diff options
Diffstat (limited to 'net/core/sock.c')
| -rw-r--r-- | net/core/sock.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/net/core/sock.c b/net/core/sock.c index 09cb3a74de7f..bb5236aee643 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -981,12 +981,31 @@ void sk_free(struct sock *sk) if (atomic_read(&sk->sk_omem_alloc)) printk(KERN_DEBUG "%s: optmem leakage (%d bytes) detected.\n", - __FUNCTION__, atomic_read(&sk->sk_omem_alloc)); + __func__, atomic_read(&sk->sk_omem_alloc)); put_net(sk->sk_net); sk_prot_free(sk->sk_prot_creator, sk); } +/* + * Last sock_put should drop referrence to sk->sk_net. It has already + * been dropped in sk_change_net. Taking referrence to stopping namespace + * is not an option. + * Take referrence to a socket to remove it from hash _alive_ and after that + * destroy it in the context of init_net. + */ +void sk_release_kernel(struct sock *sk) +{ + if (sk == NULL || sk->sk_socket == NULL) + return; + + sock_hold(sk); + sock_release(sk->sk_socket); + sk->sk_net = get_net(&init_net); + sock_put(sk); +} +EXPORT_SYMBOL(sk_release_kernel); + struct sock *sk_clone(const struct sock *sk, const gfp_t priority) { struct sock *newsk; |