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Date:   Fri, 20 Nov 2020 09:47:50 +0100
From:   Michal Hocko <>
To:     Muchun Song <>
Cc:     Jonathan Corbet <>,
        Mike Kravetz <>,
        Thomas Gleixner <>,,,,,,,
        Peter Zijlstra <>,,
        Andrew Morton <>,,,,
        Randy Dunlap <>,,,,
        Mina Almasry <>,
        David Rientjes <>,
        Matthew Wilcox <>,
        Oscar Salvador <>,
        "Song Bao Hua (Barry Song)" <>,
        Xiongchun duan <>,, LKML <>,
        Linux Memory Management List <>,
        linux-fsdevel <>
Subject: Re: [External] Re: [PATCH v5 03/21] mm/hugetlb: Introduce a new

On Fri 20-11-20 16:35:16, Muchun Song wrote:
> > That being said, unless there are huge advantages to introduce a
> > config option I would rather not add it because our config space is huge
> > already and the more we add the more future code maintainance that will
> > add. If you want the config just for dependency checks then fine by me.
> Yeah, it is only for dependency checks :)

OK, I must have misread the definition to think that it requires user to
enable explicitly.

Anyway this feature cannot be really on by default due to overhead. So
the command line option default has to be flipped.

Michal Hocko

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