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net: sock_queue_err_skb() dont mess with sk_forward_alloc

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Correct sk_forward_alloc handling for error_queue would need to use a
backlog of frames that softirq handler could not deliver because socket
is owned by user thread. Or extend backlog processing to be able to
process normal and error packets.

Another possibility is to not use mem charge for error queue, this is
what I implemented in this patch.

Note: this reverts commit 29030374
(net: fix sk_forward_alloc corruptions), since we dont need to lock
socket anymore.

Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Eric Dumazet 2010-05-31 23:44:05 -07:00 • committed by David S. Miller
commit b1faf56664
4 changed files with 33 additions and 24 deletions
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6
net/ipv6/udp.c
View file

@ -466,11 +466,9 @@ void __udp6_lib_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
if (sk->sk_state != TCP_ESTABLISHED && !np->recverr)
goto out;
if (np->recverr) {
bh_lock_sock(sk);
if (np->recverr)
ipv6_icmp_error(sk, skb, err, uh->dest, ntohl(info), (u8 *)(uh+1));
bh_unlock_sock(sk);
}
sk->sk_err = err;
sk->sk_error_report(sk);
out: