt_ext3_set_md(struct inode *inode, void *handle,
- void *lmm, int lmm_size)
+ void *lmm, int lmm_size, const char *name)
{
- int rc, old_ea = 0;
-
-#ifdef INLINE_EA /* can go away before 1.0 - just for testing bug 2097 now */
- /* Nasty hack city - store stripe MD data in the block pointers if
- * it will fit, because putting it in an EA currently kills the MDS
- * performance. We'll fix this with "fast EAs" in the future.
- */
- if (inode->i_blocks == 0 && lmm_size <= sizeof(EXT3_I(inode)->i_data) -
- sizeof(EXT3_I(inode)->i_data[0])) {
- unsigned old_size = EXT3_I(inode)->i_data[0];
- if (old_size != 0) {
- LASSERT(old_size < sizeof(EXT3_I(inode)->i_data));
- CERROR("setting EA on %lu/%u again... interesting\n",
- inode->i_ino, inode->i_generation);
- }
+ int rc;
- EXT3_I(inode)->i_data[0] = cpu_to_le32(lmm_size);
- memcpy(&EXT3_I(inode)->i_data[1], lmm, lmm_size);
- mark_inode_dirty(inode);
- return 0;
- }
-#endif
-#ifdef OLD_EA
- /* keep this when we get rid of OLD_EA (too noisy during conversion) */
- if (EXT3_I(inode)->i_file_acl /* || large inode EA flag */) {
- CWARN("setting EA on %lu/%u again... interesting\n",
- inode->i_ino, inode->i_generation);
- old_ea = 1;
- }
+ LASSERT(TRYLOCK_INODE_MUTEX(inode) == 0);
- lock_kernel();
- /* this can go away before 1.0. For bug 2097 testing only. */
- rc = ext3_xattr_set_handle(handle, inode, EXT3_XATTR_INDEX_LUSTRE,
- XATTR_LUSTRE_MDS_OBJID, lmm, lmm_size, 0);
-#else
- lock_kernel();
rc = ext3_xattr_set_handle(handle, inode, EXT3_XATTR_INDEX_TRUSTED,
- XATTR_LUSTRE_MDS_LOV_EA, lmm, lmm_size, 0);
-
- /* This tries to delete the old-format LOV EA, but only as long as we
- * have successfully saved the new-format LOV EA (we can always try
- * the conversion again the next time the file is accessed). It is
- * possible (although unlikely) that the new-format LOV EA couldn't be
- * saved because it ran out of space but we would need a file striped
- * over least 123 OSTs before the two EAs filled a 4kB block.
- *
- * This can be removed when all filesystems have converted to the
- * new EA format, but otherwise adds little if any overhead. If we
- * wanted backward compatibility for existing files, we could keep
- * the old EA around for a while but we'd have to clean it up later. */
- if (rc >= 0 && old_ea) {
- int err = ext3_xattr_set_handle(handle, inode,
- EXT3_XATTR_INDEX_LUSTRE,
- XATTR_LUSTRE_MDS_OBJID,
- NULL, 0, 0);
- if (err)
- CERROR("error deleting old LOV EA on %lu/%u: rc %d\n",
- inode->i_ino, inode->i_generation, err);
- }
-#endif
- unlock_kernel();
+ name, lmm, lmm_size, XATTR_NO_CTIME);
- if (rc)
+
+ if (rc && rc != -EROFS)
CERROR("error adding MD data to inode %lu: rc = %d\n",
inode->i_ino, rc);
return rc;
}
-/* Must be called with i_sem held */
-static int fsfilt_ext3_get_md(struct inode *inode, void *lmm, int lmm_size)
+/* Must be called with i_mutex held */
+static int fsfilt_ext3_get_md(struct inode *inode, void *lmm, int lmm_size,
+ const char *name)
{
int rc;
- LASSERT(down_trylock(&inode->i_sem) != 0);
- lock_kernel();
- /* Keep support for reading "inline EAs" until we convert
- * users over to new format entirely. See bug 841/2097. */
- if (inode->i_blocks == 0 && EXT3_I(inode)->i_data[0]) {
- unsigned size = le32_to_cpu(EXT3_I(inode)->i_data[0]);
- void *handle;
-
- LASSERT(size < sizeof(EXT3_I(inode)->i_data));
- if (lmm) {
- if (size > lmm_size) {
- CERROR("inline EA on %lu/%u bad size %u > %u\n",
- inode->i_ino, inode->i_generation,
- size, lmm_size);
- return -ERANGE;
- }
- memcpy(lmm, &EXT3_I(inode)->i_data[1], size);
- }
-
-#ifndef INLINE_EA
- /* migrate LOV EA data to external block - keep same format */
- CWARN("DEBUG: migrate inline EA for inode %lu/%u to block\n",
- inode->i_ino, inode->i_generation);
-
- handle = journal_start(EXT3_JOURNAL(inode),
- EXT3_XATTR_TRANS_BLOCKS);
- if (!IS_ERR(handle)) {
- int err;
- rc = fsfilt_ext3_set_md(inode, handle,
- &EXT3_I(inode)->i_data[1],size);
- if (rc == 0) {
- memset(EXT3_I(inode)->i_data, 0,
- sizeof(EXT3_I(inode)->i_data));
- mark_inode_dirty(inode);
- }
- err = journal_stop(handle);
- if (err && rc == 0)
- rc = err;
- } else {
- rc = PTR_ERR(handle);
- }
-#endif
- unlock_kernel();
- return size;
- }
+ LASSERT(TRYLOCK_INODE_MUTEX(inode) == 0);
rc = ext3_xattr_get(inode, EXT3_XATTR_INDEX_TRUSTED,
- XATTR_LUSTRE_MDS_LOV_EA, lmm, lmm_size);
- /* try old EA type if new one failed - MDS will convert it for us */
- if (rc == -ENODATA) {
- CDEBUG(D_INFO,"failed new LOV EA %d/%s from inode %lu: rc %d\n",
- EXT3_XATTR_INDEX_TRUSTED, XATTR_LUSTRE_MDS_LOV_EA,
- inode->i_ino, rc);
-
- rc = ext3_xattr_get(inode, EXT3_XATTR_INDEX_LUSTRE,
- XATTR_LUSTRE_MDS_OBJID, lmm, lmm_size);
- }
- unlock_kernel();
+ name, lmm, lmm_size);
/* This gives us the MD size */
if (lmm == NULL)
if (rc < 0) {
CDEBUG(D_INFO, "error getting EA %d/%s from inode %lu: rc %d\n",
- EXT3_XATTR_INDEX_LUSTRE, XATTR_LUSTRE_MDS_OBJID,
+ EXT3_XATTR_INDEX_TRUSTED, name,
inode->i_ino, rc);
memset(lmm, 0, lmm_size);
return (rc == -ENODATA) ? 0 : rc;
return rc;
}
+static int fsfilt_ext3_send_bio(int rw, struct inode *inode, struct bio *bio)
+{
+ submit_bio(rw, bio);
+ return 0;
+}
+
static ssize_t fsfilt_ext3_readpage(struct file *file, char *buf, size_t count,
loff_t *off)
{
const int blkbits = inode->i_sb->s_blocksize_bits;
const int blksize = inode->i_sb->s_blocksize;
- CDEBUG(D_EXT2, "reading "LPSZ" at dir %lu+%llu\n",
- count, inode->i_ino, *off);
+ CDEBUG(D_EXT2, "reading %lu at dir %lu+%llu\n",
+ (unsigned long)count, inode->i_ino, *off);
while (count > 0) {
struct buffer_head *bh;
bh = NULL;
- if (*off < inode->i_size) {
+ if (*off < i_size_read(inode)) {
int err = 0;
bh = ext3_bread(NULL, inode, *off >> blkbits,
CDEBUG(D_EXT2, "fake %u@%llu\n", blksize, *off);
memset(fake, 0, sizeof(*fake));
- fake->rec_len = cpu_to_le32(blksize);
+ fake->rec_len = cpu_to_le16(blksize);
}
count -= blksize;
buf += blksize;
fcb->cb_func(fcb->cb_obd, fcb->cb_last_rcvd, fcb->cb_data, error);
OBD_SLAB_FREE(fcb, fcb_cache, sizeof *fcb);
- atomic_dec(&fcb_cache_count);
}
static int fsfilt_ext3_add_journal_cb(struct obd_device *obd, __u64 last_rcvd,
{
struct fsfilt_cb_data *fcb;
- OBD_SLAB_ALLOC(fcb, fcb_cache, GFP_NOFS, sizeof *fcb);
+ OBD_SLAB_ALLOC_PTR_GFP(fcb, fcb_cache, CFS_ALLOC_IO);
if (fcb == NULL)
RETURN(-ENOMEM);
- atomic_inc(&fcb_cache_count);
fcb->cb_func = cb_func;
fcb->cb_obd = obd;
fcb->cb_last_rcvd = last_rcvd;
fcb->cb_data = cb_data;
CDEBUG(D_EXT2, "set callback for last_rcvd: "LPD64"\n", last_rcvd);
- lock_kernel();
- journal_callback_set(handle, fsfilt_ext3_cb_func,
- (struct journal_callback *)fcb);
- unlock_kernel();
+ fsfilt_journal_callback_set(handle, fsfilt_ext3_cb_func,
+ (struct journal_callback *)fcb);
return 0;
}
-/*
- * We need to hack the return value for the free inode counts because
- * the current EA code requires one filesystem block per inode with EAs,
- * so it is possible to run out of blocks before we run out of inodes.
- *
- * This can be removed when the ext3 EA code is fixed.
