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Date: Fri, 19 Jan 2024 13:31:39 -0700
From: Keith Busch <kbusch@kernel.org>
To: Matthew Wilcox <willy@infradead.org>
Cc: lsf-pc@lists.linux-foundation.org, linux-fsdevel@vger.kernel.org,
	linux-mm@kvack.org, linux-block@vger.kernel.org,
	linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org,
	linux-nvme@lists.infradead.org, bpf@vger.kernel.org
Subject: Re: [LSF/MM/BPF TOPIC] State Of The Page
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In-Reply-To: <ZaqiPSj1wMrTMdHa@casper.infradead.org>

On Fri, Jan 19, 2024 at 04:24:29PM +0000, Matthew Wilcox wrote:
> It's probably worth doing another roundup of where we are on our journey
> to separating folios, slabs, pages, etc.  Something suitable for people
> who aren't MM experts, and don't care about the details of how page
> allocation works.  I can talk for hours about whatever people want to
> hear about but some ideas from me:
> 
>  - Overview of how the conversion is going
>  - Convenience functions for filesystem writers
>  - What's next?
>  - What's the difference between &folio->page and page_folio(folio, 0)?
>  - What are we going to do about bio_vecs?
>  - How does all of this work with kmap()?
> 
> I'm sure people would like to suggest other questions they have that
> aren't adequately answered already and might be of interest to a wider
> audience.

Thanks for suggesting this, I would like to attend your discussion. If
you have more recent phyr thoughts (possibly related to your bio_vecs
point?), or other tie-ins to large block size support, that would also
be great.