diff options
| -rw-r--r-- | mm/migrate.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/mm/migrate.c b/mm/migrate.c index 4e0eccca5e26..449d77d409f5 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -383,7 +383,14 @@ static void migrate_page_copy(struct page *newpage, struct page *page) if (PageDirty(page)) { clear_page_dirty_for_io(page); - set_page_dirty(newpage); + /* + * Want to mark the page and the radix tree as dirty, and + * 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. + */ + __set_page_dirty_nobuffers(newpage); } #ifdef CONFIG_SWAP |