[ACPI] update CONFIG_ACPI_CONTAINER Kconfig help

Signed-off-by: Keiichiro Tokunaga <tokunaga.keiich@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 670fdb5142d1..4aa26acbc46d 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -327,8 +327,13 @@ config ACPI_CONTAINER
         depends on EXPERIMENTAL
         default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
          ---help---
-                This is the ACPI generic container driver which supports
-                ACPI0004, PNP0A05 and PNP0A06 devices
+          This allows _physical_ insertion and removal of CPUs and memory.
+          This can be useful, for example, on NUMA machines that support
+          ACPI based physical hotplug of nodes, or non-NUMA machines that
+          support physical cpu/memory hot-plug.
+
+          If one selects "m", this driver can be loaded with
+          "modprobe acpi_container".
 
 config ACPI_HOTPLUG_MEMORY
         tristate "Memory Hotplug"