From: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> Currently, copy_page_owner() doesn't copy all the owner information. It skips last_migrate_reason because copy_page_owner() is used for migration and it will be properly set soon. But, following patch will use copy_page_owner() and this skip will cause the problem that allocated page has uninitialied last_migrate_reason. To prevent it, this patch also copy last_migrate_reason in copy_page_owner(). Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> --- mm/page_owner.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/page_owner.c b/mm/page_owner.c index 792b56d..6693959 100644 --- a/mm/page_owner.c +++ b/mm/page_owner.c @@ -101,6 +101,7 @@ void __copy_page_owner(struct page *oldpage, struct page *newpage) new_ext->order = old_ext->order; new_ext->gfp_mask = old_ext->gfp_mask; + new_ext->last_migrate_reason = old_ext->last_migrate_reason; new_ext->nr_entries = old_ext->nr_entries; for (i = 0; i < ARRAY_SIZE(new_ext->trace_entries); i++) -- 1.9.1 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>