From: Chris Wilson Date: Tue, 26 Jul 2016 11:01:53 +0000 (+0100) Subject: drm/i915: Only drop the batch-pool's object reference X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f67cbce0f18299b70da776a5d699125b06523700;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git drm/i915: Only drop the batch-pool's object reference The obj->batch_pool_link is only inspected when traversing the batch pool list and when on the batch pool list the object is referenced. Thus when freeing the batch pool list, we only need to unreference the object and do not have to worry about the obj->batch_pool_link. Signed-off-by: Chris Wilson Link: http://patchwork.freedesktop.org/patch/msgid/1469432687-22756-5-git-send-email-chris@chris-wilson.co.uk Reviewed-by: Joonas Lahtinen Link: http://patchwork.freedesktop.org/patch/msgid/1469530913-17180-4-git-send-email-chris@chris-wilson.co.uk --- diff --git a/drivers/gpu/drm/i915/i915_gem_batch_pool.c b/drivers/gpu/drm/i915/i915_gem_batch_pool.c index 3507b2753fd3..825981b5aa40 100644 --- a/drivers/gpu/drm/i915/i915_gem_batch_pool.c +++ b/drivers/gpu/drm/i915/i915_gem_batch_pool.c @@ -68,15 +68,14 @@ void i915_gem_batch_pool_fini(struct i915_gem_batch_pool *pool) WARN_ON(!mutex_is_locked(&pool->dev->struct_mutex)); for (n = 0; n < ARRAY_SIZE(pool->cache_list); n++) { - while (!list_empty(&pool->cache_list[n])) { - struct drm_i915_gem_object *obj = - list_first_entry(&pool->cache_list[n], - struct drm_i915_gem_object, - batch_pool_link); + struct drm_i915_gem_object *obj, *next; - list_del(&obj->batch_pool_link); + list_for_each_entry_safe(obj, next, + &pool->cache_list[n], + batch_pool_link) i915_gem_object_put(obj); - } + + INIT_LIST_HEAD(&pool->cache_list[n]); } }