netdev - [Patch net-next v2 2/2] netpoll: use the net namespace of current process instead of init

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Message-Id: <1359338121-10897-2-git-send-email-amwang@redhat.com>
Date:	Mon, 28 Jan 2013 09:55:21 +0800
From:	Cong Wang <amwang@...hat.com>
To:	netdev@...r.kernel.org
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"David S. Miller" <davem@...emloft.net>,
	Cong Wang <amwang@...hat.com>
Subject: [Patch net-next v2 2/2] netpoll: use the net namespace of current process instead of init_net

From: Cong Wang <amwang@...hat.com>

This will allow us to setup netconsole in a different namespace
rather than where init_net is.

Cc: Eric W. Biederman <ebiederm@...ssion.com>
Cc: David S. Miller <davem@...emloft.net>
Signed-off-by: Cong Wang <amwang@...hat.com>
---

diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index a6f39b6..331ccb9 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -1049,8 +1049,10 @@ int netpoll_setup(struct netpoll *np)
 	int err;
 
 	rtnl_lock();
-	if (np->dev_name)
-		ndev = __dev_get_by_name(&init_net, np->dev_name);
+	if (np->dev_name) {
+		struct net *net = current->nsproxy->net_ns;
+		ndev = __dev_get_by_name(net, np->dev_name);
+	}
 	if (!ndev) {
 		np_err(np, "%s doesn't exist, aborting\n", np->dev_name);
 		err = -ENODEV;
--
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