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authorEric Dumazet <dada1@cosmosbay.com>2008-11-25 21:17:14 -0800
committerDavid S. Miller <davem@davemloft.net>2008-11-25 21:17:14 -0800
commitdd24c00191d5e4a1ae896aafe33c6b8095ab4bd1 (patch)
treee955c09e0b288e50c706b6ee409229d5a930c80c /include/net/sock.h
parent1748376b6626acf59c24e9592ac67b3fe2a0e026 (diff)
net: Use a percpu_counter for orphan_count
Instead of using one atomic_t per protocol, use a percpu_counter for "orphan_count", to reduce cache line contention on heavy duty network servers. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sock.h')
-rw-r--r--include/net/sock.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index a2a3890959c4..5a3a151bd730 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -666,7 +666,7 @@ struct proto {
unsigned int obj_size;
int slab_flags;
- atomic_t *orphan_count;
+ struct percpu_counter *orphan_count;
struct request_sock_ops *rsk_prot;
struct timewait_sock_ops *twsk_prot;