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posix-timers: Store k_clock pointer in k_itimer

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Having the k_clock pointer in the k_itimer struct avoids the lookup in
several code pathes and makes the next steps of unification of the hrtimer
and alarmtimer based posix timers simpler.

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/20170530211656.641222072@linutronix.de
This commit is contained in:
Thomas Gleixner 2017-05-30 23:15:44 +02:00
parent 80105cd0e6
commit d97bb75ddd
3 changed files with 8 additions and 3 deletions
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kernel/time/posix-cpu-timers.c
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@ -324,6 +324,8 @@ static int posix_cpu_timer_create(struct k_itimer *new_timer)
if (CPUCLOCK_WHICH(new_timer->it_clock) >= CPUCLOCK_MAX)
return -EINVAL;
new_timer->kclock = &clock_posix_cpu;
INIT_LIST_HEAD(&new_timer->it.cpu.entry);
rcu_read_lock();