diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-x86/pgtable.h | 15 | ||||
| -rw-r--r-- | include/asm-x86/pgtable_32.h | 16 |
2 files changed, 15 insertions, 16 deletions
diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h index b29a122fc1f..6452286e71a 100644 --- a/include/asm-x86/pgtable.h +++ b/include/asm-x86/pgtable.h @@ -155,6 +155,21 @@ static inline pmd_t pfn_pmd(unsigned long page_nr, pgprot_t pgprot) pgprot_val(pgprot)) & __supported_pte_mask); } +static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) +{ + pteval_t val = pte_val(pte); + + /* + * Chop off the NX bit (if present), and add the NX portion of + * the newprot (if present): + */ + val &= _PAGE_CHG_MASK & ~_PAGE_NX; + val |= pgprot_val(newprot) & __supported_pte_mask; + + return __pte(val); +} + + #endif /* __ASSEMBLY__ */ #ifdef CONFIG_X86_32 diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h index 0aaefdda515..109dad5e16e 100644 --- a/include/asm-x86/pgtable_32.h +++ b/include/asm-x86/pgtable_32.h @@ -235,22 +235,6 @@ static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count) #define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot)) -static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) -{ - pte.pte_low &= _PAGE_CHG_MASK; - pte.pte_low |= pgprot_val(newprot); -#ifdef CONFIG_X86_PAE - /* - * Chop off the NX bit (if present), and add the NX portion of - * the newprot (if present): - */ - pte.pte_high &= ~(1 << (_PAGE_BIT_NX - 32)); - pte.pte_high |= (pgprot_val(newprot) >> 32) & \ - (__supported_pte_mask >> 32); -#endif - return pte; -} - /* * the pgd page can be thought of an array like this: pgd_t[PTRS_PER_PGD] * |