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| author | Thomas Gleixner <tglx@linutronix.de> | 2016-07-15 10:41:04 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-07-15 10:41:37 +0200 |
| commit | 27590dc17b34aedc4f3e14bd107ee59b9db9b0a6 (patch) | |
| tree | 497208a2586ac32c9bea908e04fecadd553cfd5e /kernel/cpu.c | |
| parent | ae6a8a2ed721ecdbc15d32b2089af5ed2190adc7 (diff) | |
| download | lwn-27590dc17b34aedc4f3e14bd107ee59b9db9b0a6.tar.gz lwn-27590dc17b34aedc4f3e14bd107ee59b9db9b0a6.zip | |
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 'kernel/cpu.c')
| -rw-r--r-- | kernel/cpu.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index af53f820fec9..85500e7fe238 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -1190,6 +1190,11 @@ static struct cpuhp_step cpuhp_bp_states[] = { .startup = workqueue_prepare_cpu, .teardown = NULL, }, + [CPUHP_HRTIMERS_PREPARE] = { + .name = "hrtimers prepare", + .startup = hrtimers_prepare_cpu, + .teardown = hrtimers_dead_cpu, + }, /* * Preparatory and dead notifiers. Will be replaced once the notifiers * are converted to states. |