drm/vmwgfx: use rcu in vmw_user_dmabuf_synccpu_grab (5fbad992) · Commits · e / devices / android_kernel_fairphone_FP4

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