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[NET]: Make netlink_kernel_release publically available as sk_release_kernel.

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This staff will be needed for non-netlink kernel sockets, which should
also not pin a namespace like tcp_socket and icmp_socket.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Denis V. Lunev 2008-02-29 11:18:32 -08:00 • committed by David S. Miller
parent 9dfbec1fb2
commit edf0208702
3 changed files with 33 additions and 16 deletions
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13
include/net/sock.h
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@ -850,6 +850,7 @@ extern struct sock *sk_alloc(struct net *net, int family,
gfp_t priority,
struct proto *prot);
extern void sk_free(struct sock *sk);
extern void sk_release_kernel(struct sock *sk);
extern struct sock *sk_clone(const struct sock *sk,
const gfp_t priority);
@ -1333,6 +1334,18 @@ static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb, int copied_e
}
#endif
/*
* Kernel sockets, f.e. rtnl or icmp_socket, are a part of a namespace.
* They should not hold a referrence to a namespace in order to allow
* to stop it.
* Sockets after sk_change_net should be released using sk_release_kernel
*/
static inline void sk_change_net(struct sock *sk, struct net *net)
{
put_net(sk->sk_net);
sk->sk_net = net;
}
extern void sock_enable_timestamp(struct sock *sk);
extern int sock_get_timestamp(struct sock *, struct timeval __user *);
extern int sock_get_timestampns(struct sock *, struct timespec __user *);