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Commit d8d211a2 authored by Kirill Tkhai's avatar Kirill Tkhai Committed by David S. Miller
Browse files

net: Make extern and export get_net_ns() 



This function will be used to obtain net of tun device.

Signed-off-by: default avatarKirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bdc8587a

include/linux/socket.h

+2 −0
Original line number Diff line number Diff line
@@ -353,4 +353,6 @@ extern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen 
			  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 */

net/socket.c

+2 −1
Original line number Diff line number Diff line
@@ -990,10 +990,11 @@ static long sock_do_ioctl(struct net *net, struct socket *sock, 
 *	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)

{