- */
static int fsfilt_ext3_statfs(struct super_block *sb, struct obd_statfs *osfs)
{
struct kstatfs sfs;
int rc;
memset(&sfs, 0, sizeof(sfs));
-
- rc = sb->s_op->statfs(sb, &sfs);
-
- if (!rc && sfs.f_bfree < sfs.f_ffree) {
- sfs.f_files = (sfs.f_files - sfs.f_ffree) + sfs.f_bfree;
- sfs.f_ffree = sfs.f_bfree;
- }
-
+ rc = ll_do_statfs(sb, &sfs);
statfs_pack(osfs, &sfs);
return rc;
}
return ext3_force_commit(sb);
}
-extern int ext3_map_inode_page(struct inode *inode, struct page *page,
- unsigned long *blocks, int *created, int create);
-int fsfilt_ext3_map_inode_page(struct inode *inode, struct page *page,
- unsigned long *blocks, int *created, int create)
+#ifndef EXT3_EXTENTS_FL
+#define EXT3_EXTENTS_FL 0x00080000 /* Inode uses extents */
+#endif
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17))
+# define fsfilt_up_truncate_sem(inode) up(&LDISKFS_I(inode)->truncate_sem);
+# define fsfilt_down_truncate_sem(inode) down(&LDISKFS_I(inode)->truncate_sem);
+#else
+# ifdef HAVE_EXT4_LDISKFS
+# ifdef WALK_SPACE_HAS_DATA_SEM /* We only use it in fsfilt_map_nblocks() for now */
+# define fsfilt_up_truncate_sem(inode) do{ }while(0)
+# define fsfilt_down_truncate_sem(inode) do{ }while(0)
+# else
+# define fsfilt_up_truncate_sem(inode) up_write((&EXT4_I(inode)->i_data_sem))
+# define fsfilt_down_truncate_sem(inode) down_write((&EXT4_I(inode)->i_data_sem))
+# endif
+# else
+# define fsfilt_up_truncate_sem(inode) mutex_unlock(&EXT3_I(inode)->truncate_mutex)
+# define fsfilt_down_truncate_sem(inode) mutex_lock(&EXT3_I(inode)->truncate_mutex)
+# endif
+#endif
+
+#ifndef EXT_ASSERT
+#define EXT_ASSERT(cond) BUG_ON(!(cond))
+#endif
+
+#ifdef EXT3_EXT_HAS_NO_TREE
+/* for kernels 2.6.18 and later */
+#ifdef HAVE_EXT4_LDISKFS
+#define EXT_GENERATION(inode) (EXT4_I(inode)->i_ext_generation)
+#else
+#define EXT_GENERATION(inode) ext_generation(inode)
+#endif
+#define ext3_ext_base inode
+#define ext3_ext_base2inode(inode) (inode)
+#define EXT_DEPTH(inode) ext_depth(inode)
+#define fsfilt_ext3_ext_walk_space(inode, block, num, cb, cbdata) \
+ ext3_ext_walk_space(inode, block, num, cb, cbdata);
+#else
+#define ext3_ext_base ext3_extents_tree
+#define ext3_ext_base2inode(tree) (tree->inode)
+#define fsfilt_ext3_ext_walk_space(tree, block, num, cb, cbdata) \
+ ext3_ext_walk_space(tree, block, num, cb);
+#endif
+
+#ifdef EXT_INSERT_EXTENT_WITH_5ARGS
+#define fsfilt_ext3_ext_insert_extent(handle, inode, path, newext, flag) \
+ ext3_ext_insert_extent(handle, inode, path, newext, flag)
+#else
+#define fsfilt_ext3_ext_insert_extent(handle, inode, path, newext, flag) \
+ ext3_ext_insert_extent(handle, inode, path, newext)
+#endif
+
+#include <linux/lustre_version.h>
+
+struct bpointers {
+ unsigned long *blocks;
+ int *created;
+ unsigned long start;
+ int num;
+ int init_num;
+ int create;
+};
+
+static long ext3_ext_find_goal(struct inode *inode, struct ext3_ext_path *path,
+ unsigned long block, int *aflags)
{
- return ext3_map_inode_page(inode, page, blocks, created, create);
+ struct ext3_inode_info *ei = EXT3_I(inode);
+ unsigned long bg_start;
+ unsigned long colour;
+ int depth;
+
+ if (path) {
+ struct ext3_extent *ex;
+ depth = path->p_depth;
+
+ /* try to predict block placement */
+ if ((ex = path[depth].p_ext))
+ return ext_pblock(ex) + (block - le32_to_cpu(ex->ee_block));
+
+ /* it looks index is empty
+ * try to find starting from index itself */
+ if (path[depth].p_bh)
+ return path[depth].p_bh->b_blocknr;
+ }
+
+ /* OK. use inode's group */
+ bg_start = (ei->i_block_group * EXT3_BLOCKS_PER_GROUP(inode->i_sb)) +
+ le32_to_cpu(EXT3_SB(inode->i_sb)->s_es->s_first_data_block);
+ colour = (current->pid % 16) *
+ (EXT3_BLOCKS_PER_GROUP(inode->i_sb) / 16);
+ return bg_start + colour + block;
}
-extern int ext3_prep_san_write(struct inode *inode, long *blocks,
- int nblocks, loff_t newsize);
-static int fsfilt_ext3_prep_san_write(struct inode *inode, long *blocks,
- int nblocks, loff_t newsize)
+#define ll_unmap_underlying_metadata(sb, blocknr) \
+ unmap_underlying_metadata((sb)->s_bdev, blocknr)
+
+#ifndef EXT3_MB_HINT_GROUP_ALLOC
+static unsigned long new_blocks(handle_t *handle, struct ext3_ext_base *base,
+ struct ext3_ext_path *path, unsigned long block,
+ unsigned long *count, int *err)
+{
+ unsigned long pblock, goal;
+ int aflags = 0;
+ struct inode *inode = ext3_ext_base2inode(base);
+
+ goal = ext3_ext_find_goal(inode, path, block, &aflags);
+ aflags |= 2; /* block have been already reserved */
+ pblock = ext3_mb_new_blocks(handle, inode, goal, count, aflags, err);
+ return pblock;
+
+}
+#else
+static unsigned long new_blocks(handle_t *handle, struct ext3_ext_base *base,
+ struct ext3_ext_path *path, unsigned long block,
+ unsigned long *count, int *err)
{
- return ext3_prep_san_write(inode, blocks, nblocks, newsize);
+ struct inode *inode = ext3_ext_base2inode(base);
+ struct ext3_allocation_request ar;
+ unsigned long pblock;
+ int aflags;
+
+ /* find neighbour allocated blocks */
+ ar.lleft = block;
+ *err = ext3_ext_search_left(base, path, &ar.lleft, &ar.pleft);
+ if (*err)
+ return 0;
+ ar.lright = block;
+ *err = ext3_ext_search_right(base, path, &ar.lright, &ar.pright);
+ if (*err)
+ return 0;
+
+ /* allocate new block */
+ ar.goal = ext3_ext_find_goal(inode, path, block, &aflags);
+ ar.inode = inode;
+ ar.logical = block;
+ ar.len = *count;
+ ar.flags = EXT3_MB_HINT_DATA;
+ pblock = ext3_mb_new_blocks(handle, &ar, err);
+ *count = ar.len;
+ return pblock;
}
+#endif
-static int fsfilt_ext3_read_record(struct file * file, void *buf,
- int size, loff_t *offs)
+#ifdef EXT3_EXT_HAS_NO_TREE
+static int ext3_ext_new_extent_cb(struct ext3_ext_base *base,
+ struct ext3_ext_path *path,
+ struct ext3_ext_cache *cex,
+#ifdef HAVE_EXT_PREPARE_CB_EXTENT
+ struct ext3_extent *ex,
+#endif
+ void *cbdata)
{
- struct inode *inode = file->f_dentry->d_inode;
- unsigned long block;
- struct buffer_head *bh;
- int err, blocksize, csize, boffs;
+ struct bpointers *bp = cbdata;
+#else
+static int ext3_ext_new_extent_cb(struct ext3_ext_base *base,
+ struct ext3_ext_path *path,
+ struct ext3_ext_cache *cex
+#ifdef HAVE_EXT_PREPARE_CB_EXTENT
+ , struct ext3_extent *ex
+#endif
+ )
+{
+ struct bpointers *bp = base->private;
+#endif
+ struct inode *inode = ext3_ext_base2inode(base);
+ struct ext3_extent nex;
+#if defined(HAVE_EXT4_LDISKFS) && defined(WALK_SPACE_HAS_DATA_SEM)
+ struct ext4_ext_path *tmppath = NULL;
+ struct ext4_extent *tmpex;
+#endif
+ unsigned long pblock;
+ unsigned long tgen;
+ int err, i, depth;
+ unsigned long count;
+ handle_t *handle;
- /* prevent reading after eof */
- lock_kernel();
- if (inode->i_size < *offs + size) {
- size = inode->i_size - *offs;
- unlock_kernel();
- if (size < 0) {
- CERROR("size %llu is too short for read %u@%llu\n",
- inode->i_size, size, *offs);
- return -EIO;
- } else if (size == 0) {
- return 0;
- }
