diff options
Diffstat (limited to 'mm/page_table_check.c')
| -rw-r--r-- | mm/page_table_check.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/mm/page_table_check.c b/mm/page_table_check.c index e2062748791a..433dbce13fe1 100644 --- a/mm/page_table_check.c +++ b/mm/page_table_check.c @@ -53,7 +53,7 @@ static struct page_table_check *get_page_table_check(struct page_ext *page_ext) } /* - * An enty is removed from the page table, decrement the counters for that page + * An entry 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. */ static void page_table_check_clear(struct mm_struct *mm, unsigned long addr, @@ -68,7 +68,7 @@ static void page_table_check_clear(struct mm_struct *mm, unsigned long addr, return; page = pfn_to_page(pfn); - page_ext = lookup_page_ext(page); + page_ext = page_ext_get(page); anon = PageAnon(page); for (i = 0; i < pgcnt; i++) { @@ -83,10 +83,11 @@ static void page_table_check_clear(struct mm_struct *mm, unsigned long addr, } page_ext = page_ext_next(page_ext); } + page_ext_put(page_ext); } /* - * A new enty is added to the page table, increment the counters for that page + * A new entry is added to the page table, increment the counters for that page * verify that it is of correct type and is not being mapped with a different * type to a different process. */ @@ -103,7 +104,7 @@ static void page_table_check_set(struct mm_struct *mm, unsigned long addr, return; page = pfn_to_page(pfn); - page_ext = lookup_page_ext(page); + page_ext = page_ext_get(page); anon = PageAnon(page); for (i = 0; i < pgcnt; i++) { @@ -118,6 +119,7 @@ static void page_table_check_set(struct mm_struct *mm, unsigned long addr, } page_ext = page_ext_next(page_ext); } + page_ext_put(page_ext); } /* @@ -126,9 +128,10 @@ static void page_table_check_set(struct mm_struct *mm, unsigned long addr, */ void __page_table_check_zero(struct page *page, unsigned int order) { - struct page_ext *page_ext = lookup_page_ext(page); + struct page_ext *page_ext; unsigned long i; + page_ext = page_ext_get(page); BUG_ON(!page_ext); for (i = 0; i < (1ul << order); i++) { struct page_table_check *ptc = get_page_table_check(page_ext); @@ -137,6 +140,7 @@ void __page_table_check_zero(struct page *page, unsigned int order) BUG_ON(atomic_read(&ptc->file_map_count)); page_ext = page_ext_next(page_ext); } + page_ext_put(page_ext); } void __page_table_check_pte_clear(struct mm_struct *mm, unsigned long addr, |