diff options
| author | Richard Weinberger <richard@nod.at> | 2016-07-13 19:17:01 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-07-15 10:41:43 +0200 |
| commit | 31487f8328f20fdb302430b020a5d6e8446c1971 (patch) | |
| tree | 73d62b623424d059cd36633bcdf54de2e7d12240 /kernel/cpu.c | |
| parent | x86/x2apic: Convert to CPU hotplug state machine (diff) | |
| download | linux-31487f8328f20fdb302430b020a5d6e8446c1971.tar.xz linux-31487f8328f20fdb302430b020a5d6e8446c1971.zip | |
smp/cfd: Convert core to hotplug state machine
Install the callbacks via the state machine. They are installed at runtime so
smpcfd_prepare_cpu() needs to be invoked by the boot-CPU.
Signed-off-by: Richard Weinberger <richard@nod.at>
[ Added the dropped CPU dying case back in. ]
Signed-off-by: Richard Cochran <rcochran@linutronix.de>
Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Davidlohr Bueso <dave@stgolabs>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160713153337.818376366@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/cpu.c')
| -rw-r--r-- | kernel/cpu.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index e1017d92d308..008e2fd40cb1 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -1195,6 +1195,11 @@ static struct cpuhp_step cpuhp_bp_states[] = { .startup = hrtimers_prepare_cpu, .teardown = hrtimers_dead_cpu, }, + [CPUHP_SMPCFD_PREPARE] = { + .name = "SMPCFD prepare", + .startup = smpcfd_prepare_cpu, + .teardown = smpcfd_dead_cpu, + }, [CPUHP_TIMERS_DEAD] = { .name = "timers dead", .startup = NULL, @@ -1218,6 +1223,10 @@ static struct cpuhp_step cpuhp_bp_states[] = { .teardown = NULL, .cant_stop = true, }, + [CPUHP_AP_SMPCFD_DYING] = { + .startup = NULL, + .teardown = smpcfd_dying_cpu, + }, /* * Handled on controll processor until the plugged processor manages * this itself. |