* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ * Copyright (c) 2011, 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <linux/fs.h>
#include <linux/slab.h>
#include <linux/pagemap.h>
-#include <linux/quotaops.h>
-#ifdef HAVE_LINUX_EXPORTFS_H
-#include <linux/exportfs.h>
-#endif
+#include <ldiskfs/ldiskfs_config.h>
#include <ext4/ext4.h>
#include <ext4/ext4_jbd2.h>
#include <linux/version.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_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>
-#elif !defined(EXT3_XATTR_INDEX_TRUSTED)
-/* ext3 xattr.h not available in rh style kernel-devel rpm */
-/* CHAOS kernel-devel package will not include fs/ldiskfs/xattr.h */
-# define EXT3_XATTR_INDEX_TRUSTED 4
-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>
#include <ext4/ext4_extents.h>
-#include "lustre_quota_fmt.h"
-
/* for kernels 2.6.18 and later */
#define FSFILT_SINGLEDATA_TRANS_BLOCKS(sb) EXT3_SINGLEDATA_TRANS_BLOCKS(sb)
#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)
-#ifdef HAVE_EXT4_JOURNAL_CALLBACK_ADD
-# define journal_callback ext4_journal_cb_entry
-# define fsfilt_journal_callback_set(handle, func, jcb) \
- ext4_journal_callback_add(handle, func, jcb)
-#elif defined(HAVE_JBD2_JOURNAL_CALLBACK_SET)
-# define fsfilt_journal_callback_set(handle, func, jcb) \
- jbd2_journal_callback_set(handle, func, jcb)
-#elif defined(HAVE_JOURNAL_CALLBACK_SET)
-# define fsfilt_journal_callback_set(handle, func, jcb) \
- journal_callback_set(handle, func, jcb)
-#else
-# error missing journal commit callback
-#endif /* HAVE_EXT4_JOURNAL_CALLBACK_ADD */
-
static cfs_mem_cache_t *fcb_cache;
struct fsfilt_cb_data {
- struct journal_callback cb_jcb; /* jbd private data - MUST BE FIRST */
- fsfilt_cb_t cb_func; /* MDS/OBD completion function */
- struct obd_device *cb_obd; /* MDS/OBD completion device */
- __u64 cb_last_rcvd; /* MDS/OST last committed operation */
- void *cb_data; /* MDS/OST completion function data */
+ struct ext4_journal_cb_entry cb_jcb; /* private data - MUST BE FIRST */
+ fsfilt_cb_t cb_func; /* MDS/OBD completion function */
+ struct obd_device *cb_obd; /* MDS/OBD completion device */
+ __u64 cb_last_rcvd; /* MDS/OST last committed operation */
+ void *cb_data; /* MDS/OST completion function data */
};
-#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)
+/* kernel has ext4_blocks_for_truncate since linux-3.1.1 */
+#ifdef HAVE_BLOCKS_FOR_TRUNCATE
+# include <ext4/truncate.h>
+#else
+static inline unsigned long ext4_blocks_for_truncate(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);
-}
+ ext4_lblk_t needed;
-/*
- * 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;
+ needed = inode->i_blocks >> (inode->i_sb->s_blocksize_bits - 9);
+ if (needed < 2)
+ needed = 2;
+ if (needed > EXT4_MAX_TRANS_DATA)
+ needed = EXT4_MAX_TRANS_DATA;
+ return EXT4_DATA_TRANS_BLOCKS(inode->i_sb) + needed;
}
-
#endif
/*
}
switch(op) {
- case FSFILT_OP_RMDIR:
case FSFILT_OP_UNLINK:
/* delete one file + create/update logs for each stripe */
nblocks += EXT3_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 += 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: {
- /* no break */
- }
- case FSFILT_OP_MKDIR:
- case FSFILT_OP_MKNOD:
- /* modify one inode + block bitmap + GDT */
- nblocks += 3;
- /* no break */
- case FSFILT_OP_LINK:
- /* modify parent directory */
- nblocks += EXT3_INDEX_EXTRA_TRANS_BLOCKS +
- EXT3_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 +
- EXT3_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:
- /* blocks for log header bitmap update OR
- * blocks for catalog header bitmap update + unlink of logs */
+ LASSERT(logs == 1);
+
+ /* blocks for log header bitmap update OR
+ * blocks for catalog header bitmap update + unlink of logs +
+ * blocks for delete the inode (include blocks truncating). */
nblocks = (LLOG_CHUNK_SIZE >> inode->i_blkbits) +
- EXT3_DELETE_TRANS_BLOCKS(inode->i_sb) * logs;
+ EXT3_DELETE_TRANS_BLOCKS(inode->i_sb) +
+ ext4_blocks_for_truncate(inode) + 3;
break;
default: CERROR("unknown transaction start op %d\n", op);
LBUG();
return handle;
}
-/*
- * Calculate the number of buffer credits needed to write multiple pages in
- * a single ext3 transaction. No, this shouldn't be here, but as yet ext3
- * doesn't have a nice API for calculating this sort of thing in advance.
