From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751964AbaAOUyM (ORCPT ); Wed, 15 Jan 2014 15:54:12 -0500 Received: from cdptpa-outbound-snat.email.rr.com ([107.14.166.226]:7744 "EHLO cdptpa-oedge-vip.email.rr.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751720AbaAOUyI (ORCPT ); Wed, 15 Jan 2014 15:54:08 -0500 Date: Wed, 15 Jan 2014 15:54:05 -0500 From: Steven Rostedt To: "Paul E. McKenney" Cc: linux-kernel@vger.kernel.org, mingo@kernel.org, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, dhowells@redhat.com, edumazet@google.com, darren@dvhart.com, fweisbec@gmail.com, oleg@redhat.com, sbw@mit.edu Subject: Re: [PATCH tip/core/timers 3/4] timers: Reduce future __run_timers() latency for newly emptied list Message-ID: <20140115155405.5682a2de@gandalf.local.home> In-Reply-To: <1389763248-31297-3-git-send-email-paulmck@linux.vnet.ibm.com> References: <20140115051939.GA31164@linux.vnet.ibm.com> <1389763248-31297-1-git-send-email-paulmck@linux.vnet.ibm.com> <1389763248-31297-3-git-send-email-paulmck@linux.vnet.ibm.com> X-Mailer: Claws Mail 3.9.2 (GTK+ 2.24.22; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-RR-Connecting-IP: 107.14.168.130:25 X-Cloudmark-Score: 0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 14 Jan 2014 21:20:47 -0800 "Paul E. McKenney" wrote: > diff --git a/kernel/timer.c b/kernel/timer.c > index 295837e5e011..bdd1c00ec4ec 100644 > --- a/kernel/timer.c > +++ b/kernel/timer.c > @@ -700,6 +700,7 @@ static int detach_if_pending(struct timer_list *timer, struct tvec_base *base, > base->next_timer = base->timer_jiffies; > } > base->all_timers--; > + (void)catchup_timer_jiffies(base); Why the "(void)" ? -- Steve > return 1; > } >