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| author |   Richard Weinberger <richard@nod.at> | 2016-07-13 17:17:01 +0000 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2016-07-15 10:41:43 +0200 |
| commit | 31487f8328f20fdb302430b020a5d6e8446c1971 (patch) | |
| tree | 73d62b623424d059cd36633bcdf54de2e7d12240 /include/linux/smp.h | |
| parent | x86/x2apic: Convert to CPU hotplug state machine (diff) | |
| download | linux-dev-31487f8328f20fdb302430b020a5d6e8446c1971.tar.xz linux-dev-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 'include/linux/smp.h')
| -rw-r--r-- | include/linux/smp.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/smp.h b/include/linux/smp.h index c4414074bd88..eccae4690f41 100644 --- a/include/linux/smp.h +++ b/include/linux/smp.h @@ -196,4 +196,9 @@ extern void arch_enable_nonboot_cpus_end(void); void smp_setup_processor_id(void); +/* SMP core functions */ +int smpcfd_prepare_cpu(unsigned int cpu); +int smpcfd_dead_cpu(unsigned int cpu); +int smpcfd_dying_cpu(unsigned int cpu); + #endif /* __LINUX_SMP_H */ |