- *
- * See comment above ext3_writepage_trans_blocks for details. We assume
- * no data journaling is being done, but it does allow for all of the pages
- * being non-contiguous. If we are guaranteed contiguous pages we could
- * reduce the number of (d)indirect blocks a lot.
- *
- * With N blocks per page and P pages, for each inode we have at most:
- * N*P indirect
- * min(N*P, blocksize/4 + 1) dindirect blocks
- * niocount tindirect
- *
- * For the entire filesystem, we have at most:
- * min(sum(nindir + P), ngroups) bitmap blocks (from the above)
- * min(sum(nindir + P), gdblocks) group descriptor blocks (from the above)
- * objcount inode blocks
- * 1 superblock
- * 2 * EXT3_SINGLEDATA_TRANS_BLOCKS for the quota files
- *
- * 1 EXT3_DATA_TRANS_BLOCKS for the last_rcvd update.
- */
-static int fsfilt_ext3_credits_needed(int objcount, struct fsfilt_objinfo *fso,
- int niocount, struct niobuf_local *nb)
-{
- struct super_block *sb = fso->fso_dentry->d_inode->i_sb;
- __u64 next_indir;
- const int blockpp = 1 << (CFS_PAGE_SHIFT - sb->s_blocksize_bits);
- int nbitmaps = 0, ngdblocks;
- int needed = objcount + 1; /* inodes + superblock */
- int i, j;
-
- for (i = 0, j = 0; i < objcount; i++, fso++) {
- /* two or more dindirect blocks in case we cross boundary */
- int ndind = (long)((nb[j + fso->fso_bufcnt - 1].offset -
- nb[j].offset) >>
- sb->s_blocksize_bits) /
- (EXT3_ADDR_PER_BLOCK(sb) * EXT3_ADDR_PER_BLOCK(sb));
- nbitmaps += min(fso->fso_bufcnt, ndind > 0 ? ndind : 2);
-
- /* leaf, indirect, tindirect blocks for first block */
- nbitmaps += blockpp + 2;
-
- j += fso->fso_bufcnt;
- }
-
- next_indir = nb[0].offset +
- (EXT3_ADDR_PER_BLOCK(sb) << sb->s_blocksize_bits);
- for (i = 1; i < niocount; i++) {
- if (nb[i].offset >= next_indir) {
- nbitmaps++; /* additional indirect */
- next_indir = nb[i].offset +
- (EXT3_ADDR_PER_BLOCK(sb)<<sb->s_blocksize_bits);
- } else if (nb[i].offset != nb[i - 1].offset + sb->s_blocksize) {
- nbitmaps++; /* additional indirect */
- }
- nbitmaps += blockpp; /* each leaf in different group? */
- }
-
- ngdblocks = nbitmaps;
- if (nbitmaps > EXT3_SB(sb)->s_groups_count)
- nbitmaps = EXT3_SB(sb)->s_groups_count;
- if (ngdblocks > EXT3_SB(sb)->s_gdb_count)
- ngdblocks = EXT3_SB(sb)->s_gdb_count;
-
- needed += nbitmaps + ngdblocks;
-
- /* last_rcvd update */
- needed += EXT3_DATA_TRANS_BLOCKS(sb);
-
-#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(ll_sb_any_quota_active(sb)) *
- FSFILT_SINGLEDATA_TRANS_BLOCKS(sb);
-#endif
-
- return needed;
-}
-
-/* We have to start a huge journal transaction here to hold all of the
- * metadata for the pages being written here. This is necessitated by
- * the fact that we do lots of prepare_write operations before we do
- * any of the matching commit_write operations, so even if we split
- * up to use "smaller" transactions none of them could complete until
- * all of them were opened. By having a single journal transaction,
- * we eliminate duplicate reservations for common blocks like the
- * superblock and group descriptors or bitmaps.
