[PATCH 02/12] RDMA/mlx5: add DMA-buf user fence support

[Christian König]

Just add the call before taking locks.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/infiniband/hw/mlx5/odp.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c
index b103555b1f5d..6b4d980c02e8 100644
--- a/drivers/infiniband/hw/mlx5/odp.c
+++ b/drivers/infiniband/hw/mlx5/odp.c
@@ -804,6 +804,10 @@ static int pagefault_dmabuf_mr(struct mlx5_ib_mr *mr, size_t bcnt,
 	if (flags & MLX5_PF_FLAGS_ENABLE)
 		xlt_flags |= MLX5_IB_UPD_XLT_ENABLE;
 
+	err = dma_resv_sync_user_fence(umem_dmabuf->attach->dmabuf->resv);
+	if (err)
+		return err;
+
 	dma_resv_lock(umem_dmabuf->attach->dmabuf->resv, NULL);
 	err = ib_umem_dmabuf_map_pages(umem_dmabuf);
 	if (err) {
-- 
2.25.1