fs/ocfs2/super: remove deprecated create_singlethread_workqueue()
authorBhaktipriya Shridhar <bhaktipriya96@gmail.com>
Fri, 7 Oct 2016 23:57:13 +0000 (16:57 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 8 Oct 2016 01:46:26 +0000 (18:46 -0700)
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>
fs/ocfs2/super.c

index 603b28d6f0082b7e7a7740f785faeabe281252ef..f56fe39fab04010174c6b300b32f69c52c6ac69c 100644 (file)
@@ -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);