From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751473AbdE3Vmm (ORCPT ); Tue, 30 May 2017 17:42:42 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:55829 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751061AbdE3Vmb (ORCPT ); Tue, 30 May 2017 17:42:31 -0400 Message-Id: <20170530211657.592676753@linutronix.de> User-Agent: quilt/0.63-1 Date: Tue, 30 May 2017 23:15:56 +0200 From: Thomas Gleixner To: LKML Cc: John Stultz , Peter Zijlstra , Ingo Molnar Subject: [patch 23/26] alarmtimer: Implement remaining callback References: <20170530211533.216608851@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Disposition: inline; filename=alarmtimer--Implement-remaining-callback.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Preparatory change to utilize the common posix timer mechanisms. Signed-off-by: Thomas Gleixner --- kernel/time/alarmtimer.c | 31 ++++++++++++++++++++++--------- 1 file changed, 22 insertions(+), 9 deletions(-) --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -561,6 +561,18 @@ static int alarm_timer_forward(struct k_ } /** + * alarm_timer_remaining - Posix timer callback to retrieve remaining time + * @timr: Pointer to the posixtimer data struct + * @now: Current time to calculate against + */ +static ktime_t alarm_timer_remaining(struct k_itimer *timr, ktime_t now) +{ + struct alarm *alarm = &timr->it.alarm.alarmtimer; + + return ktime_sub(now, alarm->node.expires); +} + +/** * alarm_clock_getres - posix getres interface * @which_clock: clockid * @tp: timespec to fill @@ -881,15 +893,16 @@ static int alarm_timer_nsleep(const cloc } const struct k_clock alarm_clock = { - .clock_getres = alarm_clock_getres, - .clock_get = alarm_clock_get, - .timer_create = alarm_timer_create, - .timer_set = alarm_timer_set, - .timer_del = alarm_timer_del, - .timer_get = alarm_timer_get, - .timer_rearm = alarm_timer_rearm, - .timer_forward = alarm_timer_forward, - .nsleep = alarm_timer_nsleep, + .clock_getres = alarm_clock_getres, + .clock_get = alarm_clock_get, + .timer_create = alarm_timer_create, + .timer_set = alarm_timer_set, + .timer_del = alarm_timer_del, + .timer_get = alarm_timer_get, + .timer_rearm = alarm_timer_rearm, + .timer_forward = alarm_timer_forward, + .timer_remaining = alarm_timer_remaining, + .nsleep = alarm_timer_nsleep, }; #endif /* CONFIG_POSIX_TIMERS */