diff options
| author | Eric Dumazet <dada1@cosmosbay.com> | 2008-11-25 21:16:35 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-11-25 21:16:35 -0800 |
| commit | 1748376b6626acf59c24e9592ac67b3fe2a0e026 (patch) | |
| tree | 65a28205daf1ca92e31389440764fc407365014e /include/net/sctp | |
| parent | c1b56878fb68e9c14070939ea4537ad4db79ffae (diff) | |
| download | linux-1748376b6626acf59c24e9592ac67b3fe2a0e026.tar.bz2 | |
net: Use a percpu_counter for sockets_allocated
Instead of using one atomic_t per protocol, use a percpu_counter
for "sockets_allocated", to reduce cache line contention on
heavy duty network servers.
Note : We revert commit (248969ae31e1b3276fc4399d67ce29a5d81e6fd9
net: af_unix can make unix_nr_socks visbile in /proc),
since it is not anymore used after sock_prot_inuse_add() addition
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sctp')
| -rw-r--r-- | include/net/sctp/sctp.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h index 23797506f593..bbb7742195b0 100644 --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@ -138,6 +138,7 @@ void sctp_write_space(struct sock *sk); unsigned int sctp_poll(struct file *file, struct socket *sock, poll_table *wait); void sctp_sock_rfree(struct sk_buff *skb); +extern struct percpu_counter sctp_sockets_allocated; /* * sctp/primitive.c |