- } else {
- unlock_kernel();
- }
+ i = depth = EXT_DEPTH(base);
+ EXT_ASSERT(i == path->p_depth);
+ EXT_ASSERT(path[i].p_hdr);
- blocksize = 1 << inode->i_blkbits;
+ if (cex->ec_type == EXT3_EXT_CACHE_EXTENT) {
+ err = EXT_CONTINUE;
+ goto map;
+ }
- while (size > 0) {
- block = *offs >> inode->i_blkbits;
- boffs = *offs & (blocksize - 1);
- csize = min(blocksize - boffs, size);
- bh = ext3_bread(NULL, inode, block, 0, &err);
- if (!bh) {
- CERROR("can't read block: %d\n", err);
- return err;
+ if (bp->create == 0) {
+ i = 0;
+ if (cex->ec_block < bp->start)
+ i = bp->start - cex->ec_block;
+ if (i >= cex->ec_len)
+ CERROR("nothing to do?! i = %d, e_num = %u\n",
+ i, cex->ec_len);
+ for (; i < cex->ec_len && bp->num; i++) {
+ *(bp->created) = 0;
+ bp->created++;
+ *(bp->blocks) = 0;
+ bp->blocks++;
+ bp->num--;
+ bp->start++;
}
- memcpy(buf, bh->b_data + boffs, csize);
- brelse(bh);
-
- *offs += csize;
- buf += csize;
- size -= csize;
+ return EXT_CONTINUE;
}
- return 0;
-}
-static int fsfilt_ext3_write_record(struct file *file, void *buf, int bufsize,
- loff_t *offs, int force_sync)
-{
- struct buffer_head *bh = NULL;
- unsigned long block;
- struct inode *inode = file->f_dentry->d_inode;
- loff_t old_size = inode->i_size, offset = *offs;
- loff_t new_size = inode->i_size;
- journal_t *journal;
- handle_t *handle;
- int err, block_count = 0, blocksize, size, boffs;
+ tgen = EXT_GENERATION(base);
+ count = ext3_ext_calc_credits_for_insert(base, path);
+ fsfilt_up_truncate_sem(inode);
- /* Determine how many transaction credits are needed */
- blocksize = 1 << inode->i_blkbits;
- block_count = (*offs & (blocksize - 1)) + bufsize;
- block_count = (block_count + blocksize - 1) >> inode->i_blkbits;
-
- journal = EXT3_SB(inode->i_sb)->s_journal;
- lock_kernel();
- handle = journal_start(journal,
- block_count * EXT3_DATA_TRANS_BLOCKS + 2);
- unlock_kernel();
+ handle = ext3_journal_start(inode, count+EXT3_ALLOC_NEEDED+1);
if (IS_ERR(handle)) {
- CERROR("can't start transaction\n");
+ fsfilt_down_truncate_sem(inode);
return PTR_ERR(handle);
}
- while (bufsize > 0) {
- if (bh != NULL)
- brelse(bh);
+ fsfilt_down_truncate_sem(inode);
+ if (tgen != EXT_GENERATION(base)) {
+ /* the tree has changed. so path can be invalid at moment */
+ ext3_journal_stop(handle);
+ return EXT_REPEAT;
+ }
- block = offset >> inode->i_blkbits;
- boffs = offset & (blocksize - 1);
- size = min(blocksize - boffs, bufsize);
- bh = ext3_bread(handle, inode, block, 1, &err);
- if (!bh) {
- CERROR("can't read/create block: %d\n", err);
- goto out;
- }
+#if defined(HAVE_EXT4_LDISKFS) && defined(WALK_SPACE_HAS_DATA_SEM)
+ /* In 2.6.32 kernel, ext4_ext_walk_space()'s callback func is not
+ * protected by i_data_sem, we need revalidate extent to be created */
+ down_write((&EXT4_I(inode)->i_data_sem));
+
+ /* validate extent, make sure the extent tree does not changed */
+ tmppath = ext4_ext_find_extent(inode, cex->ec_block, NULL);
+ if (IS_ERR(tmppath)) {
+ up_write(&EXT4_I(inode)->i_data_sem);
+ ext3_journal_stop(handle);
+ return PTR_ERR(tmppath);
+ }
+ tmpex = tmppath[depth].p_ext;
+ if (tmpex != ex) {
+ /* cex is invalid, try again */
+ ext4_ext_drop_refs(tmppath);
+ kfree(tmppath);
+ up_write(&EXT4_I(inode)->i_data_sem);
+ ext3_journal_stop(handle);
+ return EXT_REPEAT;
+ }
+#endif
- err = ext3_journal_get_write_access(handle, bh);
- if (err) {
- CERROR("journal_get_write_access() returned error %d\n",
+ count = cex->ec_len;
+ pblock = new_blocks(handle, base, path, cex->ec_block, &count, &err);
+ if (!pblock)
+ goto out;
+ EXT_ASSERT(count <= cex->ec_len);
+
+ /* insert new extent */
+ nex.ee_block = cpu_to_le32(cex->ec_block);
+ ext3_ext_store_pblock(&nex, pblock);
+ nex.ee_len = cpu_to_le16(count);
+ err = fsfilt_ext3_ext_insert_extent(handle, base, path, &nex, 0);
+ if (err) {
+ /* free data blocks we just allocated */
+ /* not a good idea to call discard here directly,
+ * but otherwise we'd need to call it every free() */
+#ifdef EXT3_MB_HINT_GROUP_ALLOC
+ ext3_mb_discard_inode_preallocations(inode);
+#endif
+ ext3_free_blocks(handle, inode, ext_pblock(&nex),
+ cpu_to_le16(nex.ee_len), 0);
+ goto out;
+ }
+
+ /*
+ * Putting len of the actual extent we just inserted,
+ * we are asking ext3_ext_walk_space() to continue
+ * scaning after that block
+ */
+ cex->ec_len = le16_to_cpu(nex.ee_len);
+ cex->ec_start = ext_pblock(&nex);
+ BUG_ON(le16_to_cpu(nex.ee_len) == 0);
+ BUG_ON(le32_to_cpu(nex.ee_block) != cex->ec_block);
+
+out:
+#if defined(HAVE_EXT4_LDISKFS) && defined(WALK_SPACE_HAS_DATA_SEM)
+ ext4_ext_drop_refs(tmppath);
+ kfree(tmppath);
+ up_write((&EXT4_I(inode)->i_data_sem));
+#endif
+ ext3_journal_stop(handle);
+map:
+ if (err >= 0) {
+ /* map blocks */
+ if (bp->num == 0) {
+ CERROR("hmm. why do we find this extent?\n");
+ CERROR("initial space: %lu:%u\n",
+ bp->start, bp->init_num);
+ CERROR("current extent: %u/%u/%llu %d\n",
+ cex->ec_block, cex->ec_len,
+ (unsigned long long)cex->ec_start,
+ cex->ec_type);
+ }
+ i = 0;
+ if (cex->ec_block < bp->start)
+ i = bp->start - cex->ec_block;
+ if (i >= cex->ec_len)
+ CERROR("nothing to do?! i = %d, e_num = %u\n",
+ i, cex->ec_len);
+ for (; i < cex->ec_len && bp->num; i++) {
+ *(bp->blocks) = cex->ec_start + i;
+ if (cex->ec_type == EXT3_EXT_CACHE_EXTENT) {
+ *(bp->created) = 0;
+ } else {
+ *(bp->created) = 1;
+ /* unmap any possible underlying metadata from
+ * the block device mapping. bug 6998. */
+ ll_unmap_underlying_metadata(inode->i_sb,
+ *(bp->blocks));
+ }
+ bp->created++;
+ bp->blocks++;
+ bp->num--;
+ bp->start++;
+ }
+ }
+ return err;
+}
+
+int fsfilt_map_nblocks(struct inode *inode, unsigned long block,
+ unsigned long num, unsigned long *blocks,
+ int *created, int create)
+{
+#ifdef EXT3_EXT_HAS_NO_TREE
+ struct ext3_ext_base *base = inode;
+#else
+ struct ext3_extents_tree tree;
+ struct ext3_ext_base *base = &tree;
+#endif
+ struct bpointers bp;
+ int err;
+
+ CDEBUG(D_OTHER, "blocks %lu-%lu requested for inode %u\n",
+ block, block + num - 1, (unsigned) inode->i_ino);
+
+#ifndef EXT3_EXT_HAS_NO_TREE
+ ext3_init_tree_desc(base, inode);
+ tree.private = &bp;
+#endif
+ bp.blocks = blocks;
+ bp.created = created;
+ bp.start = block;
+ bp.init_num = bp.num = num;
+ bp.create = create;
+
+ fsfilt_down_truncate_sem(inode);
+ err = fsfilt_ext3_ext_walk_space(base, block, num,
+ ext3_ext_new_extent_cb, &bp);
+ ext3_ext_invalidate_cache(base);
+ fsfilt_up_truncate_sem(inode);
+
+ return err;
+}
+
+int fsfilt_ext3_map_ext_inode_pages(struct inode *inode, struct page **page,
+ int pages, unsigned long *blocks,
+ int *created, int create)
+{
+ int blocks_per_page = CFS_PAGE_SIZE >> inode->i_blkbits;
+ int rc = 0, i = 0;
+ struct page *fp = NULL;
+ int clen = 0;
+
+ CDEBUG(D_OTHER, "inode %lu: map %d pages from %lu\n",
+ inode->i_ino, pages, (*page)->index);
+
+ /* pages are sorted already. so, we just have to find
