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workqueue: Convert to state machine callbacks

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Get rid of the prio ordering of the separate notifiers and use a proper state
callback pair.

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>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.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/20160713153335.197083890@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Thomas Gleixner 2016-07-13 17:16:29 +00:00 • committed by Ingo Molnar
parent c6a84daa34
commit 7ee681b252
5 changed files with 60 additions and 73 deletions
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10
kernel/cpu.c
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@ -1185,6 +1185,11 @@ static struct cpuhp_step cpuhp_bp_states[] = {
.startup = perf_event_init_cpu,
.teardown = perf_event_exit_cpu,
},
[CPUHP_WORKQUEUE_PREP] = {
.name = "workqueue prepare",
.startup = workqueue_prepare_cpu,
.teardown = NULL,
},
/*
* Preparatory and dead notifiers. Will be replaced once the notifiers
* are converted to states.
@ -1267,6 +1272,11 @@ static struct cpuhp_step cpuhp_ap_states[] = {
.startup = perf_event_init_cpu,
.teardown = perf_event_exit_cpu,
},
[CPUHP_AP_WORKQUEUE_ONLINE] = {
.name = "workqueue online",
.startup = workqueue_online_cpu,
.teardown = workqueue_offline_cpu,
},
/*
* Online/down_prepare notifiers. Will be removed once the notifiers