linux-kernel - Re: bio_vec, bv

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Message-ID: <ZZPUKHTQ//eL53SM@casper.infradead.org>
Date: Tue, 2 Jan 2024 09:15:20 +0000
From: Matthew Wilcox <willy@...radead.org>
To: David Howells <dhowells@...hat.com>
Cc: Christoph Hellwig <hch@....de>, linux-fsdevel@...r.kernel.org,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: bio_vec, bv_page and folios

On Tue, Jan 02, 2024 at 08:56:46AