commit b8a052d01669977f224255b0f9f2737018171ddb
author Eric Sandeen <sandeen@redhat.com> Mon Dec 14 13:00:30 2009 -0600
committer Jan Kara <jack@suse.cz> Wed Dec 23 13:44:11 2009 +0100
tree 2ef6c2e038d269f2bc4eb73e82439f0301d5c6b1
parent 4854a5f0cbb1967fc7db3ea861d97afeea78b88b

ext3: Replace lock/unlock_super() with an explicit lock for the orphan list

Use a separate lock to protect the orphan list, so we can stop
overloading the use of lock_super().

Port of ext4 commit 3b9d4ed26680771295d904a6b83e88e620780893
by Theodore Ts'o <tytso@mit.edu>.

CC: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/ext3/super.c

diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 806b8b7..97dd382 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -1928,6 +1928,7 @@
 	sb->dq_op = &ext3_quota_operations;
 #endif
 	INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */
+	mutex_init(&sbi->s_orphan_lock);
 
 	sb->s_root = NULL;