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Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6

Browse source 
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: (24 commits)
  quota: Fix possible oops in __dquot_initialize()
  ext3: Update kernel-doc comments
  jbd/2: fixed typos
  ext2: fixed typo.
  ext3: Fix debug messages in ext3_group_extend()
  jbd: Convert atomic_inc() to get_bh()
  ext3: Remove misplaced BUFFER_TRACE() in ext3_truncate()
  jbd: Fix debug message in do_get_write_access()
  jbd: Check return value of __getblk()
  ext3: Use DIV_ROUND_UP() on group desc block counting
  ext3: Return proper error code on ext3_fill_super()
  ext3: Remove unnecessary casts on bh->b_data
  ext3: Cleanup ext3_setup_super()
  quota: Fix issuing of warnings from dquot_transfer
  quota: fix dquot_disable vs dquot_transfer race v2
  jbd: Convert bitops to buffer fns
  ext3/jbd: Avoid WARN() messages when failing to write the superblock
  jbd: Use offset_in_page() instead of manual calculation
  jbd: Remove unnecessary goto statement
  jbd: Use printk_ratelimited() in journal_alloc_journal_head()
  ...
This commit is contained in:
Linus Torvalds 2010-10-27 20:13:18 -07:00
commit 7d2f280e75
15 changed files with 137 additions and 69 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

3
fs/ext2/balloc.c
View file

@ -646,10 +646,9 @@ find_next_usable_block(int start, struct buffer_head *bh, int maxblocks)
return here;
}
/*
/**
* ext2_try_to_allocate()
* @sb: superblock
* @handle: handle to this transaction
* @group: given allocation block group
* @bitmap_bh: bufferhead holds the block bitmap
* @grp_goal: given target block within the group

17
fs/ext3/balloc.c
View file

@ -792,9 +792,9 @@ find_next_usable_block(ext3_grpblk_t start, struct buffer_head *bh,
if (here < 0)
here = 0;
p = ((char *)bh->b_data) + (here >> 3);
p = bh->b_data + (here >> 3);
r = memscan(p, 0, ((maxblocks + 7) >> 3) - (here >> 3));
next = (r - ((char *)bh->b_data)) << 3;
next = (r - bh->b_data) << 3;
if (next < maxblocks && next >= start && ext3_test_allocatable(next, bh))
return next;
@ -810,8 +810,9 @@ find_next_usable_block(ext3_grpblk_t start, struct buffer_head *bh,
/**
* claim_block()
* @lock: the spin lock for this block group
* @block: the free block (group relative) to allocate
* @bh: the bufferhead containts the block group bitmap
* @bh: the buffer_head contains the block group bitmap
*
* We think we can allocate this block in this bitmap. Try to set the bit.
* If that succeeds then check that nobody has allocated and then freed the
@ -956,9 +957,11 @@ ext3_try_to_allocate(struct super_block *sb, handle_t *handle, int group,
* but we will shift to the place where start_block is,
* then start from there, when looking for a reservable space.
*
* @size: the target new reservation window size
* @my_rsv: the reservation window
*
* @group_first_block: the first block we consider to start
* @sb: the super block
*
* @start_block: the first block we consider to start
* the real search from
*
* @last_block:
@ -1084,7 +1087,7 @@ static int find_next_reservable_window(
*
* failed: we failed to find a reservation window in this group
*
* @rsv: the reservation
* @my_rsv: the reservation window
*
* @grp_goal: The goal (group-relative). It is where the search for a
* free reservable space should start from.
@ -1273,8 +1276,8 @@ static void try_to_extend_reservation(struct ext3_reserve_window_node *my_rsv,
* @group: given allocation block group
* @bitmap_bh: bufferhead holds the block bitmap
* @grp_goal: given target block within the group
* @count: target number of blocks to allocate
* @my_rsv: reservation window
* @count: target number of blocks to allocate
* @errp: pointer to store the error code
*
* This is the main function used to allocate a new block and its reservation

