patch-2_6_7-vs1_9_1_12

[linux-2.6.git] / arch / ia64 / Kconfig

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index ff8970d..5bc74ca 100644 (file)
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -244,6 +244,15 @@ config NR_CPUS
          than 64 will cause the use of a CPU mask array, causing a small
          performance hit.
 
+config HOTPLUG_CPU
+    bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
+    depends on SMP && HOTPLUG && EXPERIMENTAL
+       default n
+    ---help---
+      Say Y here to experiment with turning CPUs off and on.  CPUs
+      can be controlled through /sys/devices/system/cpu/cpu#.
+      Say N if you want to disable CPU hotplug.
+
 config PREEMPT
        bool "Preemptible Kernel"
         help