[PATCH] x86_64: Support memory hotadd without sparsemem
Memory hotadd doesn't need SPARSEMEM, but can be handled by just preallocating
mem_maps. This only needs some untangling of ifdefs to enable the necessary
code even without SPARSEMEM.
Originally from Keith Mannthey, hacked by AK.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 5cb9630..c24652d 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -329,7 +329,7 @@
config ACPI_HOTPLUG_MEMORY
tristate "Memory Hotplug"
depends on ACPI
- depends on MEMORY_HOTPLUG
+ depends on MEMORY_HOTPLUG || X86_64
default n
help
This driver adds supports for ACPI Memory Hotplug. This driver