diff options
Diffstat (limited to 'debian/patches-rt/0343-Revert-workqueue-Use-local-irq-lock-instead-of-irq-d.patch')
| -rw-r--r-- | debian/patches-rt/0343-Revert-workqueue-Use-local-irq-lock-instead-of-irq-d.patch | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/debian/patches-rt/0343-Revert-workqueue-Use-local-irq-lock-instead-of-irq-d.patch b/debian/patches-rt/0343-Revert-workqueue-Use-local-irq-lock-instead-of-irq-d.patch new file mode 100644 index 000000000..b2cf769f2 --- /dev/null +++ b/debian/patches-rt/0343-Revert-workqueue-Use-local-irq-lock-instead-of-irq-d.patch @@ -0,0 +1,38 @@ +From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +Date: Fri, 21 Oct 2022 16:15:56 +0200 +Subject: [PATCH 343/351] Revert "workqueue: Use local irq lock instead of irq + disable regions" +Origin: https://git.kernel.org/cgit/linux/kernel/git/rt/linux-stable-rt.git/commit?id=673b95794c85f76d4c99994d288cc41ecc8b02bd + +This reverts the PREEMPT_RT related changes to workqueue. It reverts the +usage of local_locks() and cpu_chill(). + +This is a preparation to pull in the PREEMPT_RT related changes which +were merged upstream. + +Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +[wagi: 827b6f6962da ("workqueue: rework") already reverted + most of the changes, except the missing update in + put_pwq_unlocked.] +Signed-off-by: Daniel Wagner <wagi@monom.org> +--- + kernel/workqueue.c | 4 +--- + 1 file changed, 1 insertion(+), 3 deletions(-) + +diff --git a/kernel/workqueue.c b/kernel/workqueue.c +index c047a647146e..e0ab9febe11f 100644 +--- a/kernel/workqueue.c ++++ b/kernel/workqueue.c +@@ -1496,11 +1496,9 @@ EXPORT_SYMBOL(queue_work_on); + void delayed_work_timer_fn(struct timer_list *t) + { + struct delayed_work *dwork = from_timer(dwork, t, timer); +- unsigned long flags; + +- local_irq_save(flags); ++ /* should have been called from irqsafe timer with irq already off */ + __queue_work(dwork->cpu, dwork->wq, &dwork->work); +- local_irq_restore(flags); + } + EXPORT_SYMBOL(delayed_work_timer_fn); + |