[Intel-gfx] [PATCH] drm/i915/gem: Break up long lists of object reclaim

Chris Wilson chris at chris-wilson.co.uk
Fri Feb 21 10:09:53 UTC 2020


Call cond_resched() between each freed object in case we have a really,
really long list, and we don't want to block normal processes.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gem/i915_gem_object.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.c b/drivers/gpu/drm/i915/gem/i915_gem_object.c
index 450bd4aab8e9..deef07d299a8 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object.c
@@ -225,6 +225,7 @@ static void __i915_gem_free_objects(struct drm_i915_private *i915,
 
 		/* But keep the pointer alive for RCU-protected lookups */
 		call_rcu(&obj->rcu, __i915_gem_free_object_rcu);
+		cond_resched();
 	}
 	intel_runtime_pm_put(&i915->runtime_pm, wakeref);
 }
-- 
2.25.1



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