[Intel-gfx] [PATCH v6 62/64] drm/i915: Keep userpointer bindings if seqcount is unchanged, v2.

[Thomas Hellström]

On 1/5/21 4:35 PM, Maarten Lankhorst wrote:
> Instead of force unbinding and rebinding every time, we try to check
> if our notifier seqcount is still correct when pages are bound. This
> way we only rebind userptr when we need to, and prevent stalls.
>
> Changes since v1:
> - Missing mutex_unlock, reported by kbuild.
>
> Reported-by: kernel test robot <lkp at intel.com>
> Reported-by: Dan Carpenter <dan.carpenter at oracle.com>
>
> Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>

Reviewed-by: Thomas Hellström <thomas.hellstrom at intel.com>