diff options
Diffstat (limited to 'mm/page_table_check.c')
| -rw-r--r-- | mm/page_table_check.c | 25 |
1 files changed, 4 insertions, 21 deletions
diff --git a/mm/page_table_check.c b/mm/page_table_check.c index 2458281bff89..3692bea2ea2c 100644 --- a/mm/page_table_check.c +++ b/mm/page_table_check.c @@ -52,23 +52,6 @@ static struct page_table_check *get_page_table_check(struct page_ext *page_ext) return (void *)(page_ext) + page_table_check_ops.offset; } -static inline bool pte_user_accessible_page(pte_t pte) -{ - return (pte_val(pte) & _PAGE_PRESENT) && (pte_val(pte) & _PAGE_USER); -} - -static inline bool pmd_user_accessible_page(pmd_t pmd) -{ - return pmd_leaf(pmd) && (pmd_val(pmd) & _PAGE_PRESENT) && - (pmd_val(pmd) & _PAGE_USER); -} - -static inline bool pud_user_accessible_page(pud_t pud) -{ - return pud_leaf(pud) && (pud_val(pud) & _PAGE_PRESENT) && - (pud_val(pud) & _PAGE_USER); -} - /* * An enty is removed from the page table, decrement the counters for that page * verify that it is of correct type and counters do not become negative. @@ -177,7 +160,7 @@ void __page_table_check_pmd_clear(struct mm_struct *mm, unsigned long addr, if (pmd_user_accessible_page(pmd)) { page_table_check_clear(mm, addr, pmd_pfn(pmd), - PMD_PAGE_SIZE >> PAGE_SHIFT); + PMD_SIZE >> PAGE_SHIFT); } } EXPORT_SYMBOL(__page_table_check_pmd_clear); @@ -190,7 +173,7 @@ void __page_table_check_pud_clear(struct mm_struct *mm, unsigned long addr, if (pud_user_accessible_page(pud)) { page_table_check_clear(mm, addr, pud_pfn(pud), - PUD_PAGE_SIZE >> PAGE_SHIFT); + PUD_SIZE >> PAGE_SHIFT); } } EXPORT_SYMBOL(__page_table_check_pud_clear); @@ -219,7 +202,7 @@ void __page_table_check_pmd_set(struct mm_struct *mm, unsigned long addr, __page_table_check_pmd_clear(mm, addr, *pmdp); if (pmd_user_accessible_page(pmd)) { page_table_check_set(mm, addr, pmd_pfn(pmd), - PMD_PAGE_SIZE >> PAGE_SHIFT, + PMD_SIZE >> PAGE_SHIFT, pmd_write(pmd)); } } @@ -234,7 +217,7 @@ void __page_table_check_pud_set(struct mm_struct *mm, unsigned long addr, __page_table_check_pud_clear(mm, addr, *pudp); if (pud_user_accessible_page(pud)) { page_table_check_set(mm, addr, pud_pfn(pud), - PUD_PAGE_SIZE >> PAGE_SHIFT, + PUD_SIZE >> PAGE_SHIFT, pud_write(pud)); } } |