From a16a1c095a2392d49fafea22f3a508e268ef7167 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 1 Feb 2006 03:05:09 -0800 Subject: [PATCH] [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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/itimer.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/kernel/itimer.c b/kernel/itimer.c index 6433d06855..379be2f8c8 100644 --- a/kernel/itimer.c +++ b/kernel/itimer.c @@ -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); -- 2.39.5