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posix-timers: Convert timer_settime() to clockid_to_kclock() 

Set the common function for CLOCK_MONOTONIC and CLOCK_REALTIME kclocks
and use the new decoding function.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <johnstul@us.ibm.com>
Tested-by: Richard Cochran <richard.cochran@omicron.at>
LKML-Reference: <20110201134419.001863714@linutronix.de>
This commit is contained in:
Thomas Gleixner 2011-02-01 13:52:01 +00:00
parent 838394fbf9
commit 27722df16e
1 changed files with 8 additions and 2 deletions
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10
kernel/posix-timers.c
View File

@ -252,6 +252,7 @@ static __init int init_posix_timers(void)
.nsleep = common_nsleep,
.nsleep_restart = hrtimer_nanosleep_restart,
.timer_create = common_timer_create,
.timer_set = common_timer_set,
};
struct k_clock clock_monotonic = {
.clock_getres = hrtimer_get_res,
@ -259,6 +260,7 @@ static __init int init_posix_timers(void)
.nsleep = common_nsleep,
.nsleep_restart = hrtimer_nanosleep_restart,
.timer_create = common_timer_create,
.timer_set = common_timer_set,
};
struct k_clock clock_monotonic_raw = {
.clock_getres = hrtimer_get_res,
@ -814,6 +816,7 @@ SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags,
int error = 0;
unsigned long flag;
struct itimerspec *rtn = old_setting ? &old_spec : NULL;
struct k_clock *kc;
if (!new_setting)
return -EINVAL;
@ -829,8 +832,11 @@ retry:
if (!timr)
return -EINVAL;
error = CLOCK_DISPATCH(timr->it_clock, timer_set,
(timr, flags, &new_spec, rtn));
kc = clockid_to_kclock(timr->it_clock);
if (WARN_ON_ONCE(!kc || !kc->timer_set))
error = -EINVAL;
else
error = kc->timer_set(timr, flags, &new_spec, rtn);
unlock_timer(timr, flag);
if (error == TIMER_RETRY) {