From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: John Stultz <john.stultz@linaro.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>
Subject: [patch 18/26] posix-timers: Zero settings value in common code
Date: Tue, 30 May 2017 23:15:51 +0200 [thread overview]
Message-ID: <20170530211657.200870713@linutronix.de> (raw)
In-Reply-To: 20170530211533.216608851@linutronix.de
[-- Attachment #1: posix-timers--Zero-settings-value-in-common-code.patch --]
[-- Type: text/plain, Size: 1573 bytes --]
Zero out the settings struct in the common code so the callbacks do not
have to do it themself.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
kernel/time/posix-cpu-timers.c | 5 +----
kernel/time/posix-timers.c | 3 +--
2 files changed, 2 insertions(+), 6 deletions(-)
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -719,10 +719,8 @@ static void posix_cpu_timer_get(struct k
*/
itp->it_interval = ns_to_timespec64(timer->it.cpu.incr);
- if (timer->it.cpu.expires == 0) { /* Timer not armed at all. */
- itp->it_value.tv_sec = itp->it_value.tv_nsec = 0;
+ if (!timer->it.cpu.expires)
return;
- }
/*
* Sample the clock to take the difference with the expiry time.
@@ -746,7 +744,6 @@ static void posix_cpu_timer_get(struct k
* Call the timer disarmed, nothing else to do.
*/
timer->it.cpu.expires = 0;
- itp->it_value = ns_to_timespec64(timer->it.cpu.expires);
return;
} else {
cpu_timer_sample_group(timer->it_clock, p, &now);
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -645,8 +645,6 @@ common_timer_get(struct k_itimer *timr,
struct timespec64 ts64;
bool sig_none;
- memset(cur_setting, 0, sizeof(*cur_setting));
-
sig_none = (timr->it_sigev_notify & ~SIGEV_THREAD_ID) != SIGEV_NONE;
iv = timr->it_interval;
@@ -705,6 +703,7 @@ SYSCALL_DEFINE2(timer_gettime, timer_t,
if (!timr)
return -EINVAL;
+ memset(&cur_setting64, 0, sizeof(cur_setting64));
kc = timr->kclock;
if (WARN_ON_ONCE(!kc || !kc->timer_get))
ret = -EINVAL;
next prev parent reply other threads:[~2017-05-30 21:44 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 ` Thomas Gleixner [this message]
2017-06-05 8:21 ` [tip:timers/core] posix-timers: Zero settings value in common code 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:timers/core] " tip-bot for Thomas Gleixner
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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