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Commit 7fdd7f89 authored by John Stultz's avatar John Stultz
Browse files

timers: Export CLOCK_BOOTTIME via the posix timers interface 



This patch exports CLOCK_BOOTTIME through the posix timers interface

CC: Jamie Lokier <jamie@shareable.org>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Alexander Shishkin <virtuoso@slind.org>
CC: Arve Hjønnevåg <arve@android.com>
Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
parent 70a08cca

kernel/posix-timers.c

+20 −1
Original line number Diff line number Diff line
@@ -187,7 +187,7 @@ static int posix_ktime_get_ts(clockid_t which_clock, struct timespec *tp) 
}



/*

 * Get monotonic time for posix timers

 * Get monotonic-raw time for posix timers

 */

static int posix_get_monotonic_raw(clockid_t which_clock, struct timespec *tp)

{
@@ -214,6 +214,14 @@ static int posix_get_coarse_res(const clockid_t which_clock, struct timespec *tp 
	*tp = ktime_to_timespec(KTIME_LOW_RES);

	return 0;

}



static int posix_get_boottime(const clockid_t which_clock, struct timespec *tp)

{

	get_monotonic_boottime(tp);

	return 0;

}





/*

 * Initialize everything, well, just everything in Posix clocks/timers ;)

 */
@@ -253,12 +261,23 @@ static __init int init_posix_timers(void) 
		.clock_getres	= posix_get_coarse_res,

		.clock_get	= posix_get_monotonic_coarse,

	};

	struct k_clock clock_boottime = {

		.clock_getres	= hrtimer_get_res,

		.clock_get	= posix_get_boottime,

		.nsleep		= common_nsleep,

		.nsleep_restart	= hrtimer_nanosleep_restart,

		.timer_create	= common_timer_create,

		.timer_set	= common_timer_set,

		.timer_get	= common_timer_get,

		.timer_del	= common_timer_del,

	};



	posix_timers_register_clock(CLOCK_REALTIME, &clock_realtime);

	posix_timers_register_clock(CLOCK_MONOTONIC, &clock_monotonic);

	posix_timers_register_clock(CLOCK_MONOTONIC_RAW, &clock_monotonic_raw);

	posix_timers_register_clock(CLOCK_REALTIME_COARSE, &clock_realtime_coarse);

	posix_timers_register_clock(CLOCK_MONOTONIC_COARSE, &clock_monotonic_coarse);

	posix_timers_register_clock(CLOCK_BOOTTIME, &clock_boottime);



	posix_timers_cache = kmem_cache_create("posix_timers_cache",

					sizeof (struct k_itimer), 0, SLAB_PANIC,