Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756399AbaBEVEL (ORCPT ); Wed, 5 Feb 2014 16:04:11 -0500 Received: from mail.windriver.com ([147.11.1.11]:54513 "EHLO mail.windriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754328AbaBEUFB (ORCPT ); Wed, 5 Feb 2014 15:05:01 -0500 From: Paul Gortmaker To: , CC: stephen hemminger , "David S. Miller" , Paul Gortmaker Subject: [v2.6.34-stable 054/213] netlink: wake up netlink listeners sooner (v2) Date: Wed, 5 Feb 2014 15:00:09 -0500 Message-ID: <1391630568-49251-55-git-send-email-paul.gortmaker@windriver.com> X-Mailer: git-send-email 1.8.5.2 In-Reply-To: <1391630568-49251-1-git-send-email-paul.gortmaker@windriver.com> References: <1391630568-49251-1-git-send-email-paul.gortmaker@windriver.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: stephen hemminger ------------------- This is a commit scheduled for the next v2.6.34 longterm release. http://git.kernel.org/?p=linux/kernel/git/paulg/longterm-queue-2.6.34.git If you see a problem with using this for longterm, please comment. ------------------- commit 2c64580046a122fa15bb586d8ca4fd5e4b69a1e7 upstream. 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 Signed-off-by: Paul Gortmaker --- 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 fe6313140563..ba9f6129ff32 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -962,7 +962,7 @@ static inline int netlink_broadcast_deliver(struct sock *sk, 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; } -- 1.8.5.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/