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netlink: wake up netlink listeners sooner (v2)

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This patch changes it to yield sooner at halfway instead. Still not a cure-all
for listener overrun if listner is slow, but works much reliably.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
stephen hemminger 2011-12-22 08:52:03 +00:00 committed by David S. Miller
parent b57ef81ff8
commit 2c64580046
1 changed files with 1 additions and 1 deletions
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2
net/netlink/af_netlink.c
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@ -959,7 +959,7 @@ static int netlink_broadcast_deliver(struct sock *sk, struct sk_buff *skb)
skb_set_owner_r(skb, sk);
skb_queue_tail(&sk->sk_receive_queue, skb);
sk->sk_data_ready(sk, skb->len);
return atomic_read(&sk->sk_rmem_alloc) > sk->sk_rcvbuf;
return atomic_read(&sk->sk_rmem_alloc) > (sk->sk_rcvbuf >> 1);
}
return -1;
}