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ipv6: fix inet6_lookup_listener()

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A stupid refactoring bug in inet6_lookup_listener() needs to be fixed
in order to get proper SO_REUSEPORT behavior.

Fixes: 3b24d854cb ("tcp/dccp: do not touch listener sk_refcnt under synflood")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2016-04-09 08:01:13 -07:00 committed by David S. Miller
parent 498cd8e495
commit 03c5b53418
1 changed files with 2 additions and 2 deletions
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4
net/ipv6/inet6_hashtables.c
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@ -137,7 +137,7 @@ struct sock *inet6_lookup_listener(struct net *net,
sk_for_each(sk, &ilb->head) {
score = compute_score(sk, net, hnum, daddr, dif);
if (score > hiscore) {
hiscore = score;
reuseport = sk->sk_reuseport;
if (reuseport) {
phash = inet6_ehashfn(net, daddr, hnum,
saddr, sport);
@ -148,7 +148,7 @@ struct sock *inet6_lookup_listener(struct net *net,
matches = 1;
}
result = sk;
reuseport = sk->sk_reuseport;
hiscore = score;
} else if (score == hiscore && reuseport) {
matches++;
if (reciprocal_scale(phash, matches) == 0)