From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753492Ab2L2Qrv (ORCPT ); Sat, 29 Dec 2012 11:47:51 -0500 Received: from mail-wg0-f43.google.com ([74.125.82.43]:65359 "EHLO mail-wg0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752363Ab2L2Qnd (ORCPT ); Sat, 29 Dec 2012 11:43:33 -0500 From: Frederic Weisbecker To: LKML Cc: Frederic Weisbecker , Alessio Igor Bogani , Andrew Morton , Chris Metcalf , Christoph Lameter , Geoff Levand , Gilad Ben Yossef , Hakan Akkan , Ingo Molnar , "Paul E. McKenney" , Paul Gortmaker , Peter Zijlstra , Steven Rostedt , Thomas Gleixner Subject: [PATCH 08/27] nohz: Trace timekeeping update Date: Sat, 29 Dec 2012 17:42:47 +0100 Message-Id: <1356799386-4212-9-git-send-email-fweisbec@gmail.com> X-Mailer: git-send-email 1.7.5.4 In-Reply-To: <1356799386-4212-1-git-send-email-fweisbec@gmail.com> References: <1356799386-4212-1-git-send-email-fweisbec@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Not for merge. This may become a real tracepoint. Signed-off-by: Frederic Weisbecker Cc: Alessio Igor Bogani Cc: Andrew Morton Cc: Chris Metcalf Cc: Christoph Lameter Cc: Geoff Levand Cc: Gilad Ben Yossef Cc: Hakan Akkan Cc: Ingo Molnar Cc: Paul E. McKenney Cc: Paul Gortmaker Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Thomas Gleixner --- kernel/time/tick-sched.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index f19e8bf..ab3aa14 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -118,8 +118,10 @@ static void tick_sched_do_timer(ktime_t now) #endif /* Check, if the jiffies need an update */ - if (tick_do_timer_cpu == cpu) + if (tick_do_timer_cpu == cpu) { + trace_printk("do timekeeping\n"); tick_do_update_jiffies64(now); + } } static void tick_sched_handle(struct tick_sched *ts, struct pt_regs *regs) -- 1.7.5.4