From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758664Ab3EWLaz (ORCPT ); Thu, 23 May 2013 07:30:55 -0400 Received: from mail.us.es ([193.147.175.20]:59204 "EHLO mail.us.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758651Ab3EWLaw (ORCPT ); Thu, 23 May 2013 07:30:52 -0400 X-Qmail-Scanner-Diagnostics: from 127.0.0.1 by antivirus1 (envelope-from , uid 501) with qmail-scanner-2.10 (clamdscan: 0.97.8/17262. spamassassin: 3.3.2. Clear:RC:1(127.0.0.1):SA:0(-101.7/7.5):. Processed in 1.826833 secs); 23 May 2013 11:30:50 -0000 X-Envelope-From: pneira@us.es Date: Thu, 23 May 2013 13:30:46 +0200 From: Pablo Neira Ayuso To: Simon Horman Cc: Eric Dumazet , Julian Anastasov , Ingo Molnar , Peter Zijlstra , "Paul E. McKenney" , lvs-devel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, linux-kernel@vger.kernel.org, Dipankar Sarma Subject: Re: [PATCH ipvs-next v3 2/2] ipvs: use cond_resched_rcu() helper when walking connections Message-ID: <20130523113046.GF22553@localhost> References: <1369201832-17163-1-git-send-email-horms@verge.net.au> <1369201832-17163-3-git-send-email-horms@verge.net.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1369201832-17163-3-git-send-email-horms@verge.net.au> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, May 22, 2013 at 02:50:32PM +0900, Simon Horman wrote: > This avoids the situation where walking of a large number of connections > may prevent scheduling for a long time while also avoiding excessive > calls to rcu_read_unlock() and rcu_read_lock(). > > Note that in the case of !CONFIG_PREEMPT_RCU this will > add a call to cond_resched(). Applied, thanks.