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@xxxxxxxxxx>
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index a28ca268a51c..d81cdd4b0edc 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4382,8 +4382,11 @@ 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)
--
2.11.0
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