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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 /net/dccp/dccp.h
parent1748376b6626acf59c24e9592ac67b3fe2a0e026 (diff)
downloadop-kernel-dev-dd24c00191d5e4a1ae896aafe33c6b8095ab4bd1.zip
op-kernel-dev-dd24c00191d5e4a1ae896aafe33c6b8095ab4bd1.tar.gz
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 'net/dccp/dccp.h')
-rw-r--r--net/dccp/dccp.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index 031ce35..33a1127 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -49,7 +49,7 @@ extern int dccp_debug;
extern struct inet_hashinfo dccp_hashinfo;
-extern atomic_t dccp_orphan_count;
+extern struct percpu_counter dccp_orphan_count;
extern void dccp_time_wait(struct sock *sk, int state, int timeo);
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