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authorDenis V. Lunev <den@openvz.org>2008-02-29 11:16:46 -0800
committerDavid S. Miller <davem@davemloft.net>2008-02-29 11:16:46 -0800
commit405666db84b984b68fc75794069f424c02e5796c (patch)
treed764573e97686f02c2a47fc7da96aefe97cbc458 /net/ipv6/icmp.c
parentb7e729c4b4778aac4dbbec9dc070acde93071f4d (diff)
downloadlinux-405666db84b984b68fc75794069f424c02e5796c.tar.bz2
[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/ipv6/icmp.c')
-rw-r--r--net/ipv6/icmp.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 875bdc725dc4..18f220a04486 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -90,11 +90,11 @@ static struct inet6_protocol icmpv6_protocol = {
.flags = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
};
-static __inline__ int icmpv6_xmit_lock(void)
+static __inline__ int icmpv6_xmit_lock(struct sock *sk)
{
local_bh_disable();
- if (unlikely(!spin_trylock(&icmpv6_sk->sk_lock.slock))) {
+ if (unlikely(!spin_trylock(&sk->sk_lock.slock))) {
/* This can happen if the output path (f.e. SIT or
* ip6ip6 tunnel) signals dst_link_failure() for an
* outgoing ICMP6 packet.
@@ -105,9 +105,9 @@ static __inline__ int icmpv6_xmit_lock(void)
return 0;
}
-static __inline__ void icmpv6_xmit_unlock(void)
+static __inline__ void icmpv6_xmit_unlock(struct sock *sk)
{
- spin_unlock_bh(&icmpv6_sk->sk_lock.slock);
+ spin_unlock_bh(&sk->sk_lock.slock);
}
/*
@@ -389,12 +389,12 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
fl.fl_icmp_code = code;
security_skb_classify_flow(skb, &fl);
- if (icmpv6_xmit_lock())
- return;
-
sk = icmpv6_sk;
np = inet6_sk(sk);
+ if (icmpv6_xmit_lock(sk))
+ return;
+
if (!icmpv6_xrlim_allow(sk, type, &fl))
goto out;
@@ -498,7 +498,7 @@ out_put:
out_dst_release:
dst_release(dst);
out:
- icmpv6_xmit_unlock();
+ icmpv6_xmit_unlock(sk);
}
EXPORT_SYMBOL(icmpv6_send);
@@ -535,12 +535,12 @@ static void icmpv6_echo_reply(struct sk_buff *skb)
fl.fl_icmp_type = ICMPV6_ECHO_REPLY;
security_skb_classify_flow(skb, &fl);
- if (icmpv6_xmit_lock())
- return;
-
sk = icmpv6_sk;
np = inet6_sk(sk);
+ if (icmpv6_xmit_lock(sk))
+ return;
+
if (!fl.oif && ipv6_addr_is_multicast(&fl.fl6_dst))
fl.oif = np->mcast_oif;
@@ -584,7 +584,7 @@ out_put:
in6_dev_put(idev);
dst_release(dst);
out:
- icmpv6_xmit_unlock();
+ icmpv6_xmit_unlock(sk);
}
static void icmpv6_notify(struct sk_buff *skb, int type, int code, __be32 info)