[PATCH] nfs4: v4 mounts should not need rpcbind running

[Steve Dickson <steved@redhat.com>]

When RPC services are created with svc_create() an
svc_unregister() is done to remove any stale registrations.

This unregister is not needed with the v4 callback
service and will cause the mount to hang if rpcbind
is not running.

This patch makes the nfs4 callback service a hide service
by setting the vs_hidden flag in the nfs4_callback_version4
structure

Signed-off-by: Steve Dickson <steved@redhat.com>
---
 fs/nfs/callback_xdr.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index c6c86a7..7c8b800 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -996,4 +996,5 @@ struct svc_version nfs4_callback_version4 = {
 	.vs_proc = nfs4_callback_procedures1,
 	.vs_xdrsize = NFS4_CALLBACK_XDRSIZE,
 	.vs_dispatch = NULL,
+	.vs_hidden = 1,
 };
-- 
1.7.4.4