+ * contig. space and process them properly */
+ while (i < pages) {
+ if (fp == NULL) {
+ /* start new extent */
+ fp = *page++;
+ clen = 1;
+ i++;
+ continue;
+ } else if (fp->index + clen == (*page)->index) {
+ /* continue the extent */
+ page++;
+ clen++;
+ i++;
+ continue;
+ }
+
+ /* process found extent */
+ rc = fsfilt_map_nblocks(inode, fp->index * blocks_per_page,
+ clen * blocks_per_page, blocks,
+ created, create);
+ if (rc)
+ GOTO(cleanup, rc);
+
+ /* look for next extent */
+ fp = NULL;
+ blocks += blocks_per_page * clen;
+ created += blocks_per_page * clen;
+ }
+
+ if (fp)
+ rc = fsfilt_map_nblocks(inode, fp->index * blocks_per_page,
+ clen * blocks_per_page, blocks,
+ created, create);
+cleanup:
+ return rc;
+}
+
+extern int ext3_map_inode_page(struct inode *inode, struct page *page,
+ unsigned long *blocks, int *created, int create);
+int fsfilt_ext3_map_bm_inode_pages(struct inode *inode, struct page **page,
+ int pages, unsigned long *blocks,
+ int *created, int create)
+{
+ int blocks_per_page = CFS_PAGE_SIZE >> inode->i_blkbits;
+ unsigned long *b;
+ int rc = 0, i, *cr;
+
+ for (i = 0, cr = created, b = blocks; i < pages; i++, page++) {
+ rc = ext3_map_inode_page(inode, *page, b, cr, create);
+ if (rc) {
+ CERROR("ino %lu, blk %lu cr %u create %d: rc %d\n",
+ inode->i_ino, *b, *cr, create, rc);
+ break;
+ }
+
+ b += blocks_per_page;
+ cr += blocks_per_page;
+ }
+ return rc;
+}
+
+int fsfilt_ext3_map_inode_pages(struct inode *inode, struct page **page,
+ int pages, unsigned long *blocks,
+ int *created, int create,
+ cfs_semaphore_t *optional_sem)
+{
+ int rc;
+
+ if (EXT3_I(inode)->i_flags & EXT3_EXTENTS_FL) {
+ rc = fsfilt_ext3_map_ext_inode_pages(inode, page, pages,
+ blocks, created, create);
+ return rc;
+ }
+ if (optional_sem != NULL)
+ cfs_down(optional_sem);
+ rc = fsfilt_ext3_map_bm_inode_pages(inode, page, pages, blocks,
+ created, create);
+ if (optional_sem != NULL)
+ cfs_up(optional_sem);
+
+ return rc;
+}
+
+int fsfilt_ext3_read(struct inode *inode, void *buf, int size, loff_t *offs)
+{
+ unsigned long block;
+ struct buffer_head *bh;
+ int err, blocksize, csize, boffs, osize = size;
+
+ /* prevent reading after eof */
+ cfs_lock_kernel();
+ if (i_size_read(inode) < *offs + size) {
+ size = i_size_read(inode) - *offs;
+ cfs_unlock_kernel();
+ if (size < 0) {
+ CDEBUG(D_EXT2, "size %llu is too short for read @%llu\n",
+ i_size_read(inode), *offs);
+ return -EBADR;
+ } else if (size == 0) {
+ return 0;
+ }
+ } else {
+ cfs_unlock_kernel();
+ }
+
+ blocksize = 1 << inode->i_blkbits;
+
+ while (size > 0) {
+ block = *offs >> inode->i_blkbits;
+ boffs = *offs & (blocksize - 1);
+ csize = min(blocksize - boffs, size);
+ bh = ext3_bread(NULL, inode, block, 0, &err);
+ if (!bh) {
+ CERROR("can't read block: %d\n", err);
+ return err;
+ }
+
+ memcpy(buf, bh->b_data + boffs, csize);
+ brelse(bh);
+
+ *offs += csize;
+ buf += csize;
+ size -= csize;
+ }
+ return osize;
+}
+EXPORT_SYMBOL(fsfilt_ext3_read);
+
+static int fsfilt_ext3_read_record(struct file * file, void *buf,
+ int size, loff_t *offs)
+{
+ int rc;
+ rc = fsfilt_ext3_read(file->f_dentry->d_inode, buf, size, offs);
+ if (rc > 0)
+ rc = 0;
+ return rc;
+}
+
+int fsfilt_ext3_write_handle(struct inode *inode, void *buf, int bufsize,
+ loff_t *offs, handle_t *handle)
+{
+ struct buffer_head *bh = NULL;
+ loff_t old_size = i_size_read(inode), offset = *offs;
+ loff_t new_size = i_size_read(inode);
+ unsigned long block;
+ int err = 0, blocksize = 1 << inode->i_blkbits, size, boffs;
+
+ while (bufsize > 0) {
+ if (bh != NULL)
+ brelse(bh);
+
+ block = offset >> inode->i_blkbits;
+ boffs = offset & (blocksize - 1);
+ size = min(blocksize - boffs, bufsize);
+ bh = ext3_bread(handle, inode, block, 1, &err);
+ if (!bh) {
+ CERROR("can't read/create block: %d\n", err);
+ break;
+ }
+
+ err = ext3_journal_get_write_access(handle, bh);
+ if (err) {
+ CERROR("journal_get_write_access() returned error %d\n",
err);
- goto out;
+ break;
}
LASSERT(bh->b_data + boffs + size <= bh->b_data + bh->b_size);
memcpy(bh->b_data + boffs, buf, size);
if (err) {
CERROR("journal_dirty_metadata() returned error %d\n",
err);
- goto out;
+ break;
}
if (offset + size > new_size)
new_size = offset + size;
bufsize -= size;
buf += size;
}
-
- if (force_sync)
- handle->h_sync = 1; /* recovery likes this */
-out:
if (bh)
brelse(bh);
/* correct in-core and on-disk sizes */
- if (new_size > inode->i_size) {
- lock_kernel();
- if (new_size > inode->i_size)
- inode->i_size = new_size;
- if (inode->i_size > EXT3_I(inode)->i_disksize)
- EXT3_I(inode)->i_disksize = inode->i_size;
- if (inode->i_size > old_size)
+ if (new_size > i_size_read(inode)) {
+ cfs_lock_kernel();
+ if (new_size > i_size_read(inode))
+ i_size_write(inode, new_size);
+ if (i_size_read(inode) > EXT3_I(inode)->i_disksize)
+ EXT3_I(inode)->i_disksize = i_size_read(inode);
+ if (i_size_read(inode) > old_size)
mark_inode_dirty(inode);
- unlock_kernel();
+ cfs_unlock_kernel();
}
- lock_kernel();
- journal_stop(handle);
- unlock_kernel();
-
if (err == 0)
*offs = offset;
return err;
}
+EXPORT_SYMBOL(fsfilt_ext3_write_handle);
+
+static int fsfilt_ext3_write_record(struct file *file, void *buf, int bufsize,
+ loff_t *offs, int force_sync)
+{
+ struct inode *inode = file->f_dentry->d_inode;
+ handle_t *handle;
+ int err, block_count = 0, blocksize;
+
+ /* Determine how many transaction credits are needed */
+ blocksize = 1 << inode->i_blkbits;
+ block_count = (*offs & (blocksize - 1)) + bufsize;
+ block_count = (block_count + blocksize - 1) >> inode->i_blkbits;
+
+ handle = ext3_journal_start(inode,
+ block_count * FSFILT_DATA_TRANS_BLOCKS(inode->i_sb) + 2);
+ if (IS_ERR(handle)) {
+ CERROR("can't start transaction for %d blocks (%d bytes)\n",
+ block_count * FSFILT_DATA_TRANS_BLOCKS(inode->i_sb) + 2, bufsize);
+ return PTR_ERR(handle);
+ }
+
+ err = fsfilt_ext3_write_handle(inode, buf, bufsize, offs, handle);
+
+ if (!err && force_sync)
+ handle->h_sync = 1; /* recovery likes this */
+
+ ext3_journal_stop(handle);
+
+ return err;
+}
static int fsfilt_ext3_setup(struct super_block *sb)
{
+#if ((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,6)) && \
+ defined(HAVE_QUOTA_SUPPORT)) || defined(S_PDIROPS)
+ struct ext3_sb_info *sbi = EXT3_SB(sb);
#if 0
- EXT3_SB(sb)->dx_lock = fsfilt_ext3_dx_lock;
- EXT3_SB(sb)->dx_unlock = fsfilt_ext3_dx_unlock;
+ sbi->dx_lock = fsfilt_ext3_dx_lock;
+ sbi->dx_unlock = fsfilt_ext3_dx_unlock;
+#endif
#endif
#ifdef S_PDIROPS
CWARN("Enabling PDIROPS\n");
- set_opt(EXT3_SB(sb)->s_mount_opt, PDIROPS);
+ set_opt(sbi->s_mount_opt, PDIROPS);
sb->s_flags |= S_PDIROPS;
#endif
+ if (!EXT3_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_DIR_INDEX))
+ CWARN("filesystem doesn't have dir_index feature enabled\n");
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,6)) && defined(HAVE_QUOTA_SUPPORT)
