NFS: Enable client side NFSv4.1 backchannel to use other transports
Forechannel transports get their own "bc_up" method to create an
endpoint for the backchannel service.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
[Anna Schumaker: Add forward declaration of struct net to xprt.h]
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 44a81e4..dc47067 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -1306,6 +1306,17 @@
xs_tcp_read_reply(xprt, desc) :
xs_tcp_read_callback(xprt, desc);
}
+
+static int xs_tcp_bc_up(struct svc_serv *serv, struct net *net)
+{
+ int ret;
+
+ ret = svc_create_xprt(serv, "tcp-bc", net, PF_INET, 0,
+ SVC_SOCK_ANONYMOUS);
+ if (ret < 0)
+ return ret;
+ return 0;
+}
#else
static inline int _xs_tcp_read_data(struct rpc_xprt *xprt,
struct xdr_skb_reader *desc)
@@ -2582,6 +2593,7 @@
.inject_disconnect = xs_inject_disconnect,
#ifdef CONFIG_SUNRPC_BACKCHANNEL
.bc_setup = xprt_setup_bc,
+ .bc_up = xs_tcp_bc_up,
.bc_free_rqst = xprt_free_bc_rqst,
.bc_destroy = xprt_destroy_bc,
#endif