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| author | Jan Kara <jack@suse.cz> | 2012-04-25 21:29:42 +0200 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2012-05-15 23:34:38 +0200 |
| commit | e2a3fde75079efeb22cf1e5098d5689b664bf1d5 (patch) | |
| tree | 2e48dcc173ac5b6c5da67d97f50b88391f5d0efe | |
| parent | reiserfs: Remove i_mutex use from reiserfs_quota_write() (diff) | |
| download | linux-e2a3fde75079efeb22cf1e5098d5689b664bf1d5.tar.xz linux-e2a3fde75079efeb22cf1e5098d5689b664bf1d5.zip | |
ext2: Remove i_mutex use from ext2_quota_write()
We don't need i_mutex in ext2_quota_write() because writes to quota file
are serialized by dqio_mutex anyway. Changes to quota files outside of quota
code are forbidded and enforced by NOATIME and IMMUTABLE bits.
Signed-off-by: Jan Kara <jack@suse.cz>
| -rw-r--r-- | fs/ext2/super.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/fs/ext2/super.c b/fs/ext2/super.c index e0e8f45e9a71..7c1207c0e0c1 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -1434,7 +1434,6 @@ static ssize_t ext2_quota_write(struct super_block *sb, int type, struct buffer_head tmp_bh; struct buffer_head *bh; - mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA); while (towrite > 0) { tocopy = sb->s_blocksize - offset < towrite ? sb->s_blocksize - offset : towrite; @@ -1464,16 +1463,13 @@ static ssize_t ext2_quota_write(struct super_block *sb, int type, blk++; } out: - if (len == towrite) { - mutex_unlock(&inode->i_mutex); + if (len == towrite) return err; - } if (inode->i_size < off+len-towrite) i_size_write(inode, off+len-towrite); inode->i_version++; inode->i_mtime = inode->i_ctime = CURRENT_TIME; mark_inode_dirty(inode); - mutex_unlock(&inode->i_mutex); return len - towrite; } |