9
fs/ext3/ialloc.c
View file

@ -570,9 +570,14 @@ struct inode *ext3_new_inode(handle_t *handle, struct inode * dir, int mode)
ei->i_state_flags = 0;
ext3_set_inode_state(inode, EXT3_STATE_NEW);
/* See comment in ext3_iget for explanation */
if (ino >= EXT3_FIRST_INO(sb) + 1 &&
EXT3_INODE_SIZE(sb) > EXT3_GOOD_OLD_INODE_SIZE) {
ei->i_extra_isize =
(EXT3_INODE_SIZE(inode->i_sb) > EXT3_GOOD_OLD_INODE_SIZE) ?
sizeof(struct ext3_inode) - EXT3_GOOD_OLD_INODE_SIZE : 0;
sizeof(struct ext3_inode) - EXT3_GOOD_OLD_INODE_SIZE;
} else {
ei->i_extra_isize = 0;
}
ret = inode;
dquot_initialize(inode);

20
fs/ext3/inode.c
View file

@ -498,7 +498,7 @@ static ext3_fsblk_t ext3_find_goal(struct inode *inode, long block,
}
/**
* ext3_blks_to_allocate: Look up the block map and count the number
* ext3_blks_to_allocate - Look up the block map and count the number
* of direct blocks need to be allocated for the given branch.
*
* @branch: chain of indirect blocks
@ -536,14 +536,18 @@ static int ext3_blks_to_allocate(Indirect *branch, int k, unsigned long blks,
}
/**
* ext3_alloc_blocks: multiple allocate blocks needed for a branch
* ext3_alloc_blocks - multiple allocate blocks needed for a branch
* @handle: handle for this transaction
* @inode: owner
* @goal: preferred place for allocation
* @indirect_blks: the number of blocks need to allocate for indirect
* blocks
*
* @blks: number of blocks need to allocated for direct blocks
* @new_blocks: on return it will store the new block numbers for
* the indirect blocks(if needed) and the first direct block,
* @blks: on return it will store the total number of allocated
* direct blocks
* @err: here we store the error value
*
* return the number of direct blocks allocated
*/
static int ext3_alloc_blocks(handle_t *handle, struct inode *inode,
ext3_fsblk_t goal, int indirect_blks, int blks,
@ -598,9 +602,11 @@ static int ext3_alloc_blocks(handle_t *handle, struct inode *inode,
/**
* ext3_alloc_branch - allocate and set up a chain of blocks.
* @handle: handle for this transaction
* @inode: owner
* @indirect_blks: number of allocated indirect blocks
* @blks: number of allocated direct blocks
* @goal: preferred place for allocation
* @offsets: offsets (in the blocks) to store the pointers to next.
* @branch: place to store the chain in.
*
@ -700,10 +706,9 @@ static int ext3_alloc_branch(handle_t *handle, struct inode *inode,
/**
* ext3_splice_branch - splice the allocated branch onto inode.
* @handle: handle for this transaction
* @inode: owner
* @block: (logical) number of block we are adding
* @chain: chain of indirect blocks (with a missing link - see
* ext3_alloc_branch)
* @where: location of missing link
* @num: number of indirect blocks we are adding
* @blks: number of direct blocks we are adding
@ -2530,7 +2535,6 @@ void ext3_truncate(struct inode *inode)
*/
} else {
/* Shared branch grows from an indirect block */
BUFFER_TRACE(partial->bh, "get_write_access");
ext3_free_branches(handle, inode, partial->bh,
partial->p,
partial->p+1, (chain+n-1) - partial);