- *
- * We will start the transaction here, but each prepare_write will
- * add a refcount to the transaction, and each commit_write will
- * remove a refcount. The transaction will be closed when all of
- * the pages have been written.
- */
-static void *fsfilt_ext3_brw_start(int objcount, struct fsfilt_objinfo *fso,
- int niocount, struct niobuf_local *nb,
- void *desc_private, int logs)
-{
- journal_t *journal;
- handle_t *handle;
- int needed;
- ENTRY;
-
- LASSERT(current->journal_info == desc_private);
- journal = EXT3_SB(fso->fso_dentry->d_inode->i_sb)->s_journal;
- needed = fsfilt_ext3_credits_needed(objcount, fso, niocount, nb);
-
- /* The number of blocks we could _possibly_ dirty can very large.
- * We reduce our request if it is absurd (and we couldn't get that
- * many credits for a single handle anyways).
- *
- * At some point we have to limit the size of I/Os sent at one time,
- * increase the size of the journal, or we have to calculate the
- * actual journal requirements more carefully by checking all of
- * the blocks instead of being maximally pessimistic. It remains to
- * be seen if this is a real problem or not.
- */
- if (needed > journal->j_max_transaction_buffers) {
- CERROR("want too many journal credits (%d) using %d instead\n",
- needed, journal->j_max_transaction_buffers);
- needed = journal->j_max_transaction_buffers;
- }
-
- 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));
- } else {
- LASSERT(handle->h_buffer_credits >= needed);
- LASSERT(current->journal_info == 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;
return rc;
}
-static int fsfilt_ext3_commit_async(struct inode *inode, void *h,
- void **wait_handle)
-{
- unsigned long tid;
- transaction_t *transaction;
- handle_t *handle = h;
- journal_t *journal;
- int rc;
-
- LASSERT(current->journal_info == handle);
-
- transaction = handle->h_transaction;
- journal = transaction->t_journal;
- tid = transaction->t_tid;
- /* we don't want to be blocked */
- handle->h_sync = 0;
- rc = ext3_journal_stop(handle);
- if (rc) {
- CERROR("error while stopping transaction: %d\n", rc);
- return rc;
- }
- fsfilt_log_start_commit(journal, tid);
-
- *wait_handle = (void *) tid;
- CDEBUG(D_INODE, "commit async: %lu\n", (unsigned long) tid);
- return 0;
-}
-
-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 (unlikely(is_journal_aborted(journal)))
- return -EIO;
-
- fsfilt_log_wait_commit(EXT3_JOURNAL(inode), tid);
-
- if (unlikely(is_journal_aborted(journal)))
- return -EIO;
- return 0;
-}
-
-static int fsfilt_ext3_setattr(struct dentry *dentry, void *handle,
- struct iattr *iattr, int do_trunc)
-{
- struct inode *inode = dentry->d_inode;
- int rc = 0;
-
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2,7,50,0)
- /* Try to correct for a bug in 2.1.0 (LU-221) that caused negative
- * timestamps to appear to be in the far future, due old timestamp
- * being stored on disk as an unsigned value. This fixes up any
- * bad values held by the client before storing them on disk,
- * and ensures any timestamp updates are correct. LU-1042 */
- if (unlikely(LTIME_S(inode->i_atime) == LU221_BAD_TIME &&
- !(iattr->ia_valid & ATTR_ATIME))) {
- iattr->ia_valid |= ATTR_ATIME;
- LTIME_S(iattr->ia_atime) = 0;
- }
- if (unlikely(LTIME_S(inode->i_mtime) == LU221_BAD_TIME &&
- !(iattr->ia_valid & ATTR_MTIME))) {
- iattr->ia_valid |= ATTR_MTIME;
- LTIME_S(iattr->ia_mtime) = 0;
- }
- if (unlikely((LTIME_S(inode->i_ctime) == LU221_BAD_TIME ||
- LTIME_S(inode->i_ctime) == 0) &&
