diff options
| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2015-04-15 00:46:14 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-15 01:49:02 +0200 |
| commit | 982333683385343d8d2db9a1df69c98406f42687 (patch) | |
| tree | 2ce273cf325bcad64d032090344778fb0267f59a /arch/x86/include/asm/pgtable.h | |
| parent | um: expose number of page table levels (diff) | |
| download | linux-982333683385343d8d2db9a1df69c98406f42687.tar.xz linux-982333683385343d8d2db9a1df69c98406f42687.zip | |
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/include/asm/pgtable.h')
| -rw-r--r-- | arch/x86/include/asm/pgtable.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index a0c35bf6cb92..fe57e7a98839 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -551,7 +551,7 @@ static inline unsigned long pages_to_mb(unsigned long npg) return npg >> (20 - PAGE_SHIFT); } -#if PAGETABLE_LEVELS > 2 +#if CONFIG_PGTABLE_LEVELS > 2 static inline int pud_none(pud_t pud) { return native_pud_val(pud) == 0; @@ -594,9 +594,9 @@ static inline int pud_large(pud_t pud) { return 0; } -#endif /* PAGETABLE_LEVELS > 2 */ +#endif /* CONFIG_PGTABLE_LEVELS > 2 */ -#if PAGETABLE_LEVELS > 3 +#if CONFIG_PGTABLE_LEVELS > 3 static inline int pgd_present(pgd_t pgd) { return pgd_flags(pgd) & _PAGE_PRESENT; @@ -633,7 +633,7 @@ static inline int pgd_none(pgd_t pgd) { return !native_pgd_val(pgd); } -#endif /* PAGETABLE_LEVELS > 3 */ +#endif /* CONFIG_PGTABLE_LEVELS > 3 */ #endif /* __ASSEMBLY__ */ |