13
fs/ext3/resize.c
View file

@ -977,7 +977,8 @@ int ext3_group_extend(struct super_block *sb, struct ext3_super_block *es,
o_blocks_count = le32_to_cpu(es->s_blocks_count);
if (test_opt(sb, DEBUG))
printk(KERN_DEBUG "EXT3-fs: extending last group from "E3FSBLK" uto "E3FSBLK" blocks\n",
printk(KERN_DEBUG "EXT3-fs: extending last group from "E3FSBLK
" upto "E3FSBLK" blocks\n",
o_blocks_count, n_blocks_count);
if (n_blocks_count == 0 || n_blocks_count == o_blocks_count)
@ -985,7 +986,7 @@ int ext3_group_extend(struct super_block *sb, struct ext3_super_block *es,
if (n_blocks_count > (sector_t)(~0ULL) >> (sb->s_blocksize_bits - 9)) {
printk(KERN_ERR "EXT3-fs: filesystem on %s:"
" too large to resize to %lu blocks safely\n",
" too large to resize to "E3FSBLK" blocks safely\n",
sb->s_id, n_blocks_count);
if (sizeof(sector_t) < 8)
ext3_warning(sb, __func__,
@ -1065,11 +1066,11 @@ int ext3_group_extend(struct super_block *sb, struct ext3_super_block *es,
es->s_blocks_count = cpu_to_le32(o_blocks_count + add);
ext3_journal_dirty_metadata(handle, EXT3_SB(sb)->s_sbh);
mutex_unlock(&EXT3_SB(sb)->s_resize_lock);
ext3_debug("freeing blocks %lu through "E3FSBLK"\n", o_blocks_count,
o_blocks_count + add);
ext3_debug("freeing blocks "E3FSBLK" through "E3FSBLK"\n",
o_blocks_count, o_blocks_count + add);
ext3_free_blocks_sb(handle, sb, o_blocks_count, add, &freed_blocks);
ext3_debug("freed blocks "E3FSBLK" through "E3FSBLK"\n", o_blocks_count,
o_blocks_count + add);
ext3_debug("freed blocks "E3FSBLK" through "E3FSBLK"\n",
o_blocks_count, o_blocks_count + add);
if ((err = ext3_journal_stop(handle)))
goto exit_put;
if (test_opt(sb, DEBUG))

