RDMA/mlx5: Use odp instead of mr->umem in pagefault_mr

These are the same thing since mr always comes from odp->private. It is confusing to reference the same memory via two names. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
laijs · Aug 21, 2019 · fba0e44 · fba0e44
1 parent a705f3e
commit fba0e44
Showing 1 changed file with 5 additions and 6 deletions.
diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c
@@ -601,15 +601,15 @@ static int pagefault_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr,
 	start_idx = (io_virt - (mr->mmkey.iova & page_mask)) >> page_shift;
 	access_mask = ODP_READ_ALLOWED_BIT;
 
-	if (prefetch && !downgrade && !mr->umem->writable) {
+	if (prefetch && !downgrade && !odp->umem.writable) {
 		/* prefetch with write-access must
 		 * be supported by the MR
 		 */
 		ret = -EINVAL;
 		goto out;
 	}
 
-	if (mr->umem->writable && !downgrade)
+	if (odp->umem.writable && !downgrade)
 		access_mask |= ODP_WRITE_ALLOWED_BIT;
 
 	current_seq = READ_ONCE(odp->notifiers_seq);
@@ -619,17 +619,16 @@ static int pagefault_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr,
 	 */
 	smp_rmb();
 
-	ret = ib_umem_odp_map_dma_pages(to_ib_umem_odp(mr->umem), io_virt, size,
-					access_mask, current_seq);
+	ret = ib_umem_odp_map_dma_pages(odp, io_virt, size, access_mask,
+					current_seq);
 
 	if (ret < 0)
 		goto out;
 
 	np = ret;
 
 	mutex_lock(&odp->umem_mutex);
-	if (!ib_umem_mmu_notifier_retry(to_ib_umem_odp(mr->umem),
-					current_seq)) {
+	if (!ib_umem_mmu_notifier_retry(odp, current_seq)) {
 		/*
 		 * No need to check whether the MTTs really belong to
 		 * this MR, since ib_umem_odp_map_dma_pages already