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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2015-04-14 15:46:14 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-14 16:49:02 -0700 |
| commit | 982333683385343d8d2db9a1df69c98406f42687 (patch) | |
| tree | 2ce273cf325bcad64d032090344778fb0267f59a /arch/x86/Kconfig | |
| parent | 6b8ce2a1a464526335672c33cbf3cb9fc638efff (diff) | |
| download | op-kernel-dev-982333683385343d8d2db9a1df69c98406f42687.zip op-kernel-dev-982333683385343d8d2db9a1df69c98406f42687.tar.gz | |
x86: expose number of page table levels on Kconfig level
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>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.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/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index faff693..3e3aaad 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -277,6 +277,12 @@ config ARCH_SUPPORTS_UPROBES config FIX_EARLYCON_MEM def_bool y +config PGTABLE_LEVELS + int + default 4 if X86_64 + default 3 if X86_PAE + default 2 + source "init/Kconfig" source "kernel/Kconfig.freezer" |
