diff options
Diffstat (limited to 'mm/migrate.c')
| -rw-r--r-- | mm/migrate.c | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/mm/migrate.c b/mm/migrate.c index b0406d739ea7..e4a5c912983d 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -375,7 +375,7 @@ void migrate_page_copy(struct page *newpage, struct page *page) * redo the accounting that clear_page_dirty_for_io undid, * but we can't use set_page_dirty because that function * is actually a signal that all of the page has become dirty. - * Wheras only part of our page may be dirty. + * Whereas only part of our page may be dirty. */ __set_page_dirty_nobuffers(newpage); } @@ -721,15 +721,11 @@ static int unmap_and_move(new_page_t get_new_page, unsigned long private, * Only page_lock_anon_vma() understands the subtleties of * getting a hold on an anon_vma from outside one of its mms. */ - anon_vma = page_lock_anon_vma(page); + anon_vma = page_get_anon_vma(page); if (anon_vma) { /* - * Take a reference count on the anon_vma if the - * page is mapped so that it is guaranteed to - * exist when the page is remapped later + * Anon page */ - get_anon_vma(anon_vma); - page_unlock_anon_vma(anon_vma); } else if (PageSwapCache(page)) { /* * We cannot be sure that the anon_vma of an unmapped @@ -857,13 +853,8 @@ static int unmap_and_move_huge_page(new_page_t get_new_page, lock_page(hpage); } - if (PageAnon(hpage)) { - anon_vma = page_lock_anon_vma(hpage); - if (anon_vma) { - get_anon_vma(anon_vma); - page_unlock_anon_vma(anon_vma); - } - } + if (PageAnon(hpage)) + anon_vma = page_get_anon_vma(hpage); try_to_unmap(hpage, TTU_MIGRATION|TTU_IGNORE_MLOCK|TTU_IGNORE_ACCESS); |