diff options
| -rw-r--r-- | kernel/itimer.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/itimer.c b/kernel/itimer.c index e9a40e947e0..1dc988e0d2c 100644 --- a/kernel/itimer.c +++ b/kernel/itimer.c @@ -123,7 +123,11 @@ static inline void it_real_arm(struct task_struct *p, unsigned long interval) return; if (interval > (unsigned long) LONG_MAX) interval = LONG_MAX; - p->signal->real_timer.expires = jiffies + interval; + /* the "+ 1" below makes sure that the timer doesn't go off before + * the interval requested. This could happen if + * time requested % (usecs per jiffy) is more than the usecs left + * in the current jiffy */ + p->signal->real_timer.expires = jiffies + interval + 1; add_timer(&p->signal->real_timer); } |