diff options
| author | xeb@mail.ru <xeb@mail.ru> | 2012-08-24 01:07:38 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-02 09:47:22 -0700 |
| commit | 928863a39f0ee47af97e7e17b909334dcb06cf1e (patch) | |
| tree | 50912928ba0d92029764aa2eefab739f91dfc0f0 /net | |
| parent | f8df5b8a9dec89726e6bf8a2073c72a533c6d0c5 (diff) | |
l2tp: avoid to use synchronize_rcu in tunnel free function
[ Upstream commit 99469c32f79a32d8481f87be0d3c66dad286f4ec ]
Avoid to use synchronize_rcu in l2tp_tunnel_free because context may be
atomic.
Signed-off-by: Dmitry Kozlov <xeb@mail.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/l2tp/l2tp_core.c | 3 | ||||
| -rw-r--r-- | net/l2tp/l2tp_core.h | 1 |
2 files changed, 2 insertions, 2 deletions
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c index 71c292e3e039..6a3d680c74fc 100644 --- a/net/l2tp/l2tp_core.c +++ b/net/l2tp/l2tp_core.c @@ -1252,11 +1252,10 @@ static void l2tp_tunnel_free(struct l2tp_tunnel *tunnel) /* Remove from tunnel list */ spin_lock_bh(&pn->l2tp_tunnel_list_lock); list_del_rcu(&tunnel->list); + kfree_rcu(tunnel, rcu); spin_unlock_bh(&pn->l2tp_tunnel_list_lock); - synchronize_rcu(); atomic_dec(&l2tp_tunnel_count); - kfree(tunnel); } /* Create a socket for the tunnel, if one isn't set up by diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h index a16a48e79fab..439379484bfc 100644 --- a/net/l2tp/l2tp_core.h +++ b/net/l2tp/l2tp_core.h @@ -157,6 +157,7 @@ struct l2tp_tunnel_cfg { struct l2tp_tunnel { int magic; /* Should be L2TP_TUNNEL_MAGIC */ + struct rcu_head rcu; rwlock_t hlist_lock; /* protect session_hlist */ struct hlist_head session_hlist[L2TP_HASH_SIZE]; /* hashed list of sessions, |