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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2015-04-15 01:46:11 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-15 02:49:02 +0300 |
| commit | 6b8ce2a1a464526335672c33cbf3cb9fc638efff (patch) | |
| tree | 473ad14902d77f4b264d3573a0a8f5e545714439 /arch | |
| parent | 909d45e62801ea77422d478519baa7d2287c77f7 (diff) | |
| download | linux-6b8ce2a1a464526335672c33cbf3cb9fc638efff.tar.xz | |
um: 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: Richard Weinberger <richard@nod.at>
Cc: Jeff Dike <jdike@addtoit.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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/um/Kconfig.um | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/um/Kconfig.um b/arch/um/Kconfig.um index a7520c90f62d..5dbfe3d9107c 100644 --- a/arch/um/Kconfig.um +++ b/arch/um/Kconfig.um @@ -155,3 +155,8 @@ config MMAPPER config NO_DMA def_bool y + +config PGTABLE_LEVELS + int + default 3 if 3_LEVEL_PGTABLES + default 2 |