- !(iattr->ia_valid & ATTR_CTIME))) {
- iattr->ia_valid |= ATTR_CTIME;
- LTIME_S(iattr->ia_ctime) = 0;
- }
-#else
-#warning "remove old LU-221/LU-1042 workaround code"
-#endif
-
- /* When initializating timestamps for new inodes, use the filesystem
- * mkfs time for ctime to avoid e2fsck ibadness incorrectly thinking
- * that this is potentially an invalid inode. Files with an old ctime
- * migrated to a newly-formatted OST with a newer s_mkfs_time will not
- * hit this check, since it is only for ctime == 0. LU-1010/LU-1042 */
- if ((iattr->ia_valid & ATTR_CTIME) && LTIME_S(iattr->ia_ctime) == 0)
- LTIME_S(iattr->ia_ctime) =
- EXT4_SB(inode->i_sb)->s_es->s_mkfs_time;
-
- /* 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 = 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 */
- 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. */
- iattr->ia_valid &= ~TIMES_SET_FLAGS;
-
- if (inode->i_op->setattr) {
- rc = inode->i_op->setattr(dentry, iattr);
- } else {
-#ifndef HAVE_SIMPLE_SETATTR /* simple_setattr() already call it */
- rc = inode_change_ok(inode, iattr);
- if (!rc)
-#endif
- rc = simple_setattr(dentry, iattr);
- }
-
- out:
- RETURN(rc);
-}
-
-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;
- }
-
- /* ext4_ioctl does not have a inode argument */
- if (inode->i_fop->unlocked_ioctl)
- rc = inode->i_fop->unlocked_ioctl(file, cmd, arg);
- else
- RETURN(-ENOTTY);
-
- RETURN(rc);
-}
-
-static int fsfilt_ext3_set_md(struct inode *inode, void *handle,
- void *lmm, int lmm_size, const char *name)
-{
- int rc;
-
- LASSERT(mutex_trylock(&inode->i_mutex) == 0);
-
- rc = ext3_xattr_set_handle(handle, inode, EXT3_XATTR_INDEX_TRUSTED,
- name, lmm, lmm_size, XATTR_NO_CTIME);
-
- 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_mutex held */
-static int fsfilt_ext3_get_md(struct inode *inode, void *lmm, int lmm_size,
- const char *name)
-{
- int rc;
-
- LASSERT(mutex_trylock(&inode->i_mutex) == 0);
-
- rc = ext3_xattr_get(inode, EXT3_XATTR_INDEX_TRUSTED,
- name, lmm, lmm_size);
-
- /* This gives us the MD size */
- if (lmm == NULL)
- return (rc == -ENODATA) ? 0 : rc;
-
- if (rc < 0) {
- CDEBUG(D_INFO, "error getting EA %d/%s from inode %lu: rc %d\n",
- 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)
-{
- struct inode *inode = file->f_dentry->d_inode;
- int rc = 0;
-
- if (S_ISREG(inode->i_mode))
- rc = file->f_op->read(file, buf, count, off);
- else {
- const int blkbits = inode->i_sb->s_blocksize_bits;
- const int blksize = inode->i_sb->s_blocksize;
-
- 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 < i_size_read(inode)) {
- int err = 0;
-
- bh = ext3_bread(NULL, inode, *off >> blkbits,
- 0, &err);
-
- CDEBUG(D_EXT2, "read %u@%llu\n", blksize, *off);
-
- if (bh) {
- memcpy(buf, bh->b_data, blksize);
- brelse(bh);
- } else if (err) {
- /* XXX in theory we should just fake
- * this buffer and continue like ext3,
- * especially if this is a partial read
- */
- CERROR("error read dir %lu+%llu: %d\n",
- inode->i_ino, *off, err);
- RETURN(err);
- }
- }
- if (!bh) {
- struct ext3_dir_entry_2 *fake = (void *)buf;
-
- CDEBUG(D_EXT2, "fake %u@%llu\n", blksize, *off);
- memset(fake, 0, sizeof(*fake));
- fake->rec_len = cpu_to_le16(blksize);
- }
- count -= blksize;
- buf += blksize;
- *off += blksize;
- rc += blksize;
- }
- }
-
- return rc;
-}
-
-#ifdef HAVE_EXT4_JOURNAL_CALLBACK_ADD
-static void fsfilt_ext3_cb_func(struct super_block *sb,
- struct journal_callback *jcb, int error)
-#else
-static void fsfilt_ext3_cb_func(struct journal_callback *jcb, int error)
