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memblock: add NO_BOOTMEM config symbol 

With the NO_BOOTMEM symbol added architectures may now use the following
syntax to tell that they do not need bootmem:

	select NO_BOOTMEM

This is much more convinient than adding a new kconfig symbol which was
otherwise required.

Adding this symbol does not conflict with the architctures that already
define their own symbol.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Sam Ravnborg 2011-10-31 17:08:20 -07:00 committed by Linus Torvalds
parent 0a93ebef69
commit 6661672053
1 changed files with 3 additions and 0 deletions
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mm/Kconfig
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@ -131,6 +131,9 @@ config SPARSEMEM_VMEMMAP
config HAVE_MEMBLOCK
boolean
config NO_BOOTMEM
boolean
# eventually, we can have this option just 'select SPARSEMEM'
config MEMORY_HOTPLUG
bool "Allow for memory hot-add"