[Intel-gfx] [PATCH] drm/i915: Discard objects from mm global_list after being shrunk

[Chris Wilson]

In the shrinker, we can safely remove an empty object (obj->mm.pages ==
NULL) after having discarded the pages because we are holding the
struct_mutex.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_gem_shrinker.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/i915_gem_shrinker.c b/drivers/gpu/drm/i915/i915_gem_shrinker.c
index 0241658af16b..b504ba091c4f 100644
--- a/drivers/gpu/drm/i915/i915_gem_shrinker.c
+++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c
@@ -226,6 +226,7 @@ i915_gem_shrink(struct drm_i915_private *dev_priv,
 				mutex_lock(&obj->mm.lock);
 				if (!obj->mm.pages) {
 					__i915_gem_object_invalidate(obj);
+					list_del_init(&obj->global_list);
 					count += obj->base.size >> PAGE_SHIFT;
 				}
 				mutex_unlock(&obj->mm.lock);
-- 
2.10.1