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From: tip-bot for Thomas Gleixner <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: mingo@kernel.org, john.stultz@linaro.org,
	linux-kernel@vger.kernel.org, tglx@linutronix.de, hpa@zytor.com,
	peterz@infradead.org
Subject: [tip:timers/core] alarmtimer: Implement forward callback
Date: Mon, 5 Jun 2017 01:24:01 -0700	[thread overview]
Message-ID: <tip-e7561f1633ac735df48c55ad09a2530e9ab9fab1@git.kernel.org> (raw)
In-Reply-To: <20170530211657.513694229@linutronix.de>

Commit-ID:  e7561f1633ac735df48c55ad09a2530e9ab9fab1
Gitweb:     http://git.kernel.org/tip/e7561f1633ac735df48c55ad09a2530e9ab9fab1
Author:     Thomas Gleixner <tglx@linutronix.de>
AuthorDate: Tue, 30 May 2017 23:15:55 +0200
Committer:  Thomas Gleixner <tglx@linutronix.de>
CommitDate: Sun, 4 Jun 2017 15:40:30 +0200

alarmtimer: Implement forward callback

Preparatory change to utilize the common posix timer mechanisms.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: John Stultz <john.stultz@linaro.org>
Link: http://lkml.kernel.org/r/20170530211657.513694229@linutronix.de

---
 kernel/time/alarmtimer.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
index be85e3c..6082cf1 100644
--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -549,6 +549,18 @@ static void alarm_timer_rearm(struct k_itimer *timr)
 }
 
 /**
+ * alarm_timer_forward - Posix timer callback for forwarding timer
+ * @timr:	Pointer to the posixtimer data struct
+ * @now:	Current time to forward the timer against
+ */
+static int alarm_timer_forward(struct k_itimer *timr, ktime_t now)
+{
+	struct alarm *alarm = &timr->it.alarm.alarmtimer;
+
+	return (int) alarm_forward(alarm, timr->it_interval, now);
+}
+
+/**
  * alarm_clock_getres - posix getres interface
  * @which_clock: clockid
  * @tp: timespec to fill
@@ -876,6 +888,7 @@ const struct k_clock alarm_clock = {
 	.timer_del	= alarm_timer_del,
 	.timer_get	= alarm_timer_get,
 	.timer_rearm	= alarm_timer_rearm,
+	.timer_forward	= alarm_timer_forward,
 	.nsleep		= alarm_timer_nsleep,
 };
 #endif /* CONFIG_POSIX_TIMERS */

  reply	other threads:[~2017-06-05  8:27 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-30 21:15 [patch 00/26] alarmtimers/posixtimers: Bug fixes and spec conformity changes Thomas Gleixner
2017-05-30 21:15 ` [patch 01/26] alarmtimer: Prevent overflow of relative timers Thomas Gleixner
2017-06-04 13:21   ` [tip:timers/urgent] " tip-bot for Thomas Gleixner
2017-06-04 13:24   ` tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 02/26] alarmtimer: Rate limit periodic intervals Thomas Gleixner
2017-06-04 13:22   ` [tip:timers/urgent] " tip-bot for Thomas Gleixner
2017-06-04 13:25   ` tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 03/26] alarmtimer: Remove pointless config conditional Thomas Gleixner
2017-06-05  8:13   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 04/26] posix-timers: Remove unused export of posix_timer_event() Thomas Gleixner
2017-06-05  8:13   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 05/26] posix-clocks: Remove interval timer facility and mmap/fasync callbacks Thomas Gleixner
2017-05-31  9:00   ` Richard Cochran
2017-06-05  8:14   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 06/26] posix-timers: Avoid gazillions of forward declarations Thomas Gleixner
2017-06-05  8:14   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 07/26] posix-timers: Cleanup struct k_itimer Thomas Gleixner
2017-06-05  8:15   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 08/26] posix-timers: Move posix-timer internals to core Thomas Gleixner
2017-05-31 15:37   ` Christoph Hellwig
2017-06-05  8:15   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 09/26] posix-timers: Unify overrun/requeue_pending handling Thomas Gleixner
2017-06-05  8:16   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 10/26] posix-timers: Move interval out of the union Thomas Gleixner
2017-06-05  8:17   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 11/26] posix-timers: Store k_clock pointer in k_itimer Thomas Gleixner
2017-06-05  8:17   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 12/26] posix-timers: Add timer_rearm() callback Thomas Gleixner
2017-06-05  8:18   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 13/26] posix-timers: Rename do_schedule_next_timer Thomas Gleixner
2017-05-31 15:39   ` Christoph Hellwig
2017-06-01 20:50     ` Thomas Gleixner
2017-06-02  7:00       ` Christoph Hellwig
2017-06-05  8:18   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 14/26] posix-timers: Use timer_rearm() callback in posixtimer_rearm() Thomas Gleixner
2017-06-05  8:19   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 15/26] posix-timers: Add active flag to k_itimer Thomas Gleixner
2017-06-05  8:20   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 16/26] posix-timers: Add forward/remaining callbacks Thomas Gleixner
2017-06-05  8:20   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 17/26] posix-timers: Make use of " Thomas Gleixner
2017-06-05  8:21   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 18/26] posix-timers: Zero settings value in common code Thomas Gleixner
2017-06-05  8:21   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-06-09 20:12     ` Andrei Vagin
2017-06-12 19:13       ` [tip:timers/core] posix-timers: Zero out oldval itimerspec tip-bot for Thomas Gleixner
2017-06-12 21:06         ` Andrei Vagin
2017-06-12 22:01           ` Thomas Gleixner
2017-06-12 22:14             ` Andrei Vagin
2017-06-12 19:13       ` [tip:timers/core] posix-timers: Handle relative posix-timers correctly tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 19/26] posix-timers: Add cancel/arm callbacks Thomas Gleixner
2017-06-05  8:22   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 20/26] posix-timers: Make use of " Thomas Gleixner
2017-06-05  8:22   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 21/26] alarmtimer: Implement timer_rearm() callback Thomas Gleixner
2017-06-05  8:23   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 22/26] alarmtimer: Implement forward callback Thomas Gleixner
2017-06-05  8:24   ` tip-bot for Thomas Gleixner [this message]
2017-05-30 21:15 ` [patch 23/26] alarmtimer: Implement remaining callback Thomas Gleixner
2017-06-05  8:24   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 24/26] alarmtimer: Implement try_to_cancel callback Thomas Gleixner
2017-06-05  8:25   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 25/26] alarmtimer: Implement arm callback Thomas Gleixner
2017-06-05  8:25   ` [tip:timers/core] " tip-bot for Thomas Gleixner
2017-05-30 21:15 ` [patch 26/26] alarmtimer: Switch over to generic set/get/rearm routine Thomas Gleixner
2017-06-05  8:26   ` [tip:timers/core] " tip-bot for Thomas Gleixner

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