Commit 5fbad992 authored by Maarten Lankhorst's avatar Maarten Lankhorst
Browse files

drm/vmwgfx: use rcu in vmw_user_dmabuf_synccpu_grab 



Signed-off-by: default avatarMaarten Lankhorst <maarten.lankhorst@canonical.com>
parent 39e7f6f8

drivers/gpu/drm/vmwgfx/vmwgfx_resource.c

+10 −6
Original line number Diff line number Diff line
@@ -568,13 +568,17 @@ static int vmw_user_dmabuf_synccpu_grab(struct vmw_user_dma_buffer *user_bo, 


	if (flags & drm_vmw_synccpu_allow_cs) {

		bool nonblock = !!(flags & drm_vmw_synccpu_dontblock);

		long lret;



		ret = ttm_bo_reserve(bo, true, nonblock, false, NULL);

		if (!ret) {

			ret = ttm_bo_wait(bo, false, true, nonblock);

			ttm_bo_unreserve(bo);

		}

		return ret;

		if (nonblock)

			return reservation_object_test_signaled_rcu(bo->resv, true) ? 0 : -EBUSY;



		lret = reservation_object_wait_timeout_rcu(bo->resv, true, true, MAX_SCHEDULE_TIMEOUT);

		if (!lret)

			return -EBUSY;

		else if (lret < 0)

			return lret;

		return 0;

	}



	ret = ttm_bo_synccpu_write_grab