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[PATCH] hrtimers: fix oldvalue return in setitimer 

This resolves bugzilla bug#5617.  The oldvalue of the timer was read after the
timer was cancelled, so the remaining time was always zero.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Thomas Gleixner 2006-02-01 03:05:09 -08:00 committed by Linus Torvalds
parent b6557fbca8
commit a16a1c095a
1 changed files with 5 additions and 5 deletions
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10
kernel/itimer.c
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@ -155,16 +155,16 @@ int do_setitimer(int which, struct itimerval *value, struct itimerval *ovalue)
again:
spin_lock_irq(&tsk->sighand->siglock);
timer = &tsk->signal->real_timer;
/* We are sharing ->siglock with it_real_fn() */
if (hrtimer_try_to_cancel(timer) < 0) {
spin_unlock_irq(&tsk->sighand->siglock);
goto again;
}
if (ovalue) {
ovalue->it_value = itimer_get_remtime(timer);
ovalue->it_interval
= ktime_to_timeval(tsk->signal->it_real_incr);
}
/* We are sharing ->siglock with it_real_fn() */
if (hrtimer_try_to_cancel(timer) < 0) {
spin_unlock_irq(&tsk->sighand->siglock);
goto again;
}
tsk->signal->it_real_incr =
timeval_to_ktime(value->it_interval);
expires = timeval_to_ktime(value->it_value);