nfsd41: modify nfsd4.1 backchannel to use new xprt class

This patch enables the use of the nfsv4.1 backchannel.

Signed-off-by: Alexandros Batsakis <batsakis@netapp.com>
[initialize rpc_create_args.bc_xprt too]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

1 files changed, 6 insertions, 2 deletions

diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 89f23eddb8f6..24e8d78f8dde 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -48,6 +48,7 @@
 #include <linux/nfsd/state.h>
 #include <linux/sunrpc/sched.h>
 #include <linux/nfs4.h>
+#include <linux/sunrpc/xprtsock.h>
 
 #define NFSDDBG_FACILITY                NFSDDBG_PROC
 
@@ -483,7 +484,7 @@ int setup_callback_client(struct nfs4_client *clp)
                 .to_retries     = 0,
         };
         struct rpc_create_args args = {
-                .protocol       = IPPROTO_TCP,
+                .protocol       = XPRT_TRANSPORT_TCP,
                 .address        = (struct sockaddr *) &cb->cb_addr,
                 .addrsize       = cb->cb_addrlen,
                 .timeout        = &timeparms,
@@ -498,7 +499,10 @@ int setup_callback_client(struct nfs4_client *clp)
 
         if (!clp->cl_principal && (clp->cl_flavor >= RPC_AUTH_GSS_KRB5))
                 return -EINVAL;
-
+        if (cb->cb_minorversion) {
+                args.bc_xprt = clp->cl_cb_xprt;
+                args.protocol = XPRT_TRANSPORT_BC_TCP;
+        }
         /* Create RPC client */
         client = rpc_create(&args);
         if (IS_ERR(client)) {