From 905c3937625d14fa4453a2643814b72b8a22d9ae Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 25 Apr 2012 21:24:30 +0200 Subject: [PATCH] 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 --- fs/ext3/super.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/fs/ext3/super.c b/fs/ext3/super.c index cf0b5921cf0f..7c08c93bb615 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -3000,7 +3000,6 @@ static ssize_t ext3_quota_write(struct super_block *sb, int type, (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 @@ static ssize_t ext3_quota_write(struct super_block *sb, int type, } 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 @@ out: inode->i_version++; inode->i_mtime = inode->i_ctime = CURRENT_TIME; ext3_mark_inode_dirty(handle, inode); - mutex_unlock(&inode->i_mutex); return len; } -- 2.34.1