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Commit 3bfd45f9 authored by Eric Dumazet's avatar Eric Dumazet Committed by Patrick McHardy
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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: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarPatrick McHardy <kaber@trash.net>
parent c5d277d2

net/netfilter/nf_conntrack_expect.c

+2 −2
Original line number Diff line number Diff line
@@ -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);

}