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netfilter: nf_conntrack: one less atomic op in nf_ct_expect_insert() 

Instead of doing atomic_inc(&exp->use) twice,
call atomic_add(2, &exp->use);

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
hifive-unleashed-5.1
Eric Dumazet 2010-11-16 10:19:18 +01:00 committed by Patrick McHardy
parent c5d277d29a
commit 3bfd45f93c
1 changed files with 2 additions and 2 deletions
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4
net/netfilter/nf_conntrack_expect.c
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@ -323,7 +323,8 @@ static void nf_ct_expect_insert(struct nf_conntrack_expect *exp)
const struct nf_conntrack_expect_policy *p;
unsigned int h = nf_ct_expect_dst_hash(&exp->tuple);
atomic_inc(&exp->use);
/* two references : one for hash insert, one for the timer */
atomic_add(2, &exp->use);
if (master_help) {
hlist_add_head(&exp->lnode, &master_help->expectations);
@ -345,7 +346,6 @@ static void nf_ct_expect_insert(struct nf_conntrack_expect *exp)
}
add_timer(&exp->timeout);
atomic_inc(&exp->use);
NF_CT_STAT_INC(net, expect_create);
}