From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it0-f70.google.com (mail-it0-f70.google.com [209.85.214.70]) by kanga.kvack.org (Postfix) with ESMTP id 7ECBA6B0261 for ; Fri, 17 Jun 2016 03:57:54 -0400 (EDT) Received: by mail-it0-f70.google.com with SMTP id b126so163491876ite.3 for ; Fri, 17 Jun 2016 00:57:54 -0700 (PDT) Received: from mail-pa0-x242.google.com (mail-pa0-x242.google.com. [2607:f8b0:400e:c03::242]) by mx.google.com with ESMTPS id ff3si21083205pab.126.2016.06.17.00.57.54 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 17 Jun 2016 00:57:54 -0700 (PDT) Received: by mail-pa0-x242.google.com with SMTP id fg1so5345165pad.3 for ; Fri, 17 Jun 2016 00:57:54 -0700 (PDT) From: js1304@gmail.com Subject: [PATCH v3 3/9] mm/page_owner: copy last_migrate_reason in copy_page_owner() Date: Fri, 17 Jun 2016 16:57:33 +0900 Message-Id: <1466150259-27727-4-git-send-email-iamjoonsoo.kim@lge.com> In-Reply-To: <1466150259-27727-1-git-send-email-iamjoonsoo.kim@lge.com> References: <1466150259-27727-1-git-send-email-iamjoonsoo.kim@lge.com> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Vlastimil Babka , mgorman@techsingularity.net, Minchan Kim , Alexander Potapenko , Hugh Dickins , Michal Hocko , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Sasha Levin , Joonsoo Kim From: Joonsoo Kim 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(). Link: http://lkml.kernel.org/r/1464230275-25791-3-git-send-email-iamjoonsoo.kim@lge.com Signed-off-by: Joonsoo Kim Acked-by: Vlastimil Babka Cc: Mel Gorman Cc: Minchan Kim Cc: Alexander Potapenko Cc: Hugh Dickins Cc: Michal Hocko --- mm/page_owner.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/page_owner.c b/mm/page_owner.c index c6cda3e..73e202f 100644 --- a/mm/page_owner.c +++ b/mm/page_owner.c @@ -118,6 +118,7 @@ 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@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org