41
fs/ext3/super.c
View file

@ -1301,9 +1301,9 @@ static int ext3_setup_super(struct super_block *sb, struct ext3_super_block *es,
ext3_msg(sb, KERN_WARNING,
"warning: mounting fs with errors, "
"running e2fsck is recommended");
else if ((__s16) le16_to_cpu(es->s_max_mnt_count) >= 0 &&
else if ((__s16) le16_to_cpu(es->s_max_mnt_count) > 0 &&
le16_to_cpu(es->s_mnt_count) >=
(unsigned short) (__s16) le16_to_cpu(es->s_max_mnt_count))
le16_to_cpu(es->s_max_mnt_count))
ext3_msg(sb, KERN_WARNING,
"warning: maximal mount count reached, "
"running e2fsck is recommended");
@ -1320,7 +1320,7 @@ static int ext3_setup_super(struct super_block *sb, struct ext3_super_block *es,
valid forever! :) */
es->s_state &= cpu_to_le16(~EXT3_VALID_FS);
#endif
if (!(__s16) le16_to_cpu(es->s_max_mnt_count))
if (!le16_to_cpu(es->s_max_mnt_count))
es->s_max_mnt_count = cpu_to_le16(EXT3_DFL_MAX_MNT_COUNT);
le16_add_cpu(&es->s_mnt_count, 1);
es->s_mtime = cpu_to_le32(get_seconds());
@ -1647,7 +1647,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
* Note: s_es must be initialized as soon as possible because
* some ext3 macro-instructions depend on its value
*/
es = (struct ext3_super_block *) (((char *)bh->b_data) + offset);
es = (struct ext3_super_block *) (bh->b_data + offset);
sbi->s_es = es;
sb->s_magic = le16_to_cpu(es->s_magic);
if (sb->s_magic != EXT3_SUPER_MAGIC)
@ -1758,7 +1758,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
"error: can't read superblock on 2nd try");
goto failed_mount;
}
es = (struct ext3_super_block *)(((char *)bh->b_data) + offset);
es = (struct ext3_super_block *)(bh->b_data + offset);
sbi->s_es = es;
if (es->s_magic != cpu_to_le16(EXT3_SUPER_MAGIC)) {
ext3_msg(sb, KERN_ERR,
@ -1857,13 +1857,13 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
sbi->s_groups_count = ((le32_to_cpu(es->s_blocks_count) -
le32_to_cpu(es->s_first_data_block) - 1)
/ EXT3_BLOCKS_PER_GROUP(sb)) + 1;
db_count = (sbi->s_groups_count + EXT3_DESC_PER_BLOCK(sb) - 1) /
EXT3_DESC_PER_BLOCK(sb);
db_count = DIV_ROUND_UP(sbi->s_groups_count, EXT3_DESC_PER_BLOCK(sb));
sbi->s_group_desc = kmalloc(db_count * sizeof (struct buffer_head *),
GFP_KERNEL);
if (sbi->s_group_desc == NULL) {
ext3_msg(sb, KERN_ERR,
"error: not enough memory");
ret = -ENOMEM;
goto failed_mount;
}
@ -1951,6 +1951,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
}
if (err) {
ext3_msg(sb, KERN_ERR, "error: insufficient memory");
ret = err;
goto failed_mount3;
}
@ -2159,7 +2160,7 @@ static journal_t *ext3_get_dev_journal(struct super_block *sb,
goto out_bdev;
}
es = (struct ext3_super_block *) (((char *)bh->b_data) + offset);
es = (struct ext3_super_block *) (bh->b_data + offset);
if ((le16_to_cpu(es->s_magic) != EXT3_SUPER_MAGIC) ||
!(le32_to_cpu(es->s_feature_incompat) &
EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
@ -2352,6 +2353,21 @@ static int ext3_commit_super(struct super_block *sb,
if (!sbh)
return error;
if (buffer_write_io_error(sbh)) {
/*
* Oh, dear. A previous attempt to write the
* superblock failed. This could happen because the
* USB device was yanked out. Or it could happen to
* be a transient write error and maybe the block will
* be remapped. Nothing we can do but to retry the
* write and hope for the best.
*/
ext3_msg(sb, KERN_ERR, "previous I/O error to "
"superblock detected");
clear_buffer_write_io_error(sbh);
set_buffer_uptodate(sbh);
}
/*
* If the file system is mounted read-only, don't update the
* superblock write time. This avoids updating the superblock
@ -2368,8 +2384,15 @@ static int ext3_commit_super(struct super_block *sb,
es->s_free_inodes_count = cpu_to_le32(ext3_count_free_inodes(sb));
BUFFER_TRACE(sbh, "marking dirty");
mark_buffer_dirty(sbh);
if (sync)
if (sync) {
error = sync_dirty_buffer(sbh);
if (buffer_write_io_error(sbh)) {
ext3_msg(sb, KERN_ERR, "I/O error while writing "
"superblock");
clear_buffer_write_io_error(sbh);
set_buffer_uptodate(sbh);
}
}
return error;
}

4
fs/jbd/checkpoint.c
View file

@ -221,7 +221,7 @@ static int __wait_cp_io(journal_t *journal, transaction_t *transaction)
goto restart;
}
if (buffer_locked(bh)) {
atomic_inc(&bh->b_count);
get_bh(bh);
spin_unlock(&journal->j_list_lock);
jbd_unlock_bh_state(bh);
wait_on_buffer(bh);
@ -283,7 +283,7 @@ static int __process_buffer(journal_t *journal, struct journal_head *jh,
int ret = 0;
if (buffer_locked(bh)) {
atomic_inc(&bh->b_count);
get_bh(bh);
spin_unlock(&journal->j_list_lock);
jbd_unlock_bh_state(bh);
wait_on_buffer(bh);

