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[PATCH] x86_64: Support memory hotadd without sparsemem

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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>
This commit is contained in:
Andi Kleen
2006-04-07 19:49:15 +02:00
committed by Linus Torvalds
parent 805e8c03c9
commit 9d99aaa31f
6 changed files with 47 additions and 12 deletions
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3
include/linux/init.h
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@@ -245,7 +245,8 @@ void __init parse_early_param(void);
#define __cpuexitdata __exitdata
#endif
#ifdef CONFIG_MEMORY_HOTPLUG
#if defined(CONFIG_MEMORY_HOTPLUG) || defined(CONFIG_ACPI_HOTPLUG_MEMORY) \
|| defined(CONFIG_ACPI_HOTPLUG_MEMORY_MODULE)
#define __meminit
#define __meminitdata
#define __memexit