1 files changed, 9 insertions, 1 deletions

diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 60babf0a9847..1a6c16ed7fa6 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -527,7 +527,15 @@ svc_destroy(struct svc_serv *serv)
                 printk("svc_destroy: no threads for serv=%p!\n", serv);
 
         del_timer_sync(&serv->sv_temptimer);
-
+        /*
+         * The set of xprts (contained in the sv_tempsocks and
+         * sv_permsocks lists) is now constant, since it is modified
+         * only by accepting new sockets (done by service threads in
+         * svc_recv) or aging old ones (done by sv_temptimer), or
+         * configuration changes (excluded by whatever locking the
+         * caller is using--nfsd_mutex in the case of nfsd).  So it's
+         * safe to traverse those lists and shut everything down:
+         */
         svc_close_all(serv);
 
         if (serv->sv_shutdown)