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[PATCH 7/9] fs/ocfs2/super: Remove deprecated create_singlethread_workqueue

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  [PATCH 7/9] fs/ocfs2/super: Remove deprecated  create_singlethread_workqueue Bhaktipriya Shridhar <bhaktipriya96@gmail.com> - 2016-08-30 19:50 +0200

#1472722 — [PATCH 7/9] 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.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
---
 fs/ocfs2/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index d7cae33..af5285d 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -2330,7 +2330,7 @@ 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);
--
2.1.4

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