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authorDenis V. Lunev <den@openvz.org>2008-02-29 11:18:32 -0800
committerDavid S. Miller <davem@davemloft.net>2008-02-29 11:18:32 -0800
commitedf0208702007ec1f6a36756fdd005f771a4cf17 (patch)
treef323141ddde44db532d984ea7bf769a05220aa0c /include/net/sock.h
parent9dfbec1fb2bedff6b118504055cd9f0485edba45 (diff)
[NET]: Make netlink_kernel_release publically available as sk_release_kernel.
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>
Diffstat (limited to 'include/net/sock.h')
-rw-r--r--include/net/sock.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index fd987608765..39112e75411 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -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 *);