-#endif
-{
- struct fsfilt_cb_data *fcb = container_of(jcb, typeof(*fcb), cb_jcb);
-
- fcb->cb_func(fcb->cb_obd, fcb->cb_last_rcvd, fcb->cb_data, error);
-
- OBD_SLAB_FREE(fcb, fcb_cache, sizeof *fcb);
-}
-
-static int fsfilt_ext3_add_journal_cb(struct obd_device *obd, __u64 last_rcvd,
- void *handle, fsfilt_cb_t cb_func,
- void *cb_data)
-{
- struct fsfilt_cb_data *fcb;
-
- OBD_SLAB_ALLOC_PTR_GFP(fcb, fcb_cache, CFS_ALLOC_IO);
- if (fcb == NULL)
- RETURN(-ENOMEM);
-
- 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);
- fsfilt_journal_callback_set(handle, fsfilt_ext3_cb_func, &fcb->cb_jcb);
-
- return 0;
-}
-
-static int fsfilt_ext3_statfs(struct super_block *sb, struct obd_statfs *osfs)
-{
- struct kstatfs sfs;
- int rc;
-
- memset(&sfs, 0, sizeof(sfs));
- rc = ll_do_statfs(sb, &sfs);
- statfs_pack(osfs, &sfs);
- return rc;
-}
-
-static int fsfilt_ext3_sync(struct super_block *sb)
-{
- return ext3_force_commit(sb);
-}
-
#ifndef EXT3_EXTENTS_FL
#define EXT3_EXTENTS_FL 0x00080000 /* Inode uses extents */
#endif
#define EXT_ASSERT(cond) BUG_ON(!(cond))
#endif
-#ifdef EXT3_EXT_HAS_NO_TREE
-/* for kernels 2.6.18 and later */
#define EXT_GENERATION(inode) (EXT4_I(inode)->i_ext_generation)
#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
struct bpointers {
unsigned long *blocks;
- int *created;
unsigned long start;
int num;
int init_num;
}
#endif
-#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,
void *cbdata)
{
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;
unsigned long pblock;
unsigned long count;
handle_t *handle;
- if (cex->ec_type == EXT3_EXT_CACHE_EXTENT) {
+#ifdef EXT3_EXT_CACHE_EXTENT
+ if (cex->ec_type == EXT3_EXT_CACHE_EXTENT)
+#else
+ if ((cex->ec_len != 0) && (cex->ec_start != 0))
+#endif
+ {
err = EXT_CONTINUE;
goto map;
}
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--;
CERROR("hmm. why do we find this extent?\n");
CERROR("initial space: %lu:%u\n",
bp->start, bp->init_num);
+#ifdef EXT3_EXT_CACHE_EXTENT
CERROR("current extent: %u/%u/%llu %d\n",
cex->ec_block, cex->ec_len,
(unsigned long long)cex->ec_start,
cex->ec_type);
+#else
+ CERROR("current extent: %u/%u/%llu\n",
+ cex->ec_block, cex->ec_len,
+ (unsigned long long)cex->ec_start);
+#endif
}
i = 0;
if (cex->ec_block < bp->start)
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;
+#ifdef EXT3_EXT_CACHE_EXTENT
+ if (cex->ec_type != EXT3_EXT_CACHE_EXTENT)
+#else
+ if ((cex->ec_len == 0) || (cex->ec_start == 0))
+#endif
+ {
/* 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++;
}
int fsfilt_map_nblocks(struct inode *inode, unsigned long block,
- unsigned long num, unsigned long *blocks,
- int *created, int create)
+ unsigned long num, unsigned long *blocks,
+ 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;
}
int fsfilt_ext3_map_ext_inode_pages(struct inode *inode, struct page **page,
- int pages, unsigned long *blocks,
- int *created, int create)
+ int pages, unsigned long *blocks,
+ int create)
{
int blocks_per_page = CFS_PAGE_SIZE >> inode->i_blkbits;
int rc = 0, i = 0;
/* process found extent */
rc = fsfilt_map_nblocks(inode, fp->index * blocks_per_page,
- clen * blocks_per_page, blocks,
- created, create);
+ clen * blocks_per_page, blocks,
+ 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);
+ clen * blocks_per_page, blocks,
+ 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 pages, unsigned long *blocks,
+ int create)
{
- int blocks_per_page = CFS_PAGE_SIZE >> inode->i_blkbits;
- unsigned long *b;
- int rc = 0, i, *cr;
