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Subject[tip:timers/core] posix-timers: Add cancel/arm callbacks
Commit-ID:  525b8ed91671e29e187dfe02d408b11190ccf494
Gitweb: http://git.kernel.org/tip/525b8ed91671e29e187dfe02d408b11190ccf494
Author: Thomas Gleixner <tglx@linutronix.de>
AuthorDate: Tue, 30 May 2017 23:15:52 +0200
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Sun, 4 Jun 2017 15:40:28 +0200

posix-timers: Add cancel/arm callbacks

Add timer_try_to_cancel() and timer_arm() callbacks to kclock which allow
to make common_timer_set() usable by both hrtimer and alarmtimer based
clocks.

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/20170530211657.278022962@linutronix.de

---
kernel/time/posix-timers.h | 3 +++
1 file changed, 3 insertions(+)

diff --git a/kernel/time/posix-timers.h b/kernel/time/posix-timers.h
index 3bc5b74..b0ad77e 100644
--- a/kernel/time/posix-timers.h
+++ b/kernel/time/posix-timers.h
@@ -21,6 +21,9 @@ struct k_clock {
void (*timer_rearm)(struct k_itimer *timr);
int (*timer_forward)(struct k_itimer *timr, ktime_t now);
ktime_t (*timer_remaining)(struct k_itimer *timr, ktime_t now);
+ int (*timer_try_to_cancel)(struct k_itimer *timr);
+ void (*timer_arm)(struct k_itimer *timr, ktime_t expires,
+ bool absolute, bool sigev_none);
};

extern const struct k_clock clock_posix_cpu;
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