net: Make extern and export get_net_ns()
This function will be used to obtain net of tun device.
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/socket.h b/include/linux/socket.h
index 9286a5a..1ce1f76 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -353,4 +353,6 @@
unsigned int flags, struct timespec *timeout);
extern int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg,
unsigned int vlen, unsigned int flags);
+
+extern struct ns_common *get_net_ns(struct ns_common *ns);
#endif /* _LINUX_SOCKET_H */
diff --git a/net/socket.c b/net/socket.c
index d83e804..ab58e57 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -990,10 +990,11 @@
* what to do with it - that's up to the protocol still.
*/
-static struct ns_common *get_net_ns(struct ns_common *ns)
+struct ns_common *get_net_ns(struct ns_common *ns)
{
return &get_net(container_of(ns, struct net, ns))->ns;
}
+EXPORT_SYMBOL_GPL(get_net_ns);
static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg)
{