tree e694c816622ea144f320eb062d8c1c11244b0d12
parent bac2ef4b470b08e3748784eb8e84e00d3b121c20
author Chris Wilson <chris@chris-wilson.co.uk> 1496920444 +0100
committer Chris Wilson <chris@chris-wilson.co.uk> 1496921588 +0100

drm/i915: Skip adding the request to the signal tree is complete

Enabling the interrupt for the signaler takes a finite amount of time (a
few microseconds) during which it is possible for the request to
complete. Check afterwards and skip adding the request to the signal
rbtree if it complete.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170608111405.16466-3-chris@chris-wilson.co.uk