linux-kernel - Re: [PATCH] drm/radeon: Remove deprecated create_singlethread

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Message-ID: <CAFNHFT-rL9P_5kFdZnPAtuHgLh059yXTZYzW7x8RuXiTg3EmFg@mail.gmail.com>
Date:	Tue, 28 Jun 2016 23:14:41 +0530
From:	Bhaktipriya Shridhar <bhaktipriya96@...il.com>
To:	David Airlie <airlied@...ux.ie>
Cc:	Tejun Heo <tj@...nel.org>,
	Maling list - DRI developers 
	<dri-devel@...ts.freedesktop.org>,
	"Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drm/radeon: Remove deprecated create_singlethread_workqueue

Please ignore this mail.
Thanks,
Bhaktipriya


On Tue, Jun 28, 2016 at 10:56 PM, Bhaktipriya Shridhar
<bhaktipriya96@...il.com> wrote:
> alloc_workqueue replaces deprecated create_singlethread_workqueue().
>
> A dedicated workqueue has been used since work items need to be flushed
> as a group rather than individually.
>
> Since the flip_queue workqueue is involved in page-flipping and is not
> being used on a memory reclaim path, WQ_MEM_RECLAIM has not been set.
>
> Since there are only a fixed number of work items, explicit concurrency
> limit is unnecessary here.
>
> Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@...il.com>
> ---
>  drivers/gpu/drm/radeon/radeon_display.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
> index 6a41b49..bbb29c7 100644
> --- a/drivers/gpu/drm/radeon/radeon_display.c
> +++ b/drivers/gpu/drm/radeon/radeon_display.c
> @@ -711,7 +711,7 @@ static void radeon_crtc_init(struct drm_device *dev, int index)
>
>         drm_mode_crtc_set_gamma_size(&radeon_crtc->base, 256);
>         radeon_crtc->crtc_id = index;
> -       radeon_crtc->flip_queue = create_singlethread_workqueue("radeon-crtc");
> +       radeon_crtc->flip_queue = alloc_workqueue("radeon-crtc", 0, 0);
>         rdev->mode_info.crtcs[index] = radeon_crtc;
>
>         if (rdev->family >= CHIP_BONAIRE) {
> --
> 2.1.4
>