Messages in this thread Patch in this message | | | From | js1304@gmail ... | Subject | [PATCH 3/6] mm/page_owner: copy last_migrate_reason in copy_page_owner() | Date | Tue, 3 May 2016 14:23:01 +0900 |
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From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
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@lge.com> --- 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
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