From 441f4c1353bc7a594dd744c69f6a1dc158dacb40 Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Tue, 26 Jan 2010 14:04:22 -0500
Subject: [PATCH] --- yaml --- r: 186359 b: refs/heads/master c:
 37498292aa97658a5d0a9bb84699ce8c1016bb74 h: refs/heads/master i:   186357:
 55ac7386f0544f4ebbcc84281d0f8cbe05664131   186355:
 d11fe7bb1963dd1a8c99c20be9b294f565029046   186351:
 9ee5828176d040560089842758b01d8048ac995e v: v3

---
 [refs]                 |  2 +-
 trunk/fs/nfsd/nfsctl.c | 18 +++++++++++++++++-
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/[refs] b/[refs]
index 67bf424adba1..ad0b6470fb32 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 68717908155a9dcd4161f4d730fea478712d9794
+refs/heads/master: 37498292aa97658a5d0a9bb84699ce8c1016bb74
diff --git a/trunk/fs/nfsd/nfsctl.c b/trunk/fs/nfsd/nfsctl.c
index f43ecd61fa81..0f0e77f2012f 100644
--- a/trunk/fs/nfsd/nfsctl.c
+++ b/trunk/fs/nfsd/nfsctl.c
@@ -988,6 +988,7 @@ static ssize_t __write_ports_delfd(char *buf)
 static ssize_t __write_ports_addxprt(char *buf)
 {
 	char transport[16];
+	struct svc_xprt *xprt;
 	int port, err;
 
 	if (sscanf(buf, "%15s %4u", transport, &port) != 2)
@@ -1003,8 +1004,23 @@ static ssize_t __write_ports_addxprt(char *buf)
 	err = svc_create_xprt(nfsd_serv, transport,
 				PF_INET, port, SVC_SOCK_ANONYMOUS);
 	if (err < 0)
-		return err;
+		goto out_err;
+
+	err = svc_create_xprt(nfsd_serv, transport,
+				PF_INET6, port, SVC_SOCK_ANONYMOUS);
+	if (err < 0 && err != -EAFNOSUPPORT)
+		goto out_close;
 	return 0;
+out_close:
+	xprt = svc_find_xprt(nfsd_serv, transport, PF_INET, port);
+	if (xprt != NULL) {
+		svc_close_xprt(xprt);
+		svc_xprt_put(xprt);
+	}
+out_err:
+	/* Decrease the count, but don't shut down the service */
+	nfsd_serv->sv_nrthreads--;
+	return err;
 }
 
 /*