8
fs/jbd/commit.c
View file

@ -587,13 +587,13 @@ void journal_commit_transaction(journal_t *journal)
/* Bump b_count to prevent truncate from stumbling over
the shadowed buffer! @@@ This can go if we ever get
rid of the BJ_IO/BJ_Shadow pairing of buffers. */
atomic_inc(&jh2bh(jh)->b_count);
get_bh(jh2bh(jh));
/* Make a temporary IO buffer with which to write it out
(this will requeue both the metadata buffer and the
temporary IO buffer). new_bh goes on BJ_IO*/
set_bit(BH_JWrite, &jh2bh(jh)->b_state);
set_buffer_jwrite(jh2bh(jh));
/*
* akpm: journal_write_metadata_buffer() sets
* new_bh->b_transaction to commit_transaction.
@ -603,7 +603,7 @@ void journal_commit_transaction(journal_t *journal)
JBUFFER_TRACE(jh, "ph3: write metadata");
flags = journal_write_metadata_buffer(commit_transaction,
jh, &new_jh, blocknr);
set_bit(BH_JWrite, &jh2bh(new_jh)->b_state);
set_buffer_jwrite(jh2bh(new_jh));
wbuf[bufs++] = jh2bh(new_jh);
/* Record the new block's tag in the current descriptor
@ -713,7 +713,7 @@ void journal_commit_transaction(journal_t *journal)
shadowed buffer */
jh = commit_transaction->t_shadow_list->b_tprev;
bh = jh2bh(jh);
clear_bit(BH_JWrite, &bh->b_state);
clear_buffer_jwrite(bh);
J_ASSERT_BH(bh, buffer_jbddirty(bh));
/* The metadata is now released for reuse, but we need

42
fs/jbd/journal.c
View file

@ -36,6 +36,7 @@
#include <linux/poison.h>
#include <linux/proc_fs.h>
#include <linux/debugfs.h>
#include <linux/ratelimit.h>
#include <asm/uaccess.h>
#include <asm/page.h>
@ -84,6 +85,7 @@ EXPORT_SYMBOL(journal_force_commit);
static int journal_convert_superblock_v1(journal_t *, journal_superblock_t *);
static void __journal_abort_soft (journal_t *journal, int errno);
static const char *journal_dev_name(journal_t *journal, char *buffer);
/*
* Helper function used to manage commit timeouts
@ -439,7 +441,7 @@ int __log_start_commit(journal_t *journal, tid_t target)
*/
if (!tid_geq(journal->j_commit_request, target)) {
/*
* We want a new commit: OK, mark the request and wakup the
* We want a new commit: OK, mark the request and wakeup the
* commit thread. We do _not_ do the commit ourselves.
*/
@ -950,6 +952,8 @@ int journal_create(journal_t *journal)
if (err)
return err;
bh = __getblk(journal->j_dev, blocknr, journal->j_blocksize);
if (unlikely(!bh))
return -ENOMEM;
lock_buffer(bh);
memset (bh->b_data, 0, journal->j_blocksize);
BUFFER_TRACE(bh, "marking dirty");
@ -1010,6 +1014,23 @@ void journal_update_superblock(journal_t *journal, int wait)
goto out;
}
if (buffer_write_io_error(bh)) {
char b[BDEVNAME_SIZE];
/*
* Oh, dear. A previous attempt to write the journal
* superblock failed. This could happen because the
* USB device was yanked out. Or it could happen to
* be a transient write error and maybe the block will
* be remapped. Nothing we can do but to retry the
* write and hope for the best.
*/
printk(KERN_ERR "JBD: previous I/O error detected "
"for journal superblock update for %s.\n",
journal_dev_name(journal, b));
clear_buffer_write_io_error(bh);
set_buffer_uptodate(bh);
}
spin_lock(&journal->j_state_lock);
jbd_debug(1,"JBD: updating superblock (start %u, seq %d, errno %d)\n",
journal->j_tail, journal->j_tail_sequence, journal->j_errno);
@ -1021,9 +1042,17 @@ void journal_update_superblock(journal_t *journal, int wait)
BUFFER_TRACE(bh, "marking dirty");
mark_buffer_dirty(bh);
if (wait)
if (wait) {
sync_dirty_buffer(bh);
else
if (buffer_write_io_error(bh)) {
char b[BDEVNAME_SIZE];
printk(KERN_ERR "JBD: I/O error detected "
"when updating journal superblock for %s.\n",
journal_dev_name(journal, b));
clear_buffer_write_io_error(bh);
set_buffer_uptodate(bh);
}
} else
write_dirty_buffer(bh, WRITE);
out:
@ -1719,7 +1748,6 @@ static void journal_destroy_journal_head_cache(void)
static struct journal_head *journal_alloc_journal_head(void)
{
struct journal_head *ret;
static unsigned long last_warning;
#ifdef CONFIG_JBD_DEBUG
atomic_inc(&nr_journal_heads);
@ -1727,11 +1755,9 @@ static struct journal_head *journal_alloc_journal_head(void)
ret = kmem_cache_alloc(journal_head_cache, GFP_NOFS);
if (ret == NULL) {
jbd_debug(1, "out of memory for journal_head\n");
if (time_after(jiffies, last_warning + 5*HZ)) {
printk(KERN_NOTICE "ENOMEM in %s, retrying.\n",
printk_ratelimited(KERN_NOTICE "ENOMEM in %s, retrying.\n",
__func__);
last_warning = jiffies;
}
while (ret == NULL) {
yield();
ret = kmem_cache_alloc(journal_head_cache, GFP_NOFS);

