linux-kernel - Re: [RFC PATCH 1/3] mm: Drop locked from isolate_migratepages

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Message-ID: <d56ee23c-3c79-33e4-6702-a7d586acb0ac@linux.alibaba.com>
Date:   Fri, 14 Aug 2020 15:25:11 +0800
From:   Alex Shi <alex.shi@...ux.alibaba.com>
To:     Alexander Duyck <alexander.duyck@...il.com>
Cc:     Yang Shi <yang.shi@...ux.alibaba.com>,
        kbuild test robot <lkp@...el.com>,
        Rong Chen <rong.a.chen@...el.com>,
        Konstantin Khlebnikov <khlebnikov@...dex-team.ru>,
        "Kirill A. Shutemov" <kirill@...temov.name>,
        Hugh Dickins <hughd@...gle.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Daniel Jordan <daniel.m.jordan@...cle.com>,
        linux-mm <linux-mm@...ck.org>,
        Shakeel Butt <shakeelb@...gle.com>,
        Matthew Wilcox <willy@...radead.org>,
        Johannes Weiner <hannes@...xchg.org>,
        Tejun Heo <tj@...nel.org>, cgroups@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Wei Yang <richard.weiyang@...il.com>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Joonsoo Kim <iamjoonsoo.kim@....com>
Subject: Re: [RFC PATCH 1/3] mm: Drop locked from isolate_migratepages_block



在 2020/8/13 下午10:32, Alexander Duyck 写道:
>> Thanks a lot!
>> Don't know if community is ok if we keep the patch following whole patchset alone?
> I am fine with you squashing it with another patch if you want. In
> theory this could probably be squashed in with the earlier patch I
> submitted that introduced lruvec_holds_page_lru_lock or some other
> patch. It is mostly just a cleanup anyway as it gets us away from
> needing to hold the RCU read lock in the case that we already have the
> correct lruvec.

Hi Alexander,

Thanks a lot! look like it's better to fold it in patch 17.

Alex