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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Fri, 19 Aug 2022 11:24:42 +0200
Subject: [PATCH 344/351] timers: Keep interrupts disabled for TIMER_IRQSAFE
timer.
Origin: https://git.kernel.org/cgit/linux/kernel/git/rt/linux-stable-rt.git/commit?id=c954214601502e0896ac0b81f1222879dad55393
Keep interrupts disabled across callback invocation for the
TIMER_IRQSAFE as expected.
This is required for the timer used by workqueue after the upcomming
rework.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Daniel Wagner <wagi@monom.org>
---
kernel/time/timer.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index a2be2277506d..3e2c0bd03004 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -1397,8 +1397,7 @@ static void expire_timers(struct timer_base *base, struct hlist_head *head)
fn = timer->function;
- if (!IS_ENABLED(CONFIG_PREEMPT_RT_FULL) &&
- timer->flags & TIMER_IRQSAFE) {
+ if (timer->flags & TIMER_IRQSAFE) {
raw_spin_unlock(&base->lock);
call_timer_fn(timer, fn);
base->running_timer = NULL;
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