2
fs/jbd/recovery.c
View file

@ -296,10 +296,10 @@ int journal_skip_recovery(journal_t *journal)
#ifdef CONFIG_JBD_DEBUG
int dropped = info.end_transaction -
be32_to_cpu(journal->j_superblock->s_sequence);
#endif
jbd_debug(1,
"JBD: ignoring %d transaction%s from the journal.\n",
dropped, (dropped == 1) ? "" : "s");
#endif
journal->j_transaction_sequence = ++info.end_transaction;
}

6
fs/jbd/transaction.c
View file

@ -293,9 +293,7 @@ handle_t *journal_start(journal_t *journal, int nblocks)
jbd_free_handle(handle);
current->journal_info = NULL;
handle = ERR_PTR(err);
goto out;
}
out:
return handle;
}
@ -528,7 +526,7 @@ do_get_write_access(handle_t *handle, struct journal_head *jh,
transaction = handle->h_transaction;
journal = transaction->t_journal;
jbd_debug(5, "buffer_head %p, force_copy %d\n", jh, force_copy);
jbd_debug(5, "journal_head %p, force_copy %d\n", jh, force_copy);
JBUFFER_TRACE(jh, "entry");
repeat:
@ -713,7 +711,7 @@ do_get_write_access(handle_t *handle, struct journal_head *jh,
J_EXPECT_JH(jh, buffer_uptodate(jh2bh(jh)),
"Possible IO failure.\n");
page = jh2bh(jh)->b_page;
offset = ((unsigned long) jh2bh(jh)->b_data) & ~PAGE_MASK;
offset = offset_in_page(jh2bh(jh)->b_data);
source = kmap_atomic(page, KM_USER0);
memcpy(jh->b_frozen_data, source+offset, jh2bh(jh)->b_size);
kunmap_atomic(source, KM_USER0);

2
fs/jbd2/journal.c
View file

@ -478,7 +478,7 @@ int __jbd2_log_start_commit(journal_t *journal, tid_t target)
*/
if (!tid_geq(journal->j_commit_request, target)) {
/*
* We want a new commit: OK, mark the request and wakup the
* We want a new commit: OK, mark the request and wakeup the
* commit thread. We do _not_ do the commit ourselves.
*/

