Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752667AbaBGOkm (ORCPT ); Fri, 7 Feb 2014 09:40:42 -0500 Received: from terminus.zytor.com ([198.137.202.10]:55937 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751969AbaBGOkk (ORCPT ); Fri, 7 Feb 2014 09:40:40 -0500 Date: Fri, 7 Feb 2014 06:40:16 -0800 From: tip-bot for Shaibal Dutta Message-ID: Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@kernel.org, shaibal.dutta@linaro.org, zoran.markovic@linaro.org, john.stultz@linaro.org, shaibal.dutta@broadcom.com, tglx@linutronix.de Reply-To: mingo@kernel.org, hpa@zytor.com, linux-kernel@vger.kernel.org, shaibal.dutta@linaro.org, zoran.markovic@linaro.org, john.stultz@linaro.org, shaibal.dutta@broadcom.com, tglx@linutronix.de In-Reply-To: <1391195904-12497-1-git-send-email-zoran.markovic@linaro.org> References: <1391195904-12497-1-git-send-email-zoran.markovic@linaro.org> To: linux-tip-commits@vger.kernel.org Subject: [tip:timers/core] timekeeping: Move clock sync work to power efficient workqueue Git-Commit-ID: e8b175946c16d7001b22620f52d78ab497efc9d0 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.1 (terminus.zytor.com [127.0.0.1]); Fri, 07 Feb 2014 06:40:23 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: e8b175946c16d7001b22620f52d78ab497efc9d0 Gitweb: http://git.kernel.org/tip/e8b175946c16d7001b22620f52d78ab497efc9d0 Author: Shaibal Dutta AuthorDate: Fri, 31 Jan 2014 11:18:24 -0800 Committer: Thomas Gleixner CommitDate: Fri, 7 Feb 2014 15:34:28 +0100 timekeeping: Move clock sync work to power efficient workqueue For better use of CPU idle time, allow the scheduler to select the CPU on which the CMOS clock sync work would be scheduled. This improves idle residency time and conserver power. This functionality is enabled when CONFIG_WQ_POWER_EFFICIENT is selected. Signed-off-by: Shaibal Dutta [zoran.markovic@linaro.org: Added commit message. Aligned code.] Signed-off-by: Zoran Markovic Cc: John Stultz Link: http://lkml.kernel.org/r/1391195904-12497-1-git-send-email-zoran.markovic@linaro.org Signed-off-by: Thomas Gleixner --- kernel/time/ntp.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index af8d1d4..419a52c 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c @@ -514,12 +514,13 @@ static void sync_cmos_clock(struct work_struct *work) next.tv_sec++; next.tv_nsec -= NSEC_PER_SEC; } - schedule_delayed_work(&sync_cmos_work, timespec_to_jiffies(&next)); + queue_delayed_work(system_power_efficient_wq, + &sync_cmos_work, timespec_to_jiffies(&next)); } void ntp_notify_cmos_timer(void) { - schedule_delayed_work(&sync_cmos_work, 0); + queue_delayed_work(system_power_efficient_wq, &sync_cmos_work, 0); } #else -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/