+ int blocks_per_page = CFS_PAGE_SIZE >> inode->i_blkbits;
+ unsigned long *b;
+ int rc = 0, i;
- for (i = 0, cr = created, b = blocks; i < pages; i++, page++) {
- rc = ext3_map_inode_page(inode, *page, b, cr, create);
+ for (i = 0, b = blocks; i < pages; i++, page++) {
+ rc = ext3_map_inode_page(inode, *page, b, create);
if (rc) {
- CERROR("ino %lu, blk %lu cr %u create %d: rc %d\n",
- inode->i_ino, *b, *cr, create, rc);
+ CERROR("ino %lu, blk %lu create %d: rc %d\n",
+ inode->i_ino, *b, 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_mutex_t *optional_mutex)
+ int pages, unsigned long *blocks,
+ int create, struct mutex *optional_mutex)
{
int rc;
if (EXT3_I(inode)->i_flags & EXT3_EXTENTS_FL) {
- rc = fsfilt_ext3_map_ext_inode_pages(inode, page, pages,
- blocks, created, create);
+ rc = fsfilt_ext3_map_ext_inode_pages(inode, page, pages,
+ blocks, create);
return rc;
}
if (optional_mutex != NULL)
- cfs_mutex_lock(optional_mutex);
- rc = fsfilt_ext3_map_bm_inode_pages(inode, page, pages, blocks,
- created, create);
+ mutex_lock(optional_mutex);
+ rc = fsfilt_ext3_map_bm_inode_pages(inode, page, pages, blocks, create);
if (optional_mutex != NULL)
- cfs_mutex_unlock(optional_mutex);
+ mutex_unlock(optional_mutex);
return rc;
}
/* prevent reading after eof */
spin_lock(&inode->i_lock);
- if (i_size_read(inode) < *offs + size) {
- size = i_size_read(inode) - *offs;
+ if (i_size_read(inode) < *offs + size) {
+ size = i_size_read(inode) - *offs;
spin_unlock(&inode->i_lock);
if (size < 0) {
CDEBUG(D_EXT2, "size %llu is too short for read @%llu\n",
/* correct in-core and on-disk sizes */
if (new_size > i_size_read(inode)) {
spin_lock(&inode->i_lock);
- 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) {
+ 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) {
spin_unlock(&inode->i_lock);
- mark_inode_dirty(inode);
- } else {
+ mark_inode_dirty(inode);
+ } else {
spin_unlock(&inode->i_lock);
}
}
static int fsfilt_ext3_setup(struct super_block *sb)
{
-#if defined(HAVE_QUOTA_SUPPORT) || defined(S_PDIROPS)
- struct ext3_sb_info *sbi = EXT3_SB(sb);
-#if 0
- sbi->dx_lock = fsfilt_ext3_dx_lock;
- sbi->dx_unlock = fsfilt_ext3_dx_unlock;
-#endif
-#endif
if (!EXT3_HAS_COMPAT_FEATURE(sb,
EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
CERROR("ext3 mounted without journal\n");
#ifdef S_PDIROPS
CWARN("Enabling PDIROPS\n");
- set_opt(sbi->s_mount_opt, PDIROPS);
+ set_opt(EXT3_SB(sb)->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");
-#ifdef 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;
- set_opt(sbi->s_mount_opt, QUOTA);
-#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);
-}
-
-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 = ext3_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 */
- ext4_lock_group(sb, group);
- if (desc->bg_flags & cpu_to_le16(EXT3_BG_INODE_UNINIT)) {
- /* no inode in use in this group, just skip it */
- ext3_unlock_group(sb, group);
- continue;
- }
-
- used_count -= ext3_itable_unused_count(sb, desc);
- ext3_unlock_group(sb, group);
- }
-
- 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;
- inode = ext3_iget(sb, ino);
- 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);
- rc = lustre_get_qids(NULL, sb_dqopt(sb)->files[i], i, &id_list);
- 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*EXT3_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*EXT3_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_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)
git://git.whamcloud.com / fs / lustre-release.git / blobdiff