4
fs/quota/Kconfig
View file

@ -4,6 +4,7 @@
config QUOTA
bool "Quota support"
select QUOTACTL
help
If you say Y here, you will be able to set per user limits for disk
usage (also called disk quotas). Currently, it works for the
@ -65,8 +66,7 @@ config QFMT_V2
config QUOTACTL
bool
depends on XFS_QUOTA || QUOTA
default y
default n
config QUOTACTL_COMPAT
bool

30
fs/quota/dquot.c
View file

@ -1386,6 +1386,9 @@ static void __dquot_initialize(struct inode *inode, int type)
/* Avoid races with quotaoff() */
if (!sb_has_quota_active(sb, cnt))
continue;
/* We could race with quotaon or dqget() could have failed */
if (!got[cnt])
continue;
if (!inode->i_dquot[cnt]) {
inode->i_dquot[cnt] = got[cnt];
got[cnt] = NULL;
@ -1736,6 +1739,7 @@ int __dquot_transfer(struct inode *inode, struct dquot **transfer_to)
qsize_t rsv_space = 0;
struct dquot *transfer_from[MAXQUOTAS] = {};
int cnt, ret = 0;
char is_valid[MAXQUOTAS] = {};
char warntype_to[MAXQUOTAS];
char warntype_from_inodes[MAXQUOTAS], warntype_from_space[MAXQUOTAS];
@ -1757,8 +1761,15 @@ int __dquot_transfer(struct inode *inode, struct dquot **transfer_to)
space = cur_space + rsv_space;
/* Build the transfer_from list and check the limits */
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
/*
* Skip changes for same uid or gid or for turned off quota-type.
*/
if (!transfer_to[cnt])
continue;
/* Avoid races with quotaoff() */
if (!sb_has_quota_active(inode->i_sb, cnt))
continue;
is_valid[cnt] = 1;
transfer_from[cnt] = inode->i_dquot[cnt];
ret = check_idq(transfer_to[cnt], 1, warntype_to + cnt);
if (ret)
@ -1772,12 +1783,8 @@ int __dquot_transfer(struct inode *inode, struct dquot **transfer_to)
* Finally perform the needed transfer from transfer_from to transfer_to
*/
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
/*
* Skip changes for same uid or gid or for turned off quota-type.
*/
if (!transfer_to[cnt])
if (!is_valid[cnt])
continue;
/* Due to IO error we might not have transfer_from[] structure */
if (transfer_from[cnt]) {
warntype_from_inodes[cnt] =
@ -1801,18 +1808,19 @@ int __dquot_transfer(struct inode *inode, struct dquot **transfer_to)
mark_all_dquot_dirty(transfer_from);
mark_all_dquot_dirty(transfer_to);
/* Pass back references to put */
for (cnt = 0; cnt < MAXQUOTAS; cnt++)
transfer_to[cnt] = transfer_from[cnt];
warn:
flush_warnings(transfer_to, warntype_to);
flush_warnings(transfer_from, warntype_from_inodes);
flush_warnings(transfer_from, warntype_from_space);
return ret;
/* Pass back references to put */
for (cnt = 0; cnt < MAXQUOTAS; cnt++)
if (is_valid[cnt])
transfer_to[cnt] = transfer_from[cnt];
return 0;
over_quota:
spin_unlock(&dq_data_lock);
up_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
goto warn;
flush_warnings(transfer_to, warntype_to);
return ret;
}
EXPORT_SYMBOL(__dquot_transfer);

1
fs/xfs/Kconfig
View file

@ -22,6 +22,7 @@ config XFS_FS
config XFS_QUOTA
bool "XFS Quota support"
depends on XFS_FS
select QUOTACTL
help
If you say Y here, you will be able to set limits for disk usage on
a per user and/or a per group basis under XFS. XFS considers quota