Dear RT folks!
I'm pleased to announce the v4.16.18-rt9 patch set.
Changes since v4.16.18-rt8:
- A patch from upstream to avoid a warning in the kthread code. The
warning was part of the stable update.
- Revert of a timer patch which is no longer since the initial problem
was addressed upstream. Patch by Anna-Maria Gleixner.
Known issues
- A warning triggered in "rcu_note_context_switch" originated from
SyS_timer_gettime(). The issue was always there, it is now
visible. Reported by Grygorii Strashko and Daniel Wagner.
The delta patch against v4.16.18-rt8 is appended below and can be found here:
https://cdn.kernel.org/pub/linux/kernel/projects/rt/4.16/incr/patch-4.16.18-rt8-rt9.patch.xz
You can get this release via the git tree at:
git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git v4.16.18-rt9
The RT patch against v4.16.18 can be found here:
https://cdn.kernel.org/pub/linux/kernel/projects/rt/4.16/older/patch-4.16.18-rt9.patch.xz
The split quilt queue is available at:
https://cdn.kernel.org/pub/linux/kernel/projects/rt/4.16/older/patches-4.16.18-rt9.tar.xz
Sebastian
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 2017a39ab490..481951bf091d 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -193,7 +193,7 @@ EXPORT_SYMBOL_GPL(kthread_parkme);
void kthread_park_complete(struct task_struct *k)
{
- complete(&to_kthread(k)->parked);
+ complete_all(&to_kthread(k)->parked);
}
static int kthread(void *_create)
@@ -459,6 +459,7 @@ void kthread_unpark(struct task_struct *k)
if (test_bit(KTHREAD_IS_PER_CPU, &kthread->flags))
__kthread_bind(k, kthread->cpu, TASK_PARKED);
+ reinit_completion(&kthread->parked);
clear_bit(KTHREAD_SHOULD_PARK, &kthread->flags);
wake_up_state(k, TASK_PARKED);
}
@@ -483,9 +484,6 @@ int kthread_park(struct task_struct *k)
if (WARN_ON(k->flags & PF_EXITING))
return -ENOSYS;
- if (WARN_ON_ONCE(test_bit(KTHREAD_SHOULD_PARK, &kthread->flags)))
- return -EBUSY;
-
set_bit(KTHREAD_SHOULD_PARK, &kthread->flags);
if (k != current) {
wake_up_process(k);
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index 26f23481030b..20ae4c544cda 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -1673,13 +1673,13 @@ void update_process_times(int user_tick)
/* Note: this timer irq context must be accounted for as well. */
account_process_tick(p, user_tick);
- scheduler_tick();
run_local_timers();
rcu_check_callbacks(user_tick);
#if defined(CONFIG_IRQ_WORK)
if (in_irq())
irq_work_tick();
#endif
+ scheduler_tick();
if (IS_ENABLED(CONFIG_POSIX_TIMERS))
run_posix_cpu_timers(p);
}
diff --git a/localversion-rt b/localversion-rt
index 700c857efd9b..22746d6390a4 100644
--- a/localversion-rt
+++ b/localversion-rt
@@ -1 +1 @@
--rt8
+-rt9
--
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