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-rw-r--r--arch/x86_64/Kconfig7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 145bb824b2a8..5ce94430c019 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -428,12 +428,15 @@ config NR_CPUS
428 memory in the static kernel configuration. 428 memory in the static kernel configuration.
429 429
430config HOTPLUG_CPU 430config HOTPLUG_CPU
431 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" 431 bool "Support for suspend on SMP and hot-pluggable CPUs (EXPERIMENTAL)"
432 depends on SMP && HOTPLUG && EXPERIMENTAL 432 depends on SMP && HOTPLUG && EXPERIMENTAL
433 help 433 help
434 Say Y here to experiment with turning CPUs off and on. CPUs 434 Say Y here to experiment with turning CPUs off and on. CPUs
435 can be controlled through /sys/devices/system/cpu/cpu#. 435 can be controlled through /sys/devices/system/cpu/cpu#.
436 Say N if you want to disable CPU hotplug. 436 This is also required for suspend/hibernation on SMP systems.
437
438 Say N if you want to disable CPU hotplug and don't need to
439 suspend.
437 440
438config ARCH_ENABLE_MEMORY_HOTPLUG 441config ARCH_ENABLE_MEMORY_HOTPLUG
439 def_bool y 442 def_bool y