From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f52.google.com (mail-pa0-f52.google.com [209.85.220.52]) by kanga.kvack.org (Postfix) with ESMTP id C38856B007E for ; Thu, 31 Mar 2016 22:06:57 -0400 (EDT) Received: by mail-pa0-f52.google.com with SMTP id fe3so79129896pab.1 for ; Thu, 31 Mar 2016 19:06:57 -0700 (PDT) Received: from mail-pf0-x234.google.com (mail-pf0-x234.google.com. [2607:f8b0:400e:c00::234]) by mx.google.com with ESMTPS id y65si17733581pfa.146.2016.03.31.19.06.56 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 31 Mar 2016 19:06:56 -0700 (PDT) Received: by mail-pf0-x234.google.com with SMTP id e128so61468117pfe.3 for ; Thu, 31 Mar 2016 19:06:56 -0700 (PDT) From: js1304@gmail.com Subject: [PATCH v2 0/5] Add zone overlapping check Date: Fri, 1 Apr 2016 11:06:41 +0900 Message-Id: <1459476406-28418-1-git-send-email-iamjoonsoo.kim@lge.com> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Rik van Riel , Johannes Weiner , Mel Gorman , Laura Abbott , Minchan Kim , Marek Szyprowski , Michal Nazarewicz , "Aneesh Kumar K.V" , Vlastimil Babka , "Rafael J. Wysocki" , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Joonsoo Kim From: Joonsoo Kim Change from v1 o drop patch 1 ("mm/page_alloc: fix same zone check in __pageblock_pfn_to_page()") per Mel's comment Hello, all. This patchset deals with some problematic sites that iterate pfn range. There is a system that node's pfn are overlapped like as following. -----pfn--------> N0 N1 N2 N0 N1 N2 Therefore, we need to care this overlapping when iterating pfn range. I audit many iterating sites that uses pfn_valid(), pfn_valid_within(), zone_start_pfn and etc. and others looks safe for me. This is a preparation step for new CMA implementation, ZONE_CMA [1], because it would be easily overlapped with other zones. But, zone overlap check is also needed for general case so I send it separately. This is based on next-20160330. Thanks. [1]: https://lkml.org/lkml/2015/2/12/95 Joonsoo Kim (5): mm/hugetlb: add same zone check in pfn_range_valid_gigantic() mm/memory_hotplug: add comment to some functions related to memory hotplug mm/vmstat: add zone range overlapping check mm/page_owner: add zone range overlapping check power: add zone range overlapping check mm/hugetlb.c | 9 ++++++--- mm/page_alloc.c | 7 ++++++- mm/page_isolation.c | 1 + mm/page_owner.c | 3 +++ mm/vmstat.c | 7 +++++++ 5 files changed, 23 insertions(+), 4 deletions(-) -- 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