Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932778AbcCVLBN (ORCPT ); Tue, 22 Mar 2016 07:01:13 -0400 Received: from mail-wm0-f68.google.com ([74.125.82.68]:36347 "EHLO mail-wm0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932607AbcCVLA6 (ORCPT ); Tue, 22 Mar 2016 07:00:58 -0400 From: Michal Hocko To: Andrew Morton Cc: , LKML , Tetsuo Handa , David Rientjes , Ingo Molnar , Peter Zijlstra Subject: [PATCH 1/9] sched: add schedule_timeout_idle() Date: Tue, 22 Mar 2016 12:00:18 +0100 Message-Id: <1458644426-22973-2-git-send-email-mhocko@kernel.org> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1458644426-22973-1-git-send-email-mhocko@kernel.org> References: <1458644426-22973-1-git-send-email-mhocko@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1711 Lines: 49 From: Andrew Morton This will be needed in the patch "mm, oom: introduce oom reaper". Acked-by: Michal Hocko Cc: Ingo Molnar Cc: Peter Zijlstra Signed-off-by: Andrew Morton --- include/linux/sched.h | 1 + kernel/time/timer.c | 11 +++++++++++ 2 files changed, 12 insertions(+) diff --git a/include/linux/sched.h b/include/linux/sched.h index 084ed9fba620..9cf5731472fe 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -425,6 +425,7 @@ extern signed long schedule_timeout(signed long timeout); extern signed long schedule_timeout_interruptible(signed long timeout); extern signed long schedule_timeout_killable(signed long timeout); extern signed long schedule_timeout_uninterruptible(signed long timeout); +extern signed long schedule_timeout_idle(signed long timeout); asmlinkage void schedule(void); extern void schedule_preempt_disabled(void); diff --git a/kernel/time/timer.c b/kernel/time/timer.c index d1798fa0c743..73164c3aa56b 100644 --- a/kernel/time/timer.c +++ b/kernel/time/timer.c @@ -1566,6 +1566,17 @@ signed long __sched schedule_timeout_uninterruptible(signed long timeout) } EXPORT_SYMBOL(schedule_timeout_uninterruptible); +/* + * Like schedule_timeout_uninterruptible(), except this task will not contribute + * to load average. + */ +signed long __sched schedule_timeout_idle(signed long timeout) +{ + __set_current_state(TASK_IDLE); + return schedule_timeout(timeout); +} +EXPORT_SYMBOL(schedule_timeout_idle); + #ifdef CONFIG_HOTPLUG_CPU static void migrate_timer_list(struct tvec_base *new_base, struct hlist_head *head) { -- 2.7.0