diff options
Diffstat (limited to 'include/asm-generic/pgtable.h')
-rw-r--r-- | include/asm-generic/pgtable.h | 11 |
1 files changed, 1 insertions, 10 deletions
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h index 358e4d309ceb..c2059a3a0621 100644 --- a/include/asm-generic/pgtable.h +++ b/include/asm-generic/pgtable.h | |||
@@ -159,17 +159,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addres | |||
159 | #define lazy_mmu_prot_update(pte) do { } while (0) | 159 | #define lazy_mmu_prot_update(pte) do { } while (0) |
160 | #endif | 160 | #endif |
161 | 161 | ||
162 | #ifndef __HAVE_ARCH_MULTIPLE_ZERO_PAGE | 162 | #ifndef __HAVE_ARCH_MOVE_PTE |
163 | #define move_pte(pte, prot, old_addr, new_addr) (pte) | 163 | #define move_pte(pte, prot, old_addr, new_addr) (pte) |
164 | #else | ||
165 | #define move_pte(pte, prot, old_addr, new_addr) \ | ||
166 | ({ \ | ||
167 | pte_t newpte = (pte); \ | ||
168 | if (pte_present(pte) && pfn_valid(pte_pfn(pte)) && \ | ||
169 | pte_page(pte) == ZERO_PAGE(old_addr)) \ | ||
170 | newpte = mk_pte(ZERO_PAGE(new_addr), (prot)); \ | ||
171 | newpte; \ | ||
172 | }) | ||
173 | #endif | 164 | #endif |
174 | 165 | ||
175 | /* | 166 | /* |