[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>

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 670fdb5..4aa26ac 100644 (file)
--- 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"