diff options
Diffstat (limited to 'kernel/timer.c')
| -rw-r--r-- | kernel/timer.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/kernel/timer.c b/kernel/timer.c index e3b8c697bde4..ee305c8d4e18 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -752,11 +752,15 @@ unsigned long apply_slack(struct timer_list *timer, unsigned long expires) expires_limit = expires; - if (timer->slack > -1) + if (timer->slack >= 0) { expires_limit = expires + timer->slack; - else if (time_after(expires, jiffies)) /* auto slack: use 0.4% */ - expires_limit = expires + (expires - jiffies)/256; + } else { + unsigned long now = jiffies; + /* No slack, if already expired else auto slack 0.4% */ + if (time_after(expires, now)) + expires_limit = expires + (expires - now)/256; + } mask = expires ^ expires_limit; if (mask == 0) return expires; @@ -1713,7 +1717,7 @@ void __init init_timers(void) init_timer_stats(); - BUG_ON(err == NOTIFY_BAD); + BUG_ON(err != NOTIFY_OK); register_cpu_notifier(&timers_nb); open_softirq(TIMER_SOFTIRQ, run_timer_softirq); } |