linux-kernel - Re: Struct page proposal

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Message-ID: <YUybu+OCpCM2lZJu@moria.home.lan>
Date:   Thu, 23 Sep 2021 11:22:35 -0400
From:   Kent Overstreet <kent.overstreet@...il.com>
To:     David Hildenbrand <david@...hat.com>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, Johannes Weiner <hannes@...xchg.org>,
        Matthew Wilcox <willy@...radead.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        "Darrick J. Wong" <djwong@...nel.org>,
        Christoph Hellwig <hch@...radead.org>,
        David Howells <dhowells@...hat.com>
Subject: Re: Struct page proposal

On Thu, Sep 23, 2021 at 11:03:44AM +0200, David Hildenbrand wrote:
> Don't get me wrong, but before there are answers to some of the very basic
> questions raised above (especially everything that lives in page->flags,
> which are not only page flags, refcount, ...) this isn't very tempting to
> spend more time on, from a reviewer perspective.

Did you miss the part of the folios discussion where we were talking about how
acrimonious it had gotten and why, and talking about (Chris Mason in particular)
writing design docs up front and how they'd been pretty successful in other
places?

We're trying something new here, and trying to give people an opportunity to
discussion what we're trying to do _before_ dumping thousands and thousands of
lines of refactoring patches on the list.