diff options
| author |   WANG Cong <xiyou.wangcong@gmail.com> | 2014-09-11 15:35:10 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-09-13 16:38:42 -0400 |
| commit | b03a9c04a3a605815c232506e1d76281afe0946f (patch) | |
| tree | 30a1f41269b63692668648a49306f855a975ba21 /net | |
| parent | ipv6: drop useless rcu_read_lock() in anycast (diff) | |
| download | linux-dev-b03a9c04a3a605815c232506e1d76281afe0946f.tar.xz linux-dev-b03a9c04a3a605815c232506e1d76281afe0946f.zip | |
ipv6: remove ipv6_sk_ac_lock
Just move rtnl lock up, so that the anycast list can be protected
by rtnl lock now.
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/anycast.c | 17 |
1 files changed, 3 insertions, 14 deletions
diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c index 3b0429bc6b5a..d10f2e2b49c6 100644 --- a/net/ipv6/anycast.c +++ b/net/ipv6/anycast.c @@ -46,10 +46,6 @@ static int ipv6_dev_ac_dec(struct net_device *dev, const struct in6_addr *addr); -/* Big ac list lock for all the sockets */ -static DEFINE_SPINLOCK(ipv6_sk_ac_lock); - - /* * socket join an anycast group */ @@ -128,10 +124,8 @@ int ipv6_sock_ac_join(struct sock *sk, int ifindex, const struct in6_addr *addr) err = ipv6_dev_ac_inc(dev, addr); if (!err) { - spin_lock_bh(&ipv6_sk_ac_lock); pac->acl_next = np->ipv6_ac_list; np->ipv6_ac_list = pac; - spin_unlock_bh(&ipv6_sk_ac_lock); pac = NULL; } @@ -152,7 +146,7 @@ int ipv6_sock_ac_drop(struct sock *sk, int ifindex, const struct in6_addr *addr) struct ipv6_ac_socklist *pac, *prev_pac; struct net *net = sock_net(sk); - spin_lock_bh(&ipv6_sk_ac_lock); + rtnl_lock(); prev_pac = NULL; for (pac = np->ipv6_ac_list; pac; pac = pac->acl_next) { if ((ifindex == 0 || pac->acl_ifindex == ifindex) && @@ -161,7 +155,7 @@ int ipv6_sock_ac_drop(struct sock *sk, int ifindex, const struct in6_addr *addr) prev_pac = pac; } if (!pac) { - spin_unlock_bh(&ipv6_sk_ac_lock); + rtnl_unlock(); return -ENOENT; } if (prev_pac) @@ -169,9 +163,6 @@ int ipv6_sock_ac_drop(struct sock *sk, int ifindex, const struct in6_addr *addr) else np->ipv6_ac_list = pac->acl_next; - spin_unlock_bh(&ipv6_sk_ac_lock); - - rtnl_lock(); dev = __dev_get_by_index(net, pac->acl_ifindex); if (dev) ipv6_dev_ac_dec(dev, &pac->acl_addr); @@ -192,13 +183,11 @@ void ipv6_sock_ac_close(struct sock *sk) if (!np->ipv6_ac_list) return; - spin_lock_bh(&ipv6_sk_ac_lock); + rtnl_lock(); pac = np->ipv6_ac_list; np->ipv6_ac_list = NULL; - spin_unlock_bh(&ipv6_sk_ac_lock); prev_index = 0; - rtnl_lock(); while (pac) { struct ipv6_ac_socklist *next = pac->acl_next; |