The patch titled
Subject: fs/ocfs2/super: remove deprecated create_singlethread_workqueue()
has been added to the -mm tree. Its filename is
fs-ocfs2-super-remove-deprecated-create_singlethread_workqueue.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/fs-ocfs2-super-remove-deprecated-create_singlethread_workqueue.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/fs-ocfs2-super-remove-deprecated-create_singlethread_workqueue.patch
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------------------------------------------------------
From: Bhaktipriya Shridhar <bhaktipriya96@xxxxxxxxx>
Subject: 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@xxxxxxxxx
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@xxxxxxxxx>
Cc: Mark Fasheh <mfasheh@xxxxxxx>
Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
Cc: Junxiao Bi <junxiao.bi@xxxxxxxxxx>
Cc: Joseph Qi <joseph.qi@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ocfs2/super.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN fs/ocfs2/super.c~fs-ocfs2-super-remove-deprecated-create_singlethread_workqueue fs/ocfs2/super.c
--- a/fs/ocfs2/super.c~fs-ocfs2-super-remove-deprecated-create_singlethread_workqueue
+++ a/fs/ocfs2/super.c
@@ -2329,7 +2329,7 @@ static int ocfs2_initialize_super(struct
}
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);
_
Patches currently in -mm which might be from bhaktipriya96@xxxxxxxxx are
fs-ocfs2-dlmfs-remove-deprecated-create_singlethread_workqueue.patch
fs-ocfs2-cluster-remove-deprecated-create_singlethread_workqueue.patch
fs-ocfs2-super-remove-deprecated-create_singlethread_workqueue.patch
fs-ocfs2-dlm-remove-deprecated-create_singlethread_workqueue.patch
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