return 0;
}
+static int posix_get_tai(clockid_t which_clock, struct timespec *tp)
+{
+ timekeeping_clocktai(tp);
+ return 0;
+}
/*
* Initialize everything, well, just everything in Posix clocks/timers ;)
.clock_getres = posix_get_coarse_res,
.clock_get = posix_get_monotonic_coarse,
};
+ struct k_clock clock_tai = {
+ .clock_getres = hrtimer_get_res,
+ .clock_get = posix_get_tai,
+ };
struct k_clock clock_boottime = {
.clock_getres = hrtimer_get_res,
.clock_get = posix_get_boottime,
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_register_clock(CLOCK_TAI, &clock_tai);
posix_timers_cache = kmem_cache_create("posix_timers_cache",
sizeof (struct k_itimer), 0, SLAB_PANIC,
return -EAGAIN;
spin_lock_init(&new_timer->it_lock);
- retry:
- if (unlikely(!idr_pre_get(&posix_timers_id, GFP_KERNEL))) {
- error = -EAGAIN;
- goto out;
- }
+
+ idr_preload(GFP_KERNEL);
spin_lock_irq(&idr_lock);
- error = idr_get_new(&posix_timers_id, new_timer, &new_timer_id);
+ error = idr_alloc(&posix_timers_id, new_timer, 0, 0, GFP_NOWAIT);
spin_unlock_irq(&idr_lock);
- if (error) {
- if (error == -EAGAIN)
- goto retry;
+ idr_preload_end();
+ if (error < 0) {
/*
* Weird looking, but we return EAGAIN if the IDR is
* full (proper POSIX return value for this)
*/
- error = -EAGAIN;
+ if (error == -ENOSPC)
+ error = -EAGAIN;
goto out;
}
+ new_timer_id = error;
it_id_set = IT_ID_SET;
new_timer->it_id = (timer_t) new_timer_id;
{
struct k_itimer *timr;
+ /*
+ * timer_t could be any type >= int and we want to make sure any
+ * @timer_id outside positive int range fails lookup.
+ */
+ if ((unsigned long long)timer_id > INT_MAX)
+ return NULL;
+
rcu_read_lock();
timr = idr_find(&posix_timers_id, (int)timer_id);
if (timr) {