+ /* enable journaled quota support */
+ /* kfreed in ext3_put_super() */
+ sbi->s_qf_names[USRQUOTA] = kstrdup("lquota.user.reserved", GFP_KERNEL);
+ if (!sbi->s_qf_names[USRQUOTA])
+ return -ENOMEM;
+ sbi->s_qf_names[GRPQUOTA] = kstrdup("lquota.group.reserved", GFP_KERNEL);
+ if (!sbi->s_qf_names[GRPQUOTA]) {
+ kfree(sbi->s_qf_names[USRQUOTA]);
+ sbi->s_qf_names[USRQUOTA] = NULL;
+ return -ENOMEM;
+ }
+ sbi->s_jquota_fmt = QFMT_LUSTRE;
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,13))
+ set_opt(sbi->s_mount_opt, QUOTA);
+#endif
+#endif
+ return 0;
+}
+
+/* If fso is NULL, op is FSFILT operation, otherwise op is number of fso
+ objects. Logs is number of logfiles to update */
+static int fsfilt_ext3_get_op_len(int op, struct fsfilt_objinfo *fso, int logs)
+{
+ if ( !fso ) {
+ switch(op) {
+ case FSFILT_OP_CREATE:
+ /* directory leaf, index & indirect & EA*/
+ return 4 + 3 * logs;
+ case FSFILT_OP_UNLINK:
+ return 3 * logs;
+ }
+ } else {
+ int i;
+ int needed = 0;
+ struct super_block *sb = fso->fso_dentry->d_inode->i_sb;
+ int blockpp = 1 << (CFS_PAGE_SHIFT - sb->s_blocksize_bits);
+ int addrpp = EXT3_ADDR_PER_BLOCK(sb) * blockpp;
+ for (i = 0; i < op; i++, fso++) {
+ int nblocks = fso->fso_bufcnt * blockpp;
+ int ndindirect = min(nblocks, addrpp + 1);
+ int nindir = nblocks + ndindirect + 1;
+
+ needed += nindir;
+ }
+ return needed + 3 * logs;
+ }
+
+ return 0;
+}
+
+#ifdef HAVE_QUOTA_SUPPORT
+#define DQINFO_COPY(out, in) \
+do { \
+ Q_COPY(out, in, dqi_bgrace); \
+ Q_COPY(out, in, dqi_igrace); \
+ Q_COPY(out, in, dqi_flags); \
+ Q_COPY(out, in, dqi_valid); \
+} while (0)
+
+#define DQBLK_COPY(out, in) \
+do { \
+ Q_COPY(out, in, dqb_bhardlimit); \
+ Q_COPY(out, in, dqb_bsoftlimit); \
+ Q_COPY(out, in, dqb_curspace); \
+ Q_COPY(out, in, dqb_ihardlimit); \
+ Q_COPY(out, in, dqb_isoftlimit); \
+ Q_COPY(out, in, dqb_curinodes); \
+ Q_COPY(out, in, dqb_btime); \
+ Q_COPY(out, in, dqb_itime); \
+ Q_COPY(out, in, dqb_valid); \
+} while (0)
+
+static int fsfilt_ext3_quotactl(struct super_block *sb,
+ struct obd_quotactl *oqc)
+{
+ int i, rc = 0, error = 0;
+ const struct quotactl_ops *qcop;
+ struct if_dqinfo *info;
+ struct if_dqblk *dqblk;
+ ENTRY;
+
+ if (!sb->s_qcop)
+ RETURN(-ENOSYS);
+
+ OBD_ALLOC_PTR(info);
+ if (!info)
+ RETURN(-ENOMEM);
+ OBD_ALLOC_PTR(dqblk);
+ if (!dqblk) {
+ OBD_FREE_PTR(info);
+ RETURN(-ENOMEM);
+ }
+
+ DQINFO_COPY(info, &oqc->qc_dqinfo);
+ DQBLK_COPY(dqblk, &oqc->qc_dqblk);
+
+ qcop = sb->s_qcop;
+ if (oqc->qc_cmd == Q_QUOTAON || oqc->qc_cmd == Q_QUOTAOFF) {
+ for (i = 0; i < MAXQUOTAS; i++) {
+ if (!Q_TYPESET(oqc, i))
+ continue;
+
+ if (oqc->qc_cmd == Q_QUOTAON) {
+ char *name[MAXQUOTAS] = LUSTRE_OPQFILES_NAMES_V2;
+
+ LASSERT(oqc->qc_id == LUSTRE_QUOTA_V2);
+
+ rc = ll_quota_on(sb, i, QFMT_LUSTRE,
+ name[i], 0);
+ } else if (oqc->qc_cmd == Q_QUOTAOFF) {
+ rc = ll_quota_off(sb, i, 0);
+ }
+
+ if (rc == -EBUSY)
+ error = rc;
+ else if (rc)
+ GOTO(out, rc);
+ }
+ GOTO(out, rc ?: error);
+ }
+
+ switch (oqc->qc_cmd) {
+ case Q_GETOINFO:
+ case Q_GETINFO:
+ if (!qcop->get_info)
+ GOTO(out, rc = -ENOSYS);
+ rc = qcop->get_info(sb, oqc->qc_type, info);
+ break;
+ case Q_SETQUOTA:
+ case Q_INITQUOTA:
+ if (!qcop->set_dqblk)
+ GOTO(out, rc = -ENOSYS);
+ rc = qcop->set_dqblk(sb, oqc->qc_type, oqc->qc_id, dqblk);
+ break;
+ case Q_GETOQUOTA:
+ case Q_GETQUOTA:
+ if (!qcop->get_dqblk)
+ GOTO(out, rc = -ENOSYS);
+ rc = qcop->get_dqblk(sb, oqc->qc_type, oqc->qc_id, dqblk);
+ if (!rc)
+ dqblk->dqb_valid = QIF_LIMITS | QIF_USAGE;
+ break;
+ case Q_SYNC:
+ if (!sb->s_qcop->quota_sync)
+ GOTO(out, rc = -ENOSYS);
+ qcop->quota_sync(sb, oqc->qc_type);
+ break;
+ case Q_FINVALIDATE:
+ CDEBUG(D_WARNING, "invalidating operational quota files\n");
+ for (i = 0; i < MAXQUOTAS; i++) {
+ struct file *fp;
+ char *name[MAXQUOTAS] = LUSTRE_OPQFILES_NAMES_V2;
+
+ LASSERT(oqc->qc_id == LUSTRE_QUOTA_V2);
+
+ if (!Q_TYPESET(oqc, i))
+ continue;
+
+ fp = filp_open(name[i], O_CREAT | O_TRUNC | O_RDWR, 0644);
+ if (IS_ERR(fp)) {
+ rc = PTR_ERR(fp);
+ CERROR("error invalidating operational quota file"
+ " %s (rc:%d)\n", name[i], rc);
+ } else {
+ filp_close(fp, 0);
+ }
+
+ }
+ break;
+ default:
+ CERROR("unsupported quotactl command: %d\n", oqc->qc_cmd);
+ LBUG();
+ }
+out:
+ DQINFO_COPY(&oqc->qc_dqinfo, info);
+ DQBLK_COPY(&oqc->qc_dqblk, dqblk);
+
+ OBD_FREE_PTR(info);
+ OBD_FREE_PTR(dqblk);
+
+ if (rc)
+ CDEBUG(D_QUOTA, "quotactl command %#x, id %u, type %u "
+ "failed: %d\n",
+ oqc->qc_cmd, oqc->qc_id, oqc->qc_type, rc);
+ RETURN(rc);
+}
+
+struct chk_dqblk{
+ cfs_hlist_node_t dqb_hash; /** quotacheck hash */
+ cfs_list_t dqb_list; /** in list also */
+ qid_t dqb_id; /** uid/gid */
+ short dqb_type; /** USRQUOTA/GRPQUOTA */
+ qsize_t dqb_bhardlimit; /** block hard limit */
+ qsize_t dqb_bsoftlimit; /** block soft limit */
+ qsize_t dqb_curspace; /** current space */
+ qsize_t dqb_ihardlimit; /** inode hard limit */
+ qsize_t dqb_isoftlimit; /** inode soft limit */
+ qsize_t dqb_curinodes; /** current inodes */
+ obd_time dqb_btime; /** block grace time */
+ obd_time dqb_itime; /** inode grace time */
+ __u32 dqb_valid; /** flag for above fields */
+};
+
+static inline unsigned int chkquot_hash(qid_t id, int type)
+ __attribute__((__const__));
+
+static inline unsigned int chkquot_hash(qid_t id, int type)
+{
+ return (id * (MAXQUOTAS - type)) % NR_DQHASH;
+}
+
+static inline struct chk_dqblk *
+find_chkquot(cfs_hlist_head_t *head, qid_t id, int type)
+{
+ cfs_hlist_node_t *node;
+ struct chk_dqblk *cdqb;
+
+ cfs_hlist_for_each(node, head) {
+ cdqb = cfs_hlist_entry(node, struct chk_dqblk, dqb_hash);
+ if (cdqb->dqb_id == id && cdqb->dqb_type == type)
+ return cdqb;
+ }
+
+ return NULL;
+}
+
+static struct chk_dqblk *alloc_chkquot(qid_t id, int type)
+{
+ struct chk_dqblk *cdqb;
+
+ OBD_ALLOC_PTR(cdqb);
+ if (cdqb) {
+ CFS_INIT_HLIST_NODE(&cdqb->dqb_hash);
+ CFS_INIT_LIST_HEAD(&cdqb->dqb_list);
+ cdqb->dqb_id = id;
+ cdqb->dqb_type = type;
+ }
+
+ return cdqb;
+}
+
+static struct chk_dqblk *
+cqget(struct super_block *sb, cfs_hlist_head_t *hash,
+ cfs_list_t *list, qid_t id, int type, int first_check)
+{
+ cfs_hlist_head_t *head = hash + chkquot_hash(id, type);
+ struct if_dqblk dqb;
+ struct chk_dqblk *cdqb;
+ int rc;
+
+ cdqb = find_chkquot(head, id, type);
+ if (cdqb)
+ return cdqb;
+
+ cdqb = alloc_chkquot(id, type);
+ if (!cdqb)
+ return NULL;
+
+ if (!first_check) {
+ rc = sb->s_qcop->get_dqblk(sb, type, id, &dqb);
+ if (rc) {
+ CERROR("get_dqblk of id %u, type %d failed: %d\n",
+ id, type, rc);
+ } else {
+ DQBLK_COPY(cdqb, &dqb);
+ cdqb->dqb_curspace = 0;
+ cdqb->dqb_curinodes = 0;
+ }
+ }
+
+ cfs_hlist_add_head(&cdqb->dqb_hash, head);
+ cfs_list_add_tail(&cdqb->dqb_list, list);
+
+ return cdqb;
+}
+
+static inline int quota_onoff(struct super_block *sb, int cmd, int type, int qfmt)
+{
