| commit | 0e1efe9d5e10921f1e2152b108e013605fca3c9f | |
| author | Eric Dumazet <edumazet@google.com> | |
| Wed, 5 Dec 2012 09:18:10 +0000 (5 09:18 +0000) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Wed, 5 Dec 2012 21:01:28 +0000 (5 16:01 -0500) | ||
| tree | c254570a9058345ea2eb1f319cc5c88cfe8c65ee | treesnapshot (tar.gz zip) |
| parent | cc86802805b5d714a5dc80fe4edecaf1368b09ed | commitdiff |
ipv6: avoid taking locks at socket dismantle
ipv6_sock_mc_close() is called for ipv6 sockets at close time, and most
of them don't use multicast.
Add a test to avoid contention on a shared spinlock.
Same heuristic applies for ipv6_sock_ac_close(), to avoid contention
on a shared rwlock.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ipv6_sock_mc_close() is called for ipv6 sockets at close time, and most
of them don't use multicast.
Add a test to avoid contention on a shared spinlock.
Same heuristic applies for ipv6_sock_ac_close(), to avoid contention
on a shared rwlock.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| net/ipv6/anycast.c | diffblobblamehistory | |
| net/ipv6/mcast.c | diffblobblamehistory |