diff options
Diffstat (limited to 'net/sunrpc/xprtrdma/physical_ops.c')
| -rw-r--r-- | net/sunrpc/xprtrdma/physical_ops.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/net/sunrpc/xprtrdma/physical_ops.c b/net/sunrpc/xprtrdma/physical_ops.c index 617b76f22154..dbb302ecf590 100644 --- a/net/sunrpc/xprtrdma/physical_ops.c +++ b/net/sunrpc/xprtrdma/physical_ops.c @@ -83,6 +83,18 @@ physical_op_unmap(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mr_seg *seg) return 1; } +/* DMA unmap all memory regions that were mapped for "req". + */ +static void +physical_op_unmap_sync(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req) +{ + struct ib_device *device = r_xprt->rx_ia.ri_device; + unsigned int i; + + for (i = 0; req->rl_nchunks; --req->rl_nchunks) + rpcrdma_unmap_one(device, &req->rl_segments[i++]); +} + static void physical_op_destroy(struct rpcrdma_buffer *buf) { @@ -90,6 +102,7 @@ physical_op_destroy(struct rpcrdma_buffer *buf) const struct rpcrdma_memreg_ops rpcrdma_physical_memreg_ops = { .ro_map = physical_op_map, + .ro_unmap_sync = physical_op_unmap_sync, .ro_unmap = physical_op_unmap, .ro_open = physical_op_open, .ro_maxpages = physical_op_maxpages, |