From: Chris Wilson Date: Fri, 5 Aug 2016 09:14:24 +0000 (+0100) Subject: drm/i915: Assert that the request hasn't been retired X-Git-Tag: v4.9-rc1~41^2~40^2~7 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=209b3f7ed0e865ef0f3ffde3d623703019daeafc;p=karo-tx-linux.git drm/i915: Assert that the request hasn't been retired With all callers now not playing tricks with dropping the struct_mutex between waiting and retiring, we can assert that the request is ready to be retired. Signed-off-by: Chris Wilson Reviewed-by: Joonas Lahtinen Link: http://patchwork.freedesktop.org/patch/msgid/1470388464-28458-19-git-send-email-chris@chris-wilson.co.uk --- diff --git a/drivers/gpu/drm/i915/i915_gem_request.c b/drivers/gpu/drm/i915/i915_gem_request.c index 1f91dc8c4171..b317a672040f 100644 --- a/drivers/gpu/drm/i915/i915_gem_request.c +++ b/drivers/gpu/drm/i915/i915_gem_request.c @@ -170,7 +170,7 @@ static void i915_gem_request_retire(struct drm_i915_gem_request *request) struct i915_gem_active *active, *next; trace_i915_gem_request_retire(request); - list_del_init(&request->link); + list_del(&request->link); /* We know the GPU must have read the request to have * sent us the seqno + interrupt, so use the position @@ -228,9 +228,7 @@ void i915_gem_request_retire_upto(struct drm_i915_gem_request *req) struct drm_i915_gem_request *tmp; lockdep_assert_held(&req->i915->drm.struct_mutex); - - if (list_empty(&req->link)) - return; + GEM_BUG_ON(list_empty(&req->link)); do { tmp = list_first_entry(&engine->request_list,