Macros for operating on pmd in simillar way like for pte. Signed-off-by: Radosław Smogura <mail@xxxxxxxxxx> --- arch/x86/include/asm/pgtable.h | 21 +++++++++++++++++++++ 1 files changed, 21 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 49afb3f..38fd008 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -265,6 +265,11 @@ static inline pmd_t pmd_wrprotect(pmd_t pmd) return pmd_clear_flags(pmd, _PAGE_RW); } +static inline int pmd_dirty(pmd_t pmd) +{ + return pmd_flags(pmd) & _PAGE_DIRTY; +} + static inline pmd_t pmd_mkdirty(pmd_t pmd) { return pmd_set_flags(pmd, _PAGE_DIRTY); @@ -285,6 +290,11 @@ static inline pmd_t pmd_mkwrite(pmd_t pmd) return pmd_set_flags(pmd, _PAGE_RW); } +static inline pmd_t pmd_writeprotect(pmd_t pmd) +{ + return pmd_clear_flags(pmd, _PAGE_RW); +} + static inline pmd_t pmd_mknotpresent(pmd_t pmd) { return pmd_clear_flags(pmd, _PAGE_PRESENT); @@ -731,6 +741,17 @@ static inline int pmd_write(pmd_t pmd) return pmd_flags(pmd) & _PAGE_RW; } +#define __HAVE_ARCH_PMD_EXEC +static inline int pmd_exec(pmd_t pmd) +{ + return !(pmd_flags(pmd) & _PAGE_NX); +} + +static inline void pmd_mkexec(pmd_t pmd) +{ + pmd_clear_flags(pmd, _PAGE_NX); +} + #define __HAVE_ARCH_PMDP_GET_AND_CLEAR static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp) -- 1.7.3.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>