ext3: Remove i_mutex use from ext3_quota_write()
We don't need i_mutex in ext3_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>
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index cf0b592..7c08c93 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -3000,7 +3000,6 @@
(unsigned long long)off, (unsigned long long)len);
return -EIO;
}
- mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA);
bh = ext3_bread(handle, inode, blk, 1, &err);
if (!bh)
goto out;
@@ -3024,10 +3023,8 @@
}
brelse(bh);
out:
- if (err) {
- mutex_unlock(&inode->i_mutex);
+ if (err)
return err;
- }
if (inode->i_size < off + len) {
i_size_write(inode, off + len);
EXT3_I(inode)->i_disksize = inode->i_size;
@@ -3035,7 +3032,6 @@
inode->i_version++;
inode->i_mtime = inode->i_ctime = CURRENT_TIME;
ext3_mark_inode_dirty(handle, inode);
- mutex_unlock(&inode->i_mutex);
return len;
}