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x86: sparsemem: reduce i386 PAE section size

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A 1G section size makes memory hotplug too coarse in a virtual
environment.  Retuce it by a factor of 2 to 512M.  I would have liked
to make it smaller, but it runs out of reserved flags in the page flags.

Signed-off-by: Jeremy Fitzhardinge <[email protected]>
Cc: KAMEZAWA Hiroyuki <[email protected]>
Cc: Yasunori Goto <[email protected]>
Cc: Christoph Lameter <[email protected]>
Cc: Dave Hansen <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Jeremy Fitzhardinge 2008-03-27 17:28:39 -07:00 • committed by Ingo Molnar
commit fb8e837539
1 changed files with 1 additions and 1 deletions
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2
include/asm-x86/sparsemem.h
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@ -16,7 +16,7 @@
#ifdef CONFIG_X86_32
# ifdef CONFIG_X86_PAE
# define SECTION_SIZE_BITS 30
# define SECTION_SIZE_BITS 29
# define MAX_PHYSADDR_BITS 36
# define MAX_PHYSMEM_BITS 36
# else