diff options
Diffstat (limited to 'kernel/posix-timers.c')
| -rw-r--r-- | kernel/posix-timers.c | 35 |
1 files changed, 8 insertions, 27 deletions
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c index fd316c272260..5b7b4736d82b 100644 --- a/kernel/posix-timers.c +++ b/kernel/posix-timers.c @@ -89,23 +89,6 @@ static struct idr posix_timers_id; static DEFINE_SPINLOCK(idr_lock); /* - * Just because the timer is not in the timer list does NOT mean it is - * inactive. It could be in the "fire" routine getting a new expire time. - */ -#define TIMER_INACTIVE 1 - -#ifdef CONFIG_SMP -# define timer_active(tmr) \ - ((tmr)->it.real.timer.entry.prev != (void *)TIMER_INACTIVE) -# define set_timer_inactive(tmr) \ - do { \ - (tmr)->it.real.timer.entry.prev = (void *)TIMER_INACTIVE; \ - } while (0) -#else -# define timer_active(tmr) BARFY // error to use outside of SMP -# define set_timer_inactive(tmr) do { } while (0) -#endif -/* * we assume that the new SIGEV_THREAD_ID shares no bits with the other * SIGEV values. Here we put out an error if this assumption fails. */ @@ -226,7 +209,6 @@ static inline int common_timer_create(struct k_itimer *new_timer) init_timer(&new_timer->it.real.timer); new_timer->it.real.timer.data = (unsigned long) new_timer; new_timer->it.real.timer.function = posix_timer_fn; - set_timer_inactive(new_timer); return 0; } @@ -480,7 +462,6 @@ static void posix_timer_fn(unsigned long __data) int do_notify = 1; spin_lock_irqsave(&timr->it_lock, flags); - set_timer_inactive(timr); if (!list_empty(&timr->it.real.abs_timer_entry)) { spin_lock(&abs_list.lock); do { @@ -983,8 +964,8 @@ common_timer_set(struct k_itimer *timr, int flags, * careful here. If smp we could be in the "fire" routine which will * be spinning as we hold the lock. But this is ONLY an SMP issue. */ + if (try_to_del_timer_sync(&timr->it.real.timer) < 0) { #ifdef CONFIG_SMP - if (timer_active(timr) && !del_timer(&timr->it.real.timer)) /* * It can only be active if on an other cpu. Since * we have cleared the interval stuff above, it should @@ -994,11 +975,9 @@ common_timer_set(struct k_itimer *timr, int flags, * a "retry" exit status. */ return TIMER_RETRY; - - set_timer_inactive(timr); -#else - del_timer(&timr->it.real.timer); #endif + } + remove_from_abslist(timr); timr->it_requeue_pending = (timr->it_requeue_pending + 2) & @@ -1083,8 +1062,9 @@ retry: static inline int common_timer_del(struct k_itimer *timer) { timer->it.real.incr = 0; + + if (try_to_del_timer_sync(&timer->it.real.timer) < 0) { #ifdef CONFIG_SMP - if (timer_active(timer) && !del_timer(&timer->it.real.timer)) /* * It can only be active if on an other cpu. Since * we have cleared the interval stuff above, it should @@ -1094,9 +1074,9 @@ static inline int common_timer_del(struct k_itimer *timer) * a "retry" exit status. */ return TIMER_RETRY; -#else - del_timer(&timer->it.real.timer); #endif + } + remove_from_abslist(timer); return 0; @@ -1197,6 +1177,7 @@ void exit_itimers(struct signal_struct *sig) tmr = list_entry(sig->posix_timers.next, struct k_itimer, list); itimer_delete(tmr); } + del_timer_sync(&sig->real_timer); } /* |