+ struct obd_quotactl *oqctl;
+ int rc;
+
+ OBD_ALLOC_PTR(oqctl);
+ if (!oqctl)
+ RETURN(-ENOMEM);
+
+ oqctl->qc_cmd = cmd;
+ oqctl->qc_id = qfmt;
+ oqctl->qc_type = type;
+ rc = fsfilt_ext3_quotactl(sb, oqctl);
+
+ OBD_FREE_PTR(oqctl);
+ return rc;
+}
+
+static inline int read_old_dqinfo(struct super_block *sb, int type,
+ struct if_dqinfo *dqinfo)
+{
+ struct obd_quotactl *oqctl;
+ int rc;
+ ENTRY;
+
+ OBD_ALLOC_PTR(oqctl);
+ if (!oqctl)
+ RETURN(-ENOMEM);
+
+ oqctl->qc_cmd = Q_GETINFO;
+ oqctl->qc_type = type;
+ rc = fsfilt_ext3_quotactl(sb, oqctl);
+ if (!rc)
+ ((struct obd_dqinfo *)dqinfo)[type] = oqctl->qc_dqinfo;
+
+ OBD_FREE_PTR(oqctl);
+ RETURN(rc);
+}
+
+#ifndef HAVE_EXT4_LDISKFS
+static inline struct ext3_group_desc *
+get_group_desc(struct super_block *sb, int group, struct buffer_head **bh)
+{
+ unsigned long desc_block, desc;
+ struct ext3_group_desc *gdp;
+
+ desc_block = group / EXT3_DESC_PER_BLOCK(sb);
+ desc = group % EXT3_DESC_PER_BLOCK(sb);
+ gdp = (struct ext3_group_desc *)
+ EXT3_SB(sb)->s_group_desc[desc_block]->b_data;
+
+ return gdp + desc;
+}
+
+static inline struct buffer_head *
+ext3_read_inode_bitmap(struct super_block *sb, unsigned long group)
+{
+ struct ext3_group_desc *desc;
+ struct buffer_head *bh;
+
+ desc = get_group_desc(sb, group, NULL);
+ bh = sb_bread(sb, ext3_inode_bitmap(sb, desc));
+ return bh;
+}
+
+static __u32 ext3_itable_unused_count(struct super_block *sb,
+ struct ext3_group_desc *bg) {
+ return le16_to_cpu(bg->bg_itable_unused);
+}
+#else
+#define get_group_desc ext3_get_group_desc
+#endif
+
+struct qchk_ctxt {
+ cfs_hlist_head_t qckt_hash[NR_DQHASH]; /* quotacheck hash */
+ cfs_list_t qckt_list; /* quotacheck list */
+ int qckt_first_check[MAXQUOTAS]; /* 1 if no old quotafile */
+ struct if_dqinfo qckt_dqinfo[MAXQUOTAS]; /* old dqinfo */
+};
+
+static int add_inode_quota(struct inode *inode, struct qchk_ctxt *qctxt,
+ struct obd_quotactl *oqc)
+{
+ struct chk_dqblk *cdqb[MAXQUOTAS] = { NULL, };
+ loff_t size = 0;
+ qid_t qid[MAXQUOTAS];
+ int cnt, i, rc = 0;
+
+ if (!inode)
+ return 0;
+
+ qid[USRQUOTA] = inode->i_uid;
+ qid[GRPQUOTA] = inode->i_gid;
+
+ if (S_ISDIR(inode->i_mode) ||
+ S_ISREG(inode->i_mode) ||
+ S_ISLNK(inode->i_mode))
+ size = inode_get_bytes(inode);
+
+ for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+ if (!Q_TYPESET(oqc, cnt))
+ continue;
+
+ cdqb[cnt] = cqget(inode->i_sb, qctxt->qckt_hash,
+ &qctxt->qckt_list, qid[cnt], cnt,
+ qctxt->qckt_first_check[cnt]);
+ if (!cdqb[cnt]) {
+ rc = -ENOMEM;
+ break;
+ }
+
+ cdqb[cnt]->dqb_curspace += size;
+ cdqb[cnt]->dqb_curinodes++;
+ }
+
+ if (rc) {
+ for (i = 0; i < cnt; i++) {
+ if (!Q_TYPESET(oqc, i))
+ continue;
+ LASSERT(cdqb[i]);
+ cdqb[i]->dqb_curspace -= size;
+ cdqb[i]->dqb_curinodes--;
+ }
+ }
+
+ return rc;
+}
+
+/* write dqinfo struct in a new quota file */
+static int v3_write_dqinfo(struct file *f, int type, struct if_dqinfo *info)
+{
+ struct v2_disk_dqinfo dqinfo;
+ __u32 blocks = V2_DQTREEOFF + 1;
+ loff_t offset = V2_DQINFOOFF;
+
+ if (info) {
+ dqinfo.dqi_bgrace = cpu_to_le32(info->dqi_bgrace);
+ dqinfo.dqi_igrace = cpu_to_le32(info->dqi_igrace);
+ dqinfo.dqi_flags = cpu_to_le32(info->dqi_flags & DQF_MASK &
+ ~DQF_INFO_DIRTY);
+ } else {
+ dqinfo.dqi_bgrace = cpu_to_le32(MAX_DQ_TIME);
+ dqinfo.dqi_igrace = cpu_to_le32(MAX_IQ_TIME);
+ dqinfo.dqi_flags = 0;
+ }
+
+ dqinfo.dqi_blocks = cpu_to_le32(blocks);
+ dqinfo.dqi_free_blk = 0;
+ dqinfo.dqi_free_entry = 0;
+
+ return cfs_user_write(f, (char *)&dqinfo, sizeof(dqinfo), &offset);
+}
+
+static int v3_write_dqheader(struct file *f, int type)
+{
+ static const __u32 quota_magics[] = V2_INITQMAGICS;
+ static const __u32 quota_versions[] = LUSTRE_INITQVERSIONS_V2;
+ struct v2_disk_dqheader dqhead;
+ loff_t offset = 0;
+
+ CLASSERT(ARRAY_SIZE(quota_magics) == ARRAY_SIZE(quota_versions));
+ LASSERT(0 <= type && type < ARRAY_SIZE(quota_magics));
+
+ dqhead.dqh_magic = cpu_to_le32(quota_magics[type]);
+ dqhead.dqh_version = cpu_to_le32(quota_versions[type]);
+
+ return cfs_user_write(f, (char *)&dqhead, sizeof(dqhead), &offset);
+}
+
+static int create_new_quota_files(struct qchk_ctxt *qctxt,
+ struct obd_quotactl *oqc)
+{
+ int i, rc = 0;
+ ENTRY;
+
+ for (i = 0; i < MAXQUOTAS; i++) {
+ struct if_dqinfo *info = qctxt->qckt_first_check[i]?
+ NULL : &qctxt->qckt_dqinfo[i];
+ struct file *file;
+ const char *name[MAXQUOTAS] = LUSTRE_OPQFILES_NAMES_V2;
+
+ if (!Q_TYPESET(oqc, i))
+ continue;
+
+ LASSERT(oqc->qc_id == LUSTRE_QUOTA_V2);
+
+ file = filp_open(name[i], O_RDWR | O_CREAT | O_TRUNC, 0644);
+ if (IS_ERR(file)) {
+ rc = PTR_ERR(file);
+ CERROR("can't create %s file: rc = %d\n",
+ name[i], rc);
+ GOTO(out, rc);
+ }
+
+ if (!S_ISREG(file->f_dentry->d_inode->i_mode)) {
+ CERROR("file %s is not regular", name[i]);
+ filp_close(file, 0);
+ GOTO(out, rc = -EINVAL);
+ }
+
+ ll_vfs_dq_drop(file->f_dentry->d_inode);
+
+ rc = v3_write_dqheader(file, i);
+ if (rc) {
+ filp_close(file, 0);
+ GOTO(out, rc);
+ }
+
+ rc = v3_write_dqinfo(file, i, info);
+ filp_close(file, 0);
+ if (rc)
+ GOTO(out, rc);
+ }
+
+out:
+ RETURN(rc);
+}
+
+
+static int commit_chkquot(struct super_block *sb, struct qchk_ctxt *qctxt,
+ struct chk_dqblk *cdqb)
+{
+ struct obd_quotactl *oqc;
+ long now;
+ int rc;
+ ENTRY;
+
+ OBD_ALLOC_PTR(oqc);
+ if (!oqc)
+ RETURN(-ENOMEM);
+
+ now = cfs_time_current_sec();
+
+ if (cdqb->dqb_bsoftlimit &&
+ toqb(cdqb->dqb_curspace) >= cdqb->dqb_bsoftlimit &&
+ !cdqb->dqb_btime)
+ cdqb->dqb_btime =
+ now + qctxt->qckt_dqinfo[cdqb->dqb_type].dqi_bgrace;
+
+ if (cdqb->dqb_isoftlimit &&
+ cdqb->dqb_curinodes >= cdqb->dqb_isoftlimit &&
+ !cdqb->dqb_itime)
+ cdqb->dqb_itime =
+ now + qctxt->qckt_dqinfo[cdqb->dqb_type].dqi_igrace;
+
+ cdqb->dqb_valid = QIF_ALL;
+
+ oqc->qc_cmd = Q_SETQUOTA;
+ oqc->qc_type = cdqb->dqb_type;
+ oqc->qc_id = cdqb->dqb_id;
+ DQBLK_COPY(&oqc->qc_dqblk, cdqb);
+
+ rc = fsfilt_ext3_quotactl(sb, oqc);
+ OBD_FREE_PTR(oqc);
+ RETURN(rc);
+}
+
+static int prune_chkquots(struct super_block *sb,
+ struct qchk_ctxt *qctxt, int error)
+{
+ struct chk_dqblk *cdqb, *tmp;
+ int rc;
+
+ cfs_list_for_each_entry_safe(cdqb, tmp, &qctxt->qckt_list, dqb_list) {
+ if (!error) {
+ rc = commit_chkquot(sb, qctxt, cdqb);
+ if (rc)
+ error = rc;
+ }
+ cfs_hlist_del_init(&cdqb->dqb_hash);
+ cfs_list_del(&cdqb->dqb_list);
+ OBD_FREE_PTR(cdqb);
+ }
+
+ return error;
+}
+
+#ifndef EXT3_FEATURE_RO_COMPAT_GDT_CSUM
+#define EXT3_FEATURE_RO_COMPAT_GDT_CSUM 0x0010
+#endif
+
+static int fsfilt_ext3_quotacheck(struct super_block *sb,
+ struct obd_quotactl *oqc)
+{
+ struct ext3_sb_info *sbi = EXT3_SB(sb);
+ int i, group, uninit_feat = 0;
+ struct qchk_ctxt *qctxt;
+ struct buffer_head *bitmap_bh = NULL;
+ unsigned long ino, inode_inuse;
+ struct inode *inode;
+ int rc = 0;
+ ENTRY;
+
+ /* turn on quota and read dqinfo if existed */
+ OBD_ALLOC_PTR(qctxt);
+ if (!qctxt) {
