From 2c64580046a122fa15bb586d8ca4fd5e4b69a1e7 Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Thu, 22 Dec 2011 08:52:03 +0000 Subject: [PATCH] netlink: wake up netlink listeners sooner (v2) 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 Signed-off-by: David S. Miller --- net/netlink/af_netlink.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index a0abfe0a537c..86a258d9af84 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -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; }