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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: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180115122846.15193-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
This commit is contained in:
Chris Wilson 2018-01-15 12:28:45 +00:00
parent 99e48bf98d
commit beacbd1615
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/i915_gem.c
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@ -4732,7 +4732,7 @@ static void __i915_gem_free_object_rcu(struct rcu_head *head)
* detour through a worker. * detour through a worker.
*/ */
if (llist_add(&obj->freed, &i915->mm.free_list)) 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) void i915_gem_free_object(struct drm_gem_object *gem_obj)