mm: thp: fix BUG on mm->nr_ptes

[pandora-kernel.git] / mm / migrate.c

diff --git a/mm/migrate.c b/mm/migrate.c
index 9871a56..1503b6b 100644 (file)
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -445,7 +445,6 @@ void migrate_page_copy(struct page *newpage, struct page *page)
        ClearPageSwapCache(page);
        ClearPagePrivate(page);
        set_page_private(page, 0);
-       page->mapping = NULL;
 
        /*
         * If any waiters have accumulated on the new page then
@@ -667,6 +666,7 @@ static int move_to_new_page(struct page *newpage, struct page *page,
        } else {
                if (remap_swapcache)
                        remove_migration_ptes(page, newpage);
+               page->mapping = NULL;
        }
 
        unlock_page(newpage);
@@ -839,8 +839,6 @@ static int unmap_and_move(new_page_t get_new_page, unsigned long private,
        if (!newpage)
                return -ENOMEM;
 
-       mem_cgroup_reset_owner(newpage);
-
        if (page_count(page) == 1) {
                /* page was freed from under us. So we are done. */
                goto out;