netlink: use the appropriate namespace pid

This was included in OpenVZ kernels but wasn't integrated upstream.
>From git://git.openvz.org/pub/linux-2.6.24-openvz:

	commit 5c69402f18adf7276352e051ece2cf31feefab02
	Author: Alexey Dobriyan <adobriyan@openvz.org>
	Date:   Mon Dec 24 14:37:45 2007 +0300

	    netlink: fixup ->tgid to work in multiple PID namespaces

Signed-off-by: Tom Goff <thomas.goff@boeing.com>
Acked-by: Alexey Dobriyan <adobriyan@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index acbbae1..274d977 100644 (file)
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -545,7 +545,7 @@ static int netlink_autobind(struct socket *sock)
        struct hlist_head *head;
        struct sock *osk;
        struct hlist_node *node;
        struct hlist_head *head;
        struct sock *osk;
        struct hlist_node *node;

-       s32 pid = current->tgid;
+       s32 pid = task_tgid_vnr(current);

        int err;
        static s32 rover = -4097;
 
        int err;
        static s32 rover = -4097;