nfs41: sunrpc: add a struct svc_xprt pointer to struct svc_serv for backchannel use

This svc_xprt is passed on to the callback service thread to be later used
to processes incoming svc_rqst's

Signed-off-by: Benny Halevy <bhalevy@panasas.com>

2 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 16043c4a8bf4..ea8009695c69 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -103,6 +103,7 @@ struct svc_serv {
         spinlock_t              sv_cb_lock;     /* protects the svc_cb_list */
         wait_queue_head_t       sv_cb_waitq;    /* sleep here if there are no
                                                  * entries in the svc_cb_list */
+        struct svc_xprt         *bc_xprt;
 #endif /* CONFIG_NFS_V4_1 */
 };
 
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 06b52e465f47..b35048fabe22 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -487,6 +487,10 @@ svc_destroy(struct svc_serv *serv)
         if (svc_serv_is_pooled(serv))
                 svc_pool_map_put();
 
+#if defined(CONFIG_NFS_V4_1)
+        svc_sock_destroy(serv->bc_xprt);
+#endif /* CONFIG_NFS_V4_1 */
+
         svc_unregister(serv);
         kfree(serv->sv_pools);
         kfree(serv);