Re: [PATCH 03/62] drm/i915: Remove redundant queue_delayed_work() from throttle ioctl

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On pe, 2016-06-03 at 17:36 +0100, Chris Wilson wrote:
> We know, by design, that whilst the GPU is active (and thus we are
> throttling) the retire_worker is queued. Therefore attempting to requeue
> it with queue_delayed_work() is a no-op and we can safely remove it.
> 
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>

Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>

> ---
>  drivers/gpu/drm/i915/i915_gem.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
> index e27c9331b84b..da44715c894f 100644
> --- a/drivers/gpu/drm/i915/i915_gem.c
> +++ b/drivers/gpu/drm/i915/i915_gem.c
> @@ -4181,9 +4181,6 @@ i915_gem_ring_throttle(struct drm_device *dev, struct drm_file *file)
>  		return 0;
>  
>  	ret = __i915_wait_request(target, true, NULL, NULL);
> -	if (ret == 0)
> -		queue_delayed_work(dev_priv->wq, &dev_priv->gt.retire_work, 0);
> -
>  	i915_gem_request_unreference(target);
>  
>  	return ret;
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation
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