[Intel-gfx] [PATCH 6/6] drm/i915: Only grab timestamps when needed

[Chris Wilson]

On Thu, Jan 07, 2016 at 04:36:21PM +0000, Tvrtko Ursulin wrote:
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> 
> No need to call ktime_get_raw_ns twice per unlimited wait and can
> also elimate a local variable.
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> ---
>  drivers/gpu/drm/i915/i915_gem.c | 12 +++++++-----
>  1 file changed, 7 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
> index de98dc41fb9f..c4f69579eb7a 100644
> --- a/drivers/gpu/drm/i915/i915_gem.c
> +++ b/drivers/gpu/drm/i915/i915_gem.c
> @@ -1246,7 +1246,7 @@ int __i915_wait_request(struct drm_i915_gem_request *req,
>  	int state = interruptible ? TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE;
>  	DEFINE_WAIT(wait);
>  	unsigned long timeout_expire;
> -	s64 before, now;
> +	s64 before = 0;

I prefer my version. ;)
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre