linux-kernel - [RFC] whci: Remove deprecated create_singlethread

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Message-ID: <20160727090915.GA24974@Karyakshetra>
Date:	Wed, 27 Jul 2016 14:39:16 +0530
From:	Bhaktipriya Shridhar <bhaktipriya96@...il.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Julia Lawall <Julia.Lawall@...6.fr>
Cc:	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	Tejun Heo <tj@...nel.org>
Subject: [RFC] whci: Remove deprecated create_singlethread_workqueue

alloc_ordered_workqueue replaces the deprecated
create_singlethread_workqueue.

The workqueue "workqueue" has multiple workitems which may require
ordering. Hence, a dedicated ordered workqueue has been used.
Since the workqueue is not being used on a memory reclaim path,
WQ_MEM_RECLAIM has not been set.

Can the workitems run concurrently? Is the ordering among work items necessary?

Thanks.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@...il.com>
---
 drivers/usb/host/whci/init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/whci/init.c b/drivers/usb/host/whci/init.c
index e363723..ad8eb57 100644
--- a/drivers/usb/host/whci/init.c
+++ b/drivers/usb/host/whci/init.c
@@ -65,7 +65,7 @@ int whc_init(struct whc *whc)
 	init_waitqueue_head(&whc->cmd_wq);
 	init_waitqueue_head(&whc->async_list_wq);
 	init_waitqueue_head(&whc->periodic_list_wq);
-	whc->workqueue = create_singlethread_workqueue(dev_name(&whc->umc->dev));
+	whc->workqueue = alloc_ordered_workqueue(dev_name(&whc->umc->dev), 0);
 	if (whc->workqueue == NULL) {
 		ret = -ENOMEM;
 		goto error;
--
2.1.4