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Groups > linux.kernel > #1451795 > unrolled thread

[PATCH] usb: dwc2: Remove deprecated create_singlethread_workqueue

Started byBhaktipriya Shridhar <bhaktipriya96@gmail.com>
First post2016-07-28 10:30 +0200
Last post2016-08-02 21:40 +0200
Articles 3 — 3 participants

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  [PATCH] usb: dwc2:  Remove deprecated create_singlethread_workqueue Bhaktipriya Shridhar <bhaktipriya96@gmail.com> - 2016-07-28 10:30 +0200
    Re: [PATCH] usb: dwc2:  Remove deprecated  create_singlethread_workqueue Tejun Heo <tj@kernel.org> - 2016-07-29 15:20 +0200
    Re: [PATCH] usb: dwc2: Remove deprecated  create_singlethread_workqueue John Youn <John.Youn@synopsys.com> - 2016-08-02 21:40 +0200

#1451795 — [PATCH] usb: dwc2: Remove deprecated create_singlethread_workqueue

FromBhaktipriya Shridhar <bhaktipriya96@gmail.com>
Date2016-07-28 10:30 +0200
Subject[PATCH] usb: dwc2: Remove deprecated create_singlethread_workqueue
Message-ID<rZORz-3Ef-5@gated-at.bofh.it>
alloc_ordered_workqueue replaces the deprecated
create_singlethread_workqueue.

There are multiple work items on the work queue, which require
ordering. Hence, an ordered workqueue has been used.

The workqueue "wq_otg" is not being used on a memory reclaim path.
Hence, WQ_MEM_RECLAIM has not been set.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
---
 drivers/usb/dwc2/hcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index 2df3d04..df5a065 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -5040,7 +5040,7 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq)

 	/* Create new workqueue and init work */
 	retval = -ENOMEM;
-	hsotg->wq_otg = create_singlethread_workqueue("dwc2");
+	hsotg->wq_otg = alloc_ordered_workqueue("dwc2", 0);
 	if (!hsotg->wq_otg) {
 		dev_err(hsotg->dev, "Failed to create workqueue\n");
 		goto error2;
--
2.1.4

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#1452406 — Re: [PATCH] usb: dwc2: Remove deprecated create_singlethread_workqueue

FromTejun Heo <tj@kernel.org>
Date2016-07-29 15:20 +0200
SubjectRe: [PATCH] usb: dwc2: Remove deprecated create_singlethread_workqueue
Message-ID<s0fRM-55X-9@gated-at.bofh.it>
In reply to#1451795
On Thu, Jul 28, 2016 at 01:57:29PM +0530, Bhaktipriya Shridhar wrote:
> alloc_ordered_workqueue replaces the deprecated
> create_singlethread_workqueue.
> 
> There are multiple work items on the work queue, which require
> ordering. Hence, an ordered workqueue has been used.
> 
> The workqueue "wq_otg" is not being used on a memory reclaim path.
> Hence, WQ_MEM_RECLAIM has not been set.
> 
> Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>

Acked-by: Tejun Heo <tj@kernel.org>

Thanks.

-- 
tejun

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#1455428 — Re: [PATCH] usb: dwc2: Remove deprecated create_singlethread_workqueue

FromJohn Youn <John.Youn@synopsys.com>
Date2016-08-02 21:40 +0200
SubjectRe: [PATCH] usb: dwc2: Remove deprecated create_singlethread_workqueue
Message-ID<s1NHH-vc-3@gated-at.bofh.it>
In reply to#1451795
++ Felipe

On 7/28/2016 1:27 AM, Bhaktipriya Shridhar wrote:
> alloc_ordered_workqueue replaces the deprecated
> create_singlethread_workqueue.
> 
> There are multiple work items on the work queue, which require
> ordering. Hence, an ordered workqueue has been used.
> 
> The workqueue "wq_otg" is not being used on a memory reclaim path.
> Hence, WQ_MEM_RECLAIM has not been set.
> 
> Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
> ---
>  drivers/usb/dwc2/hcd.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
> index 2df3d04..df5a065 100644
> --- a/drivers/usb/dwc2/hcd.c
> +++ b/drivers/usb/dwc2/hcd.c
> @@ -5040,7 +5040,7 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq)
> 
>  	/* Create new workqueue and init work */
>  	retval = -ENOMEM;
> -	hsotg->wq_otg = create_singlethread_workqueue("dwc2");
> +	hsotg->wq_otg = alloc_ordered_workqueue("dwc2", 0);
>  	if (!hsotg->wq_otg) {
>  		dev_err(hsotg->dev, "Failed to create workqueue\n");
>  		goto error2;
> --
> 2.1.4
> 
> 


Acked-by: John Youn <johnyoun@synopsys.com>

John

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