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Commit beacbd16 authored by Chris Wilson's avatar Chris Wilson
Browse files

drm/i915: Use our singlethreaded wq for freeing objects 



As freeing the objects require serialisation on struct_mutex, we should
prefer to use our singlethreaded driver wq that is dedicated to work
requiring struct_mutex (hence serialised).The benefit should be less
clutter on the system wq, allowing it to make progress even when the
driver/struct_mutex is heavily contended.

Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180115122846.15193-1-chris@chris-wilson.co.uk


Reviewed-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
parent 99e48bf9

drivers/gpu/drm/i915/i915_gem.c

+1 −1
Original line number Diff line number Diff line
@@ -4732,7 +4732,7 @@ static void __i915_gem_free_object_rcu(struct rcu_head *head) 
	 * detour through a worker.

	 */

	if (llist_add(&obj->freed, &i915->mm.free_list))

		schedule_work(&i915->mm.free_work);

		queue_work(i915->wq, &i915->mm.free_work);

}



void i915_gem_free_object(struct drm_gem_object *gem_obj)