From: Daniel Wagner <wagi@monom.org>
To: LKML <linux-kernel@vger.kernel.org>,
linux-rt-users <linux-rt-users@vger.kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Thomas Gleixner <tglx@linutronix.de>,
Carsten Emde <C.Emde@osadl.org>, John Kacur <jkacur@redhat.com>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Tom Zanussi <tom.zanussi@linux.intel.com>,
Clark Williams <williams@redhat.com>,
Pavel Machek <pavel@denx.de>
Cc: Daniel Wagner <wagi@monom.org>
Subject: [PATCH RT 5/9] timers: Keep interrupts disabled for TIMER_IRQSAFE timer.
Date: Mon, 24 Oct 2022 12:44:21 +0200 [thread overview]
Message-ID: <20221024104425.16423-6-wagi@monom.org> (raw)
In-Reply-To: <20221024104425.16423-1-wagi@monom.org>
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
v4.19.255-rt114-rc1 stable review patch.
If anyone has any objections, please let me know.
-----------
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;
--
2.38.0
next prev parent reply other threads:[~2022-10-24 10:55 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-24 10:44 [PATCH RT 0/9] Linux v4.19.255-rt114-rc1 Daniel Wagner
2022-10-24 10:44 ` [PATCH RT 1/9] Revert "random: Use local locks for crng context access" Daniel Wagner
2022-10-24 10:44 ` [PATCH RT 2/9] random: Bring back the local_locks Daniel Wagner
2022-10-24 10:44 ` [PATCH RT 3/9] local_lock: Provide INIT_LOCAL_LOCK() Daniel Wagner
2022-10-24 10:44 ` [PATCH RT 4/9] Revert "workqueue: Use local irq lock instead of irq disable regions" Daniel Wagner
2022-10-24 10:44 ` Daniel Wagner [this message]
2022-10-24 10:44 ` [PATCH RT 6/9] timers: Don't block on ->expiry_lock for TIMER_IRQSAFE timers Daniel Wagner
2022-10-24 10:44 ` [PATCH RT 7/9] rcu: Update rcuwait Daniel Wagner
2022-10-24 10:44 ` [PATCH RT 8/9] workqueue: Use rcuwait for wq_manager_wait Daniel Wagner
2022-10-24 10:44 ` [PATCH RT 9/9] Linux 4.19.255-rt114-rc1 Daniel Wagner
2022-10-24 10:54 ` [PATCH RT 0/9] Linux v4.19.255-rt114-rc1 Daniel Wagner
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