Commit 5ad08be7 authored Apr 07, 2017 by Chris Wilson

drm/i915: Break up long runs of freeing objects



Before freeing the next batch of objects from the worker, check if the
worker's timeslice has expired and if so, defer the next batch to the
next invocation of the worker.

Suggested-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170407102552.5781-3-chris@chris-wilson.co.uk


Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

parent e92075ff

drivers/gpu/drm/i915/i915_gem.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -4349,8 +4349,11 @@ static void __i915_gem_free_work(struct work_struct *work)
		* unbound now.
		*/

		while ((freed = llist_del_all(&i915->mm.free_list)))
		while ((freed = llist_del_all(&i915->mm.free_list))) {
		__i915_gem_free_objects(i915, freed);
		if (need_resched())
		break;
		}
		}

		static void __i915_gem_free_object_rcu(struct rcu_head *head)

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