+ oqc->qc_stat = -ENOMEM;
+ RETURN(-ENOMEM);
+ }
+
+ for (i = 0; i < NR_DQHASH; i++)
+ CFS_INIT_HLIST_HEAD(&qctxt->qckt_hash[i]);
+ CFS_INIT_LIST_HEAD(&qctxt->qckt_list);
+
+ for (i = 0; i < MAXQUOTAS; i++) {
+ if (!Q_TYPESET(oqc, i))
+ continue;
+
+ rc = quota_onoff(sb, Q_QUOTAON, i, oqc->qc_id);
+ if (!rc || rc == -EBUSY) {
+ rc = read_old_dqinfo(sb, i, qctxt->qckt_dqinfo);
+ if (rc)
+ GOTO(out, rc);
+ } else if (rc == -ENOENT || rc == -EINVAL || rc == -EEXIST) {
+ qctxt->qckt_first_check[i] = 1;
+ } else if (rc) {
+ GOTO(out, rc);
+ }
+ }
+ if (EXT3_HAS_RO_COMPAT_FEATURE(sb, EXT3_FEATURE_RO_COMPAT_GDT_CSUM))
+ /* This filesystem supports the uninit group feature */
+ uninit_feat = 1;
+
+ /* number of inodes that have been allocated */
+ inode_inuse = sbi->s_inodes_per_group * sbi->s_groups_count -
+ percpu_counter_sum(&sbi->s_freeinodes_counter);
+
+ /* check quota and update in hash */
+ for (group = 0; group < sbi->s_groups_count && inode_inuse > 0;
+ group++) {
+ unsigned long used_count = sbi->s_inodes_per_group;
+
+ if (uninit_feat) {
+ struct ext3_group_desc *desc;
+ desc = get_group_desc(sb, group, NULL);
+ if (!desc)
+ GOTO(out, -EIO);
+
+ /* we don't really need to take the group lock here,
+ * but it may be useful if one day we support online
+ * quotacheck */
+#ifdef HAVE_EXT4_LDISKFS
+ ext4_lock_group(sb, group);
+#else
+ spin_lock(sb_bgl_lock(sbi, group));
+#endif
+ if (desc->bg_flags & cpu_to_le16(EXT3_BG_INODE_UNINIT)) {
+ /* no inode in use in this group, just skip it */
+#ifdef HAVE_EXT4_LDISKFS
+ ext3_unlock_group(sb, group);
+#else
+ spin_unlock(sb_bgl_lock(sbi, group));
+#endif
+ continue;
+ }
+
+ used_count -= ext3_itable_unused_count(sb, desc);
+#ifdef HAVE_EXT4_LDISKFS
+ ext3_unlock_group(sb, group);
+#else
+ spin_unlock(sb_bgl_lock(sbi, group));
+#endif
+ }
+
+ ino = group * sbi->s_inodes_per_group + 1;
+ bitmap_bh = ext3_read_inode_bitmap(sb, group);
+ if (!bitmap_bh) {
+ CERROR("%s: ext3_read_inode_bitmap group %d failed\n",
+ sb->s_id, group);
+ GOTO(out, -EIO);
+ }
+
+ i = 0;
+ while (i < used_count &&
+ (i = ext3_find_next_bit(bitmap_bh->b_data,
+ used_count, i)) < used_count) {
+ inode_inuse--;
+ i++;
+ ino = i + group * sbi->s_inodes_per_group;
+ if (ino < sbi->s_first_ino)
+ continue;
+#if defined(HAVE_EXT4_LDISKFS) || !defined(HAVE_READ_INODE_IN_SBOPS)
+ inode = ext3_iget(sb, ino);
+#else
+ inode = iget(sb, ino);
+#endif
+ if (!inode || IS_ERR(inode))
+ continue;
+
+ rc = add_inode_quota(inode, qctxt, oqc);
+ iput(inode);
+ if (rc) {
+ brelse(bitmap_bh);
+ GOTO(out, rc);
+ }
+ }
+ brelse(bitmap_bh);
+ }
+
+ /* read old quota limits from old quota file. (only for the user
+ * has limits but hasn't file) */
+#ifdef HAVE_QUOTA_SUPPORT
+ for (i = 0; i < MAXQUOTAS; i++) {
+ cfs_list_t id_list;
+ struct dquot_id *dqid, *tmp;
+
+ if (!Q_TYPESET(oqc, i))
+ continue;
+
+ if (qctxt->qckt_first_check[i])
+ continue;
+
+
+ LASSERT(sb_dqopt(sb)->files[i] != NULL);
+ CFS_INIT_LIST_HEAD(&id_list);
+#ifndef KERNEL_SUPPORTS_QUOTA_READ
+ rc = lustre_get_qids(sb_dqopt(sb)->files[i], NULL, i, &id_list);
+#else
+ rc = lustre_get_qids(NULL, sb_dqopt(sb)->files[i], i, &id_list);
+#endif
+ if (rc)
+ CERROR("read old limits failed. (rc:%d)\n", rc);
+
+ cfs_list_for_each_entry_safe(dqid, tmp, &id_list, di_link) {
+ cfs_list_del_init(&dqid->di_link);
+
+ if (!rc)
+ cqget(sb, qctxt->qckt_hash, &qctxt->qckt_list,
+ dqid->di_id, i,
+ qctxt->qckt_first_check[i]);
+ OBD_FREE_PTR(dqid);
+ }
+ }
+#endif
+ /* turn off quota cause we are to dump chk_dqblk to files */
+ quota_onoff(sb, Q_QUOTAOFF, oqc->qc_type, oqc->qc_id);
+
+ rc = create_new_quota_files(qctxt, oqc);
+ if (rc)
+ GOTO(out, rc);
+
+ /* we use vfs functions to set dqblk, so turn quota on */
+ rc = quota_onoff(sb, Q_QUOTAON, oqc->qc_type, oqc->qc_id);
+out:
+ /* dump and free chk_dqblk */
+ rc = prune_chkquots(sb, qctxt, rc);
+ OBD_FREE_PTR(qctxt);
+
+ /* turn off quota, `lfs quotacheck` will turn on when all
+ * nodes quotacheck finish. */
+ quota_onoff(sb, Q_QUOTAOFF, oqc->qc_type, oqc->qc_id);
+
+ oqc->qc_stat = rc;
+ if (rc)
+ CERROR("quotacheck failed: rc = %d\n", rc);
+
+ RETURN(rc);
+}
+
+static int fsfilt_ext3_quotainfo(struct lustre_quota_info *lqi, int type,
+ int cmd)
+{
+ int rc = 0;
+ ENTRY;
+
+ if (lqi->qi_files[type] == NULL) {
+ CERROR("operate qinfo before it's enabled!\n");
+ RETURN(-ESRCH);
+ }
+
+ switch (cmd) {
+ case QFILE_CHK:
+ rc = lustre_check_quota_file(lqi, type);
+ break;
+ case QFILE_RD_INFO:
+ rc = lustre_read_quota_info(lqi, type);
+ break;
+ case QFILE_WR_INFO:
+ rc = lustre_write_quota_info(lqi, type);
+ break;
+ case QFILE_INIT_INFO:
+ rc = lustre_init_quota_info(lqi, type);
+ break;
+ case QFILE_CONVERT:
+ rc = -ENOTSUPP;
+ CERROR("quota CONVERT command is not supported\n");
+ break;
+ default:
+ rc = -ENOTSUPP;
+ CERROR("Unsupported admin quota file cmd %d\n"
+ "Are lquota.ko and fsfilt_ldiskfs.ko modules in sync?\n",
+ cmd);
+ break;
+ }
+ RETURN(rc);
+}
+
+static int fsfilt_ext3_qids(struct file *file, struct inode *inode, int type,
+ cfs_list_t *list)
+{
+ return lustre_get_qids(file, inode, type, list);
+}
+
+static int fsfilt_ext3_dquot(struct lustre_dquot *dquot, int cmd)
+{
+ int rc = 0;
+ ENTRY;
+
+ if (dquot->dq_info->qi_files[dquot->dq_type] == NULL) {
+ CERROR("operate dquot before it's enabled!\n");
+ RETURN(-ESRCH);
+ }
+
+ switch (cmd) {
+ case QFILE_RD_DQUOT:
+ rc = lustre_read_dquot(dquot);
+ break;
+ case QFILE_WR_DQUOT:
+ if (dquot->dq_dqb.dqb_ihardlimit ||
+ dquot->dq_dqb.dqb_isoftlimit ||
+ dquot->dq_dqb.dqb_bhardlimit ||
+ dquot->dq_dqb.dqb_bsoftlimit)
+ cfs_clear_bit(DQ_FAKE_B, &dquot->dq_flags);
+ else
+ cfs_set_bit(DQ_FAKE_B, &dquot->dq_flags);
+
+ rc = lustre_commit_dquot(dquot);
+ if (rc >= 0)
+ rc = 0;
+ break;
+ default:
+ CERROR("Unsupported admin quota file cmd %d\n", cmd);
+ LBUG();
+ break;
+ }
+ RETURN(rc);
+}
+
+static int fsfilt_ext3_get_mblk(struct super_block *sb, int *count,
+ struct inode *inode, int frags)
+{
+#ifdef EXT3_EXT_HAS_NO_TREE
+ struct ext3_ext_base *base = inode;
+#else
+ struct ext3_extents_tree tree;
+ struct ext3_ext_base *base = &tree;
+
+ ext3_init_tree_desc(base, inode);
+#endif
+ /* for an ost_write request, it needs <#fragments> * <tree depth + 1>
+ * metablocks at maxium b=16542 */
+ *count = frags * (EXT_DEPTH(base) + 1) * EXT3_BLOCK_SIZE(sb);
return 0;
}
+#endif
+
+lvfs_sbdev_type fsfilt_ext3_journal_sbdev(struct super_block *sb)
+{
+ return (EXT3_SB(sb)->journal_bdev);
+}
+EXPORT_SYMBOL(fsfilt_ext3_journal_sbdev);
+
+ssize_t lustre_read_quota(struct file *f, struct inode *inode, int type,
+ char *buf, int count, loff_t pos)
+{
+ loff_t p = pos;
+ int rc;
+
+ if (!f && !inode) {
+ CERROR("lustre_read_quota failed for no quota file!\n");
+ libcfs_debug_dumpstack(NULL);
+ return -EINVAL;
+ }
+
+ /* Support for both adm and op quota files must be provided */
+ if (f) {
