linux-kernel - [PATCH 3.4 27/32] nfsd: use "init

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Date:	Fri,  6 Dec 2013 13:52:37 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Stanislav Kinsbursky <skinsbursky@...allels.com>,
	"J. Bruce Fields" <bfields@...hat.com>,
	Weng Meiling <wengmeiling.weng@...wei.com>
Subject: [PATCH 3.4 27/32] nfsd: use "init_net" for portmapper

3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Stanislav Kinsbursky <skinsbursky@...allels.com>

commit f7fb86c6e639360ad9c253cec534819ef928a674 upstream.

There could be a situation, when NFSd was started in one network namespace, but
stopped in another one.
This will trigger kernel panic, because RPCBIND client is stored on per-net
NFSd data, and will be NULL on NFSd shutdown.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@...allels.com>
Signed-off-by: J. Bruce Fields <bfields@...hat.com>
Signed-off-by: Weng Meiling <wengmeiling.weng@...wei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 fs/nfsd/nfssvc.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -11,7 +11,6 @@
 #include <linux/module.h>
 #include <linux/fs_struct.h>
 #include <linux/swap.h>
-#include <linux/nsproxy.h>
 
 #include <linux/sunrpc/stats.h>
 #include <linux/sunrpc/svcsock.h>
@@ -330,7 +329,7 @@ static int nfsd_get_default_max_blksize(
 int nfsd_create_serv(void)
 {
 	int error;
-	struct net *net = current->nsproxy->net_ns;
+	struct net *net = &init_net;
 
 	WARN_ON(!mutex_is_locked(&nfsd_mutex));
 	if (nfsd_serv) {


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