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Date:   Tue, 5 Oct 2021 16:56:02 -0300
From:   Jason Gunthorpe <>
To:     Matthew Wilcox <>
Cc:     Johannes Weiner <>,
        Linus Torvalds <>,,,,
        Andrew Morton <>
Subject: Re: [GIT PULL] Memory folios for v5.15

On Tue, Oct 05, 2021 at 07:30:06PM +0100, Matthew Wilcox wrote:

> Outside of core MM developers, I'm not sure that a lot of people
> know that a struct page might represent 2^n pages of memory.  Even
> architecture maintainers seem to be pretty fuzzy on what
> flush_dcache_page() does for compound pages:

I definitely second that opinion

A final outcome where we still have struct page refering to all kinds
of different things feels like a missed opportunity to me.


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