Commit f30bceab authored by Christian König's avatar Christian König
Browse files

RDMA: use dma_resv_wait() instead of extracting the fence 



Use dma_resv_wait() instead of extracting the exclusive fence and
waiting on it manually.

Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Reviewed-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: default avatarJason Gunthorpe <jgg@nvidia.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Maor Gottlieb <maorg@nvidia.com>
Cc: Gal Pressman <galpress@amazon.com>
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Link: https://patchwork.freedesktop.org/patch/msgid/20220321135856.1331-4-christian.koenig@amd.com
parent 0941a4e3

drivers/infiniband/core/umem_dmabuf.c

+2 −6
Original line number Diff line number Diff line
@@ -16,7 +16,6 @@ int ib_umem_dmabuf_map_pages(struct ib_umem_dmabuf *umem_dmabuf) 
{

	struct sg_table *sgt;

	struct scatterlist *sg;

	struct dma_fence *fence;

	unsigned long start, end, cur = 0;

	unsigned int nmap = 0;

	int i;
@@ -68,11 +67,8 @@ int ib_umem_dmabuf_map_pages(struct ib_umem_dmabuf *umem_dmabuf) 
	 * may be not up-to-date. Wait for the exporter to finish

	 * the migration.

	 */

	fence = dma_resv_excl_fence(umem_dmabuf->attach->dmabuf->resv);

	if (fence)

		return dma_fence_wait(fence, false);



	return 0;

	return dma_resv_wait_timeout(umem_dmabuf->attach->dmabuf->resv, false,

				     false, MAX_SCHEDULE_TIMEOUT);

}

EXPORT_SYMBOL(ib_umem_dmabuf_map_pages);