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Commit d151e9ce authored by Chris Wilson's avatar Chris Wilson
Browse files

drm/i915/userptr: Only flush the workqueue if required 



To avoid waiting for work from other invalidate-range threads where
not required, only wait on the userptr cancel workqueue if we have added
some work to it.

Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170307205851.32578-2-chris@chris-wilson.co.uk


Reviewed-by: default avatarMichał Winiarski <michal.winiarski@intel.com>
Reviewed-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
parent 42953b3c

drivers/gpu/drm/i915/i915_gem_userptr.c

+2 −1
Original line number Diff line number Diff line
@@ -145,6 +145,7 @@ static void i915_gem_userptr_mn_invalidate_range_start(struct mmu_notifier *_mn, 
		del_object(mo);

	spin_unlock(&mn->lock);



	if (!list_empty(&cancelled))

		flush_workqueue(mn->wq);

}