[PATCH 4.10 04/29] drm/i915: Squelch any ktime/jiffie rounding errors for wait-ioctl

4.10-stable review patch. If anyone has any objections, please let me know. -- From: Chris Wilson commit 89cf83d4e065ff9fbd2ddc674489c8058eeca758 upstream. We wait upon jiffies, but report the time elapsed using a high-resolution timer. This

[PATCH 4.10 04/29] drm/i915: Squelch any ktime/jiffie rounding errors for wait-ioctl

4.10-stable review patch. If anyone has any objections, please let me know. -- From: Chris Wilson commit 89cf83d4e065ff9fbd2ddc674489c8058eeca758 upstream. We wait upon jiffies, but report the time elapsed using a high-resolution timer. This discrepancy can lead to us timing