From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753457AbbAPQ5a (ORCPT ); Fri, 16 Jan 2015 11:57:30 -0500 Received: from down.free-electrons.com ([37.187.137.238]:35777 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752578AbbAPQ52 (ORCPT ); Fri, 16 Jan 2015 11:57:28 -0500 From: Alexandre Belloni To: Thomas Gleixner Cc: John Stultz , Daniel Lezcano , Nicolas Ferre , Boris Brezillon , Russell King - ARM Linux , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Alexandre Belloni Subject: [PATCH v2 0/2] clocksource: don't suspend/resume when unused Date: Fri, 16 Jan 2015 17:57:17 +0100 Message-Id: <1421427439-11699-1-git-send-email-alexandre.belloni@free-electrons.com> X-Mailer: git-send-email 2.1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a quite naive implementation to track whether a clocksource is enabled. I chose not to add a member in struct clocksource and use a flag instead. I found that timekeeping.c is the only consumer for clocksource and I converted it to use clocksource_enable and clocksource_disable. Changes in v2: - removed the check on enable in timekeeping.c to ensure all clocksources are going through clocksource_enable - rework clocksource_enable to set CLOCK_SOURCE_USED when enable is successful if present Alexandre Belloni (2): clocksource: track usage clocksource: don't suspend/resume when unused include/linux/clocksource.h | 4 ++++ kernel/time/clocksource.c | 34 ++++++++++++++++++++++++++++++++-- kernel/time/timekeeping.c | 8 +++----- 3 files changed, 39 insertions(+), 7 deletions(-) -- 2.1.0