From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756283Ab3BANd6 (ORCPT ); Fri, 1 Feb 2013 08:33:58 -0500 Received: from mail-da0-f51.google.com ([209.85.210.51]:46056 "EHLO mail-da0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754063Ab3BANd4 (ORCPT ); Fri, 1 Feb 2013 08:33:56 -0500 From: anish kumar To: akpm@linux-foundation.org, dzickus@redhat.com, tglx@linutronix.de, mingo@kernel.org, chuansheng.liu@intel.com, linux-kernel@vger.kernel.org Cc: anish kumar Subject: [PATCH] [Watchdog][Trivial] Added comments to explain watchdog_disabled variable Date: Fri, 1 Feb 2013 19:03:23 +0530 Message-Id: <1359725603-20471-1-git-send-email-anish198519851985@gmail.com> X-Mailer: git-send-email 1.7.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: anish kumar This watchdog_disabled flag is bit of cryptic.Howerver it's usefullnes is multifold. Uses are: 1. Check if smpboot_register_percpu_thread function passed. 2. Makes sure that user enables and disables the watchdog in sequence i.e. enable watchdog->disable watchdog->enable watchdog Unlike enable watchdog->enable watchdog which is wrong. Signed-off-by: anish kumar --- kernel/watchdog.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/kernel/watchdog.c b/kernel/watchdog.c index 75a2ab3..6ef638b 100644 --- a/kernel/watchdog.c +++ b/kernel/watchdog.c @@ -155,6 +155,7 @@ void touch_all_softlockup_watchdogs(void) for_each_online_cpu(cpu) per_cpu(watchdog_touch_ts, cpu) = 0; } +EXPORT_SYMBOL(touch_all_softlockup_watchdogs); #ifdef CONFIG_HARDLOCKUP_DETECTOR void touch_nmi_watchdog(void) -- 1.7.1