From: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Date: Fri, 7 Oct 2016 23:57:13 +0000 (-0700)
Subject: fs/ocfs2/super: remove deprecated create_singlethread_workqueue()
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=44be975691703cda8e23fe45296f78b287e40232;p=openwrt%2Fstaging%2Fblogic.git

fs/ocfs2/super: remove deprecated create_singlethread_workqueue()

The workqueue "ocfs2_wq" queues multiple work items viz
&osb->la_enable_wq, &journal->j_recovery_work, &os->os_orphan_scan_work,
&osb->osb_truncate_log_wq which require strict execution ordering.  Hence,
an ordered dedicated workqueue has been used.

WQ_MEM_RECLAIM has been set to ensure forward progress under memory
pressure because the workqueue is being used on a memory reclaim path.

Link: http://lkml.kernel.org/r/66279de510a7f4cfc6e386d99b7e04b3f65fb11b.1472590094.git.bhaktipriya96@gmail.com
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <joseph.qi@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 603b28d6f008..f56fe39fab04 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -2329,7 +2329,7 @@ static int ocfs2_initialize_super(struct super_block *sb,
 	}
 	cleancache_init_shared_fs(sb);
 
-	osb->ocfs2_wq = create_singlethread_workqueue("ocfs2_wq");
+	osb->ocfs2_wq = alloc_ordered_workqueue("ocfs2_wq", WQ_MEM_RECLAIM);
 	if (!osb->ocfs2_wq) {
 		status = -ENOMEM;
 		mlog_errno(status);