| commit | c31504dc0d1dc853dcee509d9999169a9097a717 | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <eric.dumazet@gmail.com> | Mon Nov 15 19:58:26 2010 +0000 |
| committer | David S. Miller <davem@davemloft.net> | Tue Nov 16 11:17:43 2010 -0800 |
| tree | 8ee1d5616b7140759cf742ef89cf9f7ba1c01b20 | |
| parent | 213b15ca818adf7766cd7162c2159a6ecdd3bab8 [diff] |
udp: use atomic_inc_not_zero_hint UDP sockets refcount is usually 2, unless an incoming frame is going to be queued in receive or backlog queue. Using atomic_inc_not_zero_hint() permits to reduce latency, because processor issues less memory transactions. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>