linux-kernel - Re: [PATCH v4 3/4] mm/pageblock: work around multiple arch's cmpxchg support issue

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Message-ID: <21144022-cf75-5b4f-4645-a7f0746b025d@linux.alibaba.com>
Date:   Thu, 3 Sep 2020 16:50:50 +0800
From:   Alex Shi <alex.shi@...ux.alibaba.com>
To:     Max Filippov <jcmvbkbc@...il.com>
Cc:     Anshuman Khandual <anshuman.khandual@....com>,
        David Hildenbrand <david@...hat.com>,
        Matthew Wilcox <willy@...radead.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Alexander Duyck <alexander.duyck@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Baolin Wang <baolin.wang@...ux.alibaba.com>,
        Russell King <linux@...linux.org.uk>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        "David S. Miller" <davem@...emloft.net>,
        Chris Zankel <chris@...kel.net>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-arm-kernel@...ts.infradead.org,
        "open list:SUPERH" <linux-sh@...r.kernel.org>,
        "open list:SPARC + UltraSPAR..." <sparclinux@...r.kernel.org>,
        "open list:TENSILICA XTENSA PORT (xtensa)" 
        <linux-xtensa@...ux-xtensa.org>,
        Linux Memory Management List <linux-mm@...ck.org>
Subject: Re: [PATCH v4 3/4] mm/pageblock: work around multiple arch's cmpxchg
 support issue



在 2020/9/3 下午3:29, Max Filippov 写道:
>> diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
>> index e997e0119c02..862b008ab09e 100644
>> --- a/arch/xtensa/Kconfig
>> +++ b/arch/xtensa/Kconfig
>> @@ -42,6 +42,7 @@ config XTENSA
>>         select MODULES_USE_ELF_RELA
>>         select PERF_USE_VMALLOC
>>         select VIRT_TO_BUS
>> +       select NO_CMPXCHG_BYTE
> Please keep the lists of select statements in Kconfig files above
> alphabetically sorted.

Hi Max,

Thanks for the reminder, Let's comments from Mel Gorman.

Thanks!