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| author | Eric Dumazet <dada1@cosmosbay.com> | 2008-01-03 20:46:48 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 15:00:36 -0800 |
| commit | 65f7651788e18fadb2fbb7276af935d7871e1803 (patch) | |
| tree | dcad32d4344d6d11d80061773d9d1dbc9ae92223 /net/ipv6/ipv6_sockglue.c | |
| parent | 571e7682026fd0e25833d103a3eeb74be29bf199 (diff) | |
| download | blackbird-op-linux-65f7651788e18fadb2fbb7276af935d7871e1803.tar.gz blackbird-op-linux-65f7651788e18fadb2fbb7276af935d7871e1803.zip | |
[NET]: prot_inuse cleanups and optimizations
1) Cleanups (all functions are prefixed by sock_prot_inuse)
sock_prot_inc_use(prot) -> sock_prot_inuse_add(prot,-1)
sock_prot_dec_use(prot) -> sock_prot_inuse_add(prot,-1)
sock_prot_inuse() -> sock_prot_inuse_get()
New functions :
sock_prot_inuse_init() and sock_prot_inuse_free() to abstract pcounter use.
2) if CONFIG_PROC_FS=n, we can zap 'inuse' member from "struct proto",
since nobody wants to read the inuse value.
This saves 1372 bytes on i386/SMP and some cpu cycles.
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ipv6_sockglue.c')
| -rw-r--r-- | net/ipv6/ipv6_sockglue.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 20fece4ad3d8..bf2a686aa13d 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -268,8 +268,8 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, struct inet_connection_sock *icsk = inet_csk(sk); local_bh_disable(); - sock_prot_dec_use(sk->sk_prot); - sock_prot_inc_use(&tcp_prot); + sock_prot_inuse_add(sk->sk_prot, -1); + sock_prot_inuse_add(&tcp_prot, 1); local_bh_enable(); sk->sk_prot = &tcp_prot; icsk->icsk_af_ops = &ipv4_specific; @@ -282,8 +282,8 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, if (sk->sk_protocol == IPPROTO_UDPLITE) prot = &udplite_prot; local_bh_disable(); - sock_prot_dec_use(sk->sk_prot); - sock_prot_inc_use(prot); + sock_prot_inuse_add(sk->sk_prot, -1); + sock_prot_inuse_add(prot, 1); local_bh_enable(); sk->sk_prot = prot; sk->sk_socket->ops = &inet_dgram_ops; |
