diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2016-07-15 11:41:04 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-07-15 11:41:37 +0300 |
| commit | 27590dc17b34aedc4f3e14bd107ee59b9db9b0a6 (patch) | |
| tree | 497208a2586ac32c9bea908e04fecadd553cfd5e /include | |
| parent | ae6a8a2ed721ecdbc15d32b2089af5ed2190adc7 (diff) | |
| download | linux-27590dc17b34aedc4f3e14bd107ee59b9db9b0a6.tar.xz | |
hrtimer: Convert to hotplug state machine
Split out the clockevents callbacks instead of piggybacking them on
hrtimers.
This gets rid of a POST_DEAD user. See commit:
54e88fad223c ("sched: Make sure timers have migrated before killing the migration_thread")
We just move the callback state to the proper place in the state machine.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160713153337.485419196@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/cpuhotplug.h | 1 | ||||
| -rw-r--r-- | include/linux/hrtimer.h | 7 |
2 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h index 070cc7f28862..04ecc55009ed 100644 --- a/include/linux/cpuhotplug.h +++ b/include/linux/cpuhotplug.h @@ -15,6 +15,7 @@ enum cpuhp_state { CPUHP_X86_HPET_DEAD, CPUHP_X86_APB_DEAD, CPUHP_WORKQUEUE_PREP, + CPUHP_HRTIMERS_PREPARE, CPUHP_NOTIFY_PREPARE, CPUHP_BRINGUP_CPU, CPUHP_AP_IDLE_DEAD, diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index c98c6539e2c2..5e00f80b1535 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -494,4 +494,11 @@ extern void __init hrtimers_init(void); /* Show pending timers: */ extern void sysrq_timer_list_show(void); +int hrtimers_prepare_cpu(unsigned int cpu); +#ifdef CONFIG_HOTPLUG_CPU +int hrtimers_dead_cpu(unsigned int cpu); +#else +#define hrtimers_dead_cpu NULL +#endif + #endif |