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Date: Tue, 16 Jan 2024 13:35:03 -0800
From: Andrew Morton <akpm@linux-foundation.org>
To: Yosry Ahmed <yosryahmed@google.com>
Cc: Matthew Wilcox <willy@infradead.org>, Johannes Weiner
 <hannes@cmpxchg.org>, Vlastimil Babka <vbabka@suse.cz>, Christoph Hellwig
 <hch@infradead.org>, Nhat Pham <nphamcs@gmail.com>, Domenico Cerasuolo
 <cerasuolodomenico@gmail.com>, konrad.wilk@oracle.com,
 vitaly.wool@konsulko.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm: kill frontswap
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On Tue, 16 Jan 2024 12:22:03 -0800 Yosry Ahmed <yosryahmed@google.com> wrote:

> On Tue, Jan 16, 2024 at 12:18 PM Matthew Wilcox <willy@infradead.org> wrote:
> >
> > On Tue, Jan 16, 2024 at 12:09:44PM -0800, Andrew Morton wrote:
> > > On Mon, 17 Jul 2023 12:02:27 -0400 Johannes Weiner <hannes@cmpxchg.org> wrote:
> > >
> > > > The only user of frontswap is zswap, and has been for a long
> > > > time. Have swap call into zswap directly and remove the indirection.
> > >
> > > This falls afoul of "mm: zswap: multiple zpools support".  Could we
> > > please have a version against mm-unstable or linux-next?
> >
> > Did this email get caught in a timewarp?  Or is it referring to
> > something that isn't commit 42c06a0e8ebe from six months ago?
> 
> +1. Both of these changes have been in Linus's tree for a while now.
> Perhaps Andrew had this email prepared a while ago and never sent it,
> and ended up fixing the problem himself.

erp, sorry, Flushing out the drafts folder after a long flight.  On a
wifi-free airline, wtf.