[Intel-gfx] [PATCH] drm/i915: Squelch any ktime/jiffie rounding errors for wait-ioctl

[Joonas Lahtinen]

On to, 2017-02-16 at 12:54 +0000, Chris Wilson wrote:
> We wait upon jiffies, but report the time elapsed using a
> high-resolution timer. This discrepancy can lead to us timing out the
> wait prior to us reporting the elapsed time as complete.
> 
> This restores the squelching lost in commit e95433c73a11 ("drm/i915:
> Rearrange i915_wait_request() accounting with callers").
> 
> Fixes: e95433c73a11 ("drm/i915: Rearrange i915_wait_request() accounting with callers")
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Matthew Auld <matthew.william.auld at gmail.com>
> Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> Cc: <drm-intel-fixes at lists.freedesktop.org> # v4.10-rc1+
> Cc: stable at vger.kernel.org

Reviewed-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>

Regards, Joonas
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation