diff options
Diffstat (limited to 'arch/tile/include/asm/pgtable_32.h')
| -rw-r--r-- | arch/tile/include/asm/pgtable_32.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/tile/include/asm/pgtable_32.h b/arch/tile/include/asm/pgtable_32.h index b935fb2ad4f3..53ec34884744 100644 --- a/arch/tile/include/asm/pgtable_32.h +++ b/arch/tile/include/asm/pgtable_32.h @@ -89,15 +89,27 @@ static inline int pgd_addr_invalid(unsigned long addr) /* * Provide versions of these routines that can be used safely when * the hypervisor may be asynchronously modifying dirty/accessed bits. + * ptep_get_and_clear() matches the generic one but we provide it to + * be parallel with the 64-bit code. */ #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG #define __HAVE_ARCH_PTEP_SET_WRPROTECT +#define __HAVE_ARCH_PTEP_GET_AND_CLEAR extern int ptep_test_and_clear_young(struct vm_area_struct *, unsigned long addr, pte_t *); extern void ptep_set_wrprotect(struct mm_struct *, unsigned long addr, pte_t *); +#define __HAVE_ARCH_PTEP_GET_AND_CLEAR +static inline pte_t ptep_get_and_clear(struct mm_struct *mm, + unsigned long addr, pte_t *ptep) +{ + pte_t pte = *ptep; + pte_clear(_mm, addr, ptep); + return pte; +} + /* Create a pmd from a PTFN. */ static inline pmd_t ptfn_pmd(unsigned long ptfn, pgprot_t prot) { |