From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f47.google.com (mail-pa0-f47.google.com [209.85.220.47]) by kanga.kvack.org (Postfix) with ESMTP id 0DEC46B0005 for ; Mon, 14 Mar 2016 03:31:49 -0400 (EDT) Received: by mail-pa0-f47.google.com with SMTP id tt10so151731329pab.3 for ; Mon, 14 Mar 2016 00:31:49 -0700 (PDT) Received: from mail-pf0-x243.google.com (mail-pf0-x243.google.com. [2607:f8b0:400e:c00::243]) by mx.google.com with ESMTPS id kg1si5492535pad.81.2016.03.14.00.31.48 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 14 Mar 2016 00:31:48 -0700 (PDT) Received: by mail-pf0-x243.google.com with SMTP id x3so4189863pfb.0 for ; Mon, 14 Mar 2016 00:31:48 -0700 (PDT) From: js1304@gmail.com Subject: [PATCH 0/6] Add zone overlapping check Date: Mon, 14 Mar 2016 16:31:31 +0900 Message-Id: <1457940697-2278-1-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 , linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Rafael J. Wysocki" , Joonsoo Kim From: Joonsoo Kim 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-20160311. Thanks. [1]: https://lkml.org/lkml/2015/2/12/95 Joonsoo Kim (6): mm/page_alloc: fix same zone check in __pageblock_pfn_to_page() 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 | 10 +++++++--- mm/page_isolation.c | 1 + mm/page_owner.c | 3 +++ mm/vmstat.c | 7 +++++++ 5 files changed, 24 insertions(+), 6 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