diff options
| author | Denis V. Lunev <den@openvz.org> | 2008-02-29 11:16:46 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-02-29 11:16:46 -0800 |
| commit | 405666db84b984b68fc75794069f424c02e5796c (patch) | |
| tree | d764573e97686f02c2a47fc7da96aefe97cbc458 /net/ipv4 | |
| parent | b7e729c4b4778aac4dbbec9dc070acde93071f4d (diff) | |
[ICMP]: Pass proper ICMP socket into icmp(v6)_xmit_(un)lock.
We have to get socket lock inside icmp(v6)_xmit_lock/unlock. The socket
is get from global variable now. When this code became namespaces, one
should pass a namespace and get socket from it.
Though, above is useless. Socket is available in the caller, just pass
it inside. This saves a bit of code now and saves more later.
add/remove: 0/0 grow/shrink: 1/3 up/down: 1/-169 (-168)
function old new delta
icmp_rcv 718 719 +1
icmpv6_rcv 2343 2303 -40
icmp_send 1566 1518 -48
icmp_reply 549 468 -81
Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/icmp.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c index 3a4da43d830..9bcf263f06c 100644 --- a/net/ipv4/icmp.c +++ b/net/ipv4/icmp.c @@ -232,11 +232,11 @@ static const struct icmp_control icmp_pointers[NR_ICMP_TYPES+1]; static DEFINE_PER_CPU(struct sock *, __icmp_sk) = NULL; #define icmp_sk __get_cpu_var(__icmp_sk) -static inline int icmp_xmit_lock(void) +static inline int icmp_xmit_lock(struct sock *sk) { local_bh_disable(); - if (unlikely(!spin_trylock(&icmp_sk->sk_lock.slock))) { + if (unlikely(!spin_trylock(&sk->sk_lock.slock))) { /* This can happen if the output path signals a * dst_link_failure() for an outgoing ICMP packet. */ @@ -246,9 +246,9 @@ static inline int icmp_xmit_lock(void) return 0; } -static inline void icmp_xmit_unlock(void) +static inline void icmp_xmit_unlock(struct sock *sk) { - spin_unlock_bh(&icmp_sk->sk_lock.slock); + spin_unlock_bh(&sk->sk_lock.slock); } /* @@ -387,7 +387,7 @@ static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb) if (ip_options_echo(&icmp_param->replyopts, skb)) return; - if (icmp_xmit_lock()) + if (icmp_xmit_lock(sk)) return; icmp_param->data.icmph.checksum = 0; @@ -415,7 +415,7 @@ static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb) icmp_push_reply(icmp_param, &ipc, rt); ip_rt_put(rt); out_unlock: - icmp_xmit_unlock(); + icmp_xmit_unlock(sk); } @@ -440,6 +440,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info) __be32 saddr; u8 tos; struct net *net; + struct sock *sk = icmp_sk; if (!rt) goto out; @@ -507,7 +508,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info) } } - if (icmp_xmit_lock()) + if (icmp_xmit_lock(sk)) return; /* @@ -546,7 +547,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info) icmp_param.data.icmph.checksum = 0; icmp_param.skb = skb_in; icmp_param.offset = skb_network_offset(skb_in); - inet_sk(icmp_sk)->tos = tos; + inet_sk(sk)->tos = tos; ipc.addr = iph->saddr; ipc.opt = &icmp_param.replyopts; @@ -654,7 +655,7 @@ route_done: ende: ip_rt_put(rt); out_unlock: - icmp_xmit_unlock(); + icmp_xmit_unlock(sk); out:; } |