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path: root/net/sunrpc/xprtrdma/rpc_rdma.c
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Diffstat (limited to 'net/sunrpc/xprtrdma/rpc_rdma.c')
-rw-r--r--net/sunrpc/xprtrdma/rpc_rdma.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index 845586f7df47..68a39c004851 100644
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -681,6 +681,8 @@ rpcrdma_marshal_req(struct rpc_rqst *rqst)
transfertypes[rtype], transfertypes[wtype],
hdrlen, rpclen);
+ if (!rpcrdma_dma_map_regbuf(&r_xprt->rx_ia, req->rl_rdmabuf))
+ goto out_map;
req->rl_send_iov[0].addr = rdmab_addr(req->rl_rdmabuf);
req->rl_send_iov[0].length = hdrlen;
req->rl_send_iov[0].lkey = rdmab_lkey(req->rl_rdmabuf);
@@ -689,6 +691,8 @@ rpcrdma_marshal_req(struct rpc_rqst *rqst)
if (rtype == rpcrdma_areadch)
return 0;
+ if (!rpcrdma_dma_map_regbuf(&r_xprt->rx_ia, req->rl_sendbuf))
+ goto out_map;
req->rl_send_iov[1].addr = rdmab_addr(req->rl_sendbuf);
req->rl_send_iov[1].length = rpclen;
req->rl_send_iov[1].lkey = rdmab_lkey(req->rl_sendbuf);
@@ -704,6 +708,11 @@ out_overflow:
out_unmap:
r_xprt->rx_ia.ri_ops->ro_unmap_safe(r_xprt, req, false);
return PTR_ERR(iptr);
+
+out_map:
+ pr_err("rpcrdma: failed to DMA map a Send buffer\n");
+ iptr = ERR_PTR(-EIO);
+ goto out_unmap;
}
/*