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As we handoff the GPU reset to the waiter, we need to check we don't miss a wakeup if it has already been sent prior to us starting the wait. v2: Tweak checking for reset to be clear to the need before sleeping after changing the task state. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: http://patchwork.freedesktop.org/patch/msgid/20170223074422.4125-16-chris@chris-wilson.co.uk Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>