The posix cpu timers code makes a heavy use of BUG_ON()
but none of these concern fatal issues that require
to stop the machine. So let's just warn the user when
some internal state slips out of our hands.
Signed-off-by: Frederic Weisbecker <fweis...@gmail.com>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Ingo Molnar <mi...@kernel.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Oleg Nesterov <o...@redhat.com>
Cc: Kosaki Motohiro <kosaki.motoh...@jp.fujitsu.com>
Cc: Andrew Morton <a...@linux-foundation.org>
---
kernel/posix-cpu-timers.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index a9d400e..319328b 100644
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -395,7 +395,7 @@ static int posix_cpu_timer_del(struct k_itimer *timer)
* We raced with the reaping of the task.
* The deletion should have cleared us off the list.
*/
- BUG_ON(!list_empty(&timer->it.cpu.entry));
+ WARN_ON_ONCE(!list_empty(&timer->it.cpu.entry));
} else {
if (timer->it.cpu.firing)
ret = TIMER_RETRY;
@@ -639,7 +639,7 @@ static int posix_cpu_timer_set(struct k_itimer *timer, int
timer_flags,
/*
* Disarm any old timer after extracting its expiry time.
*/
- BUG_ON(!irqs_disabled());
+ WARN_ON_ONCE(!irqs_disabled());
ret = 0;
old_incr = timer->it.cpu.incr;
@@ -1058,7 +1058,7 @@ void posix_cpu_timer_schedule(struct k_itimer *timer)
/*
* Now re-arm for the new expiry time.
*/
- BUG_ON(!irqs_disabled());
+ WARN_ON_ONCE(!irqs_disabled());
arm_timer(timer);
out_unlock:
@@ -1147,7 +1147,7 @@ void run_posix_cpu_timers(struct task_struct *tsk)
struct k_itimer *timer, *next;
unsigned long flags;
- BUG_ON(!irqs_disabled());
+ WARN_ON_ONCE(!irqs_disabled());
/*
* The fast path checks that there are no expired thread or thread
@@ -1221,7 +1221,7 @@ void set_process_cpu_timer(struct task_struct *tsk,
unsigned int clock_idx,
{
unsigned long long now;
- BUG_ON(clock_idx == CPUCLOCK_SCHED);
+ WARN_ON_ONCE(clock_idx == CPUCLOCK_SCHED);
cpu_timer_sample_group(clock_idx, tsk, &now);
if (oldval) {
--
1.8.3.1
--
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