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ext4: do not try to grab the s_umount semaphore in ext4_quota_off

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It's not needed to sync the filesystem, and it fixes a lock_dep complaint.

Signed-off-by: Dmitry Monakhov <dmonakhov@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Dmitry Monakhov 2010-11-08 13:47:33 -05:00 committed by Theodore Ts'o
parent 83668e7141
commit 87009d86dc
1 changed files with 3 additions and 5 deletions
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8
fs/ext4/super.c
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@ -4570,12 +4570,10 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id,
static int ext4_quota_off(struct super_block *sb, int type)
{
/* Force all delayed allocation blocks to be allocated */
if (test_opt(sb, DELALLOC)) {
down_read(&sb->s_umount);
/* Force all delayed allocation blocks to be allocated.
* Caller already holds s_umount sem */
if (test_opt(sb, DELALLOC))
sync_filesystem(sb);
up_read(&sb->s_umount);
}
return dquot_quota_off(sb, type);
}