+ rc = fsfilt_ext3_read_record(f, buf, count, &p);
+ rc = rc < 0 ? rc : p - pos;
+ } else {
+ struct super_block *sb = inode->i_sb;
+ rc = sb->s_op->quota_read(sb, type, buf, count, pos);
+ }
+ return rc;
+}
+
+ssize_t lustre_write_quota(struct file *f, char *buf, int count, loff_t pos)
+{
+ loff_t p = pos;
+ int rc;
+
+ /* Only adm quota files are supported, op updates are handled by vfs */
+ rc = fsfilt_ext3_write_record(f, buf, count, &p, 0);
+ rc = rc < 0 ? rc : p - pos;
+
+ return rc;
+}
+
+void *lustre_quota_journal_start(struct inode *inode, int delete)
+{
+ handle_t *handle;
+ unsigned block_count;
+
+ if (delete) {
+ /* each indirect block (+4) may become free, attaching to the
+ * header list of free blocks (+1); the data block (+1) may
+ * become a free block (+0) or a block with free dqentries (+0) */
+ block_count = (4 + 1) + 1;
+ handle = ext3_journal_start(inode,
+ block_count*FSFILT_DATA_TRANS_BLOCKS(inode->i_sb)+2);
+ } else {
+ /* indirect blocks are touched (+4), each causes file expansion (+0) or
+ * freeblk reusage with a header update (+1); dqentry is either reused
+ * causing update of the entry block (+1), prev (+1) and next (+1) or
+ * a new block allocation (+1) with a header update (+1) */
+ block_count = (4 + 1) + 3;
+ handle = ext3_journal_start(inode,
+ block_count*FSFILT_DATA_TRANS_BLOCKS(inode->i_sb)+2);
+
+ }
+
+ return handle;
+}
+
+void lustre_quota_journal_stop(void *handle)
+{
+ ext3_journal_stop((handle_t *)handle);
+}
+
+static int ll_decode_fh_accept(void *context, struct dentry *de)
+{
+ return 1;
+}
+
+#ifdef HAVE_EXPORTFS_DECODE_FH
+# define ll_exportfs_decode_fh(mnt, fid, len, type, acceptable, context) \
+ exportfs_decode_fh(mnt, (struct fid*)(fid), len, type, \
+ acceptable, context)
+#else
+# define ll_exportfs_decode_fh(mnt, fid, len, type, acceptable, context) \
+ export_op_default.decode_fh((mnt)->mnt_sb, &(fid)->ino, len, \
+ type, acceptable, context)
+# define FILEID_INO32_GEN 1
+extern struct export_operations export_op_default;
+#endif
+
+struct dentry *fsfilt_ext3_fid2dentry(struct vfsmount *mnt,
+ struct fsfilt_fid *fid, int ignore_gen)
+{
+ struct inode *inode;
+ struct dentry *result;
+
+ result = ll_exportfs_decode_fh(mnt, fid, 2, FILEID_INO32_GEN,
+ ll_decode_fh_accept, NULL);
+ if (IS_ERR(result)) {
+ CDEBUG(D_DENTRY, "%s of %u/%u failed %ld\n", __func__,
+ fid->ino, fid->gen, PTR_ERR(result));
+ return result;
+ }
+
+ CDEBUG(D_DENTRY, "%s of %u/%u succeeded\n", __func__,
+ fid->ino, fid->gen);
+ inode = result->d_inode;
+ if (inode == NULL)
+ goto err_out;
+
+ if (inode->i_nlink == 0 &&
+ inode->i_mode == 0 && LTIME_S(inode->i_ctime) == 0) {
+ LCONSOLE_WARN("Found inode with zero nlink, mode and"
+ " ctime -- this may indicate disk "
+ "corruption (inode: %lu, link: %lu, "
+ "count: %d)\n", inode->i_ino,
+ (unsigned long)inode->i_nlink,
+ atomic_read(&inode->i_count));
+ goto err_out;
+ }
+ if (fid->gen && inode->i_generation != fid->gen) {
+ /* we didn't find the right inode.. */
+ CDEBUG(D_INODE, "found wrong generation: inode %lu, link: %lu, "
+ "count: %d, generation %u/%u\n",
+ inode->i_ino, (unsigned long)inode->i_nlink,
+ atomic_read(&inode->i_count), inode->i_generation,
+ fid->gen);
+ goto err_out;
+ }
+
+ return result;
+err_out:
+ l_dput(result);
+ return ERR_PTR(-ENOENT);
+}
+
static struct fsfilt_operations fsfilt_ext3_ops = {
- fs_type: "ext3",
- fs_owner: THIS_MODULE,
- fs_start: fsfilt_ext3_start,
- fs_brw_start: fsfilt_ext3_brw_start,
- fs_commit: fsfilt_ext3_commit,
- fs_commit_async: fsfilt_ext3_commit_async,
- fs_commit_wait: fsfilt_ext3_commit_wait,
- fs_setattr: fsfilt_ext3_setattr,
- fs_iocontrol: fsfilt_ext3_iocontrol,
- fs_set_md: fsfilt_ext3_set_md,
- fs_get_md: fsfilt_ext3_get_md,
- fs_readpage: fsfilt_ext3_readpage,
- fs_add_journal_cb: fsfilt_ext3_add_journal_cb,
- fs_statfs: fsfilt_ext3_statfs,
- fs_sync: fsfilt_ext3_sync,
- fs_map_inode_page: fsfilt_ext3_map_inode_page,
- fs_prep_san_write: fsfilt_ext3_prep_san_write,
- fs_write_record: fsfilt_ext3_write_record,
- fs_read_record: fsfilt_ext3_read_record,
- fs_setup: fsfilt_ext3_setup,
+ .fs_type = "ext3",
+ .fs_owner = THIS_MODULE,
+ .fs_getlabel = fsfilt_ext3_get_label,
+ .fs_setlabel = fsfilt_ext3_set_label,
+ .fs_uuid = fsfilt_ext3_uuid,
+ .fs_start = fsfilt_ext3_start,
+ .fs_brw_start = fsfilt_ext3_brw_start,
+ .fs_extend = fsfilt_ext3_extend,
+ .fs_commit = fsfilt_ext3_commit,
+ .fs_commit_async = fsfilt_ext3_commit_async,
+ .fs_commit_wait = fsfilt_ext3_commit_wait,
+ .fs_setattr = fsfilt_ext3_setattr,
+ .fs_iocontrol = fsfilt_ext3_iocontrol,
+ .fs_set_md = fsfilt_ext3_set_md,
+ .fs_get_md = fsfilt_ext3_get_md,
+ .fs_readpage = fsfilt_ext3_readpage,
+ .fs_add_journal_cb = fsfilt_ext3_add_journal_cb,
+ .fs_statfs = fsfilt_ext3_statfs,
+ .fs_sync = fsfilt_ext3_sync,
+ .fs_map_inode_pages = fsfilt_ext3_map_inode_pages,
+ .fs_write_record = fsfilt_ext3_write_record,
+ .fs_read_record = fsfilt_ext3_read_record,
+ .fs_setup = fsfilt_ext3_setup,
+ .fs_send_bio = fsfilt_ext3_send_bio,
+ .fs_get_op_len = fsfilt_ext3_get_op_len,
+#ifdef HAVE_DISK_INODE_VERSION
+ .fs_get_version = fsfilt_ext3_get_version,
+ .fs_set_version = fsfilt_ext3_set_version,
+#endif
+#ifdef HAVE_QUOTA_SUPPORT
+ .fs_quotactl = fsfilt_ext3_quotactl,
+ .fs_quotacheck = fsfilt_ext3_quotacheck,
+ .fs_quotainfo = fsfilt_ext3_quotainfo,
+ .fs_qids = fsfilt_ext3_qids,
+ .fs_dquot = fsfilt_ext3_dquot,
+ .fs_get_mblk = fsfilt_ext3_get_mblk,
+#endif
+ .fs_journal_sbdev = fsfilt_ext3_journal_sbdev,
+ .fs_fid2dentry = fsfilt_ext3_fid2dentry,
};
static int __init fsfilt_ext3_init(void)
{
int rc;
- //rc = ext3_xattr_register();
- fcb_cache = kmem_cache_create("fsfilt_ext3_fcb",
- sizeof(struct fsfilt_cb_data), 0,
- 0, NULL, NULL);
+ fcb_cache = cfs_mem_cache_create("fsfilt_ext3_fcb",
+ sizeof(struct fsfilt_cb_data), 0, 0);
if (!fcb_cache) {
CERROR("error allocating fsfilt journal callback cache\n");
GOTO(out, rc = -ENOMEM);
rc = fsfilt_register_ops(&fsfilt_ext3_ops);
- if (rc)
- kmem_cache_destroy(fcb_cache);
+ if (rc) {
+ int err = cfs_mem_cache_destroy(fcb_cache);
+ LASSERTF(err == 0, "error destroying new cache: rc %d\n", err);
+ }
out:
return rc;
}
int rc;
fsfilt_unregister_ops(&fsfilt_ext3_ops);
- rc = kmem_cache_destroy(fcb_cache);
-
- if (rc || atomic_read(&fcb_cache_count)) {
- CERROR("can't free fsfilt callback cache: count %d, rc = %d\n",
- atomic_read(&fcb_cache_count), rc);
- }
-
- //rc = ext3_xattr_unregister();
+ rc = cfs_mem_cache_destroy(fcb_cache);
+ LASSERTF(rc == 0, "couldn't destroy fcb_cache slab\n");
}
module_init(fsfilt_ext3_init);
module_exit(fsfilt_ext3_exit);
-MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
+MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
MODULE_DESCRIPTION("Lustre ext3 Filesystem Helper v0.1");
MODULE_LICENSE("GPL");
git://git.whamcloud.com / fs / lustre-release.git / blobdiff