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tile: expose number of page table levels 

We would want to use number of page table level to define mm_struct.
Let's expose it as CONFIG_PGTABLE_LEVELS.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Chris Metcalf <cmetcalf@ezchip.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Kirill A. Shutemov 2015-04-14 15:46:08 -07:00 committed by Linus Torvalds
parent 81a2936c1a
commit 909d45e628
1 changed files with 5 additions and 0 deletions
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arch/tile/Kconfig
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@ -147,6 +147,11 @@ config ARCH_DEFCONFIG
default "arch/tile/configs/tilepro_defconfig" if !TILEGX
default "arch/tile/configs/tilegx_defconfig" if TILEGX
config PGTABLE_LEVELS
int
default 3 if 64BIT
default 2
source "init/Kconfig"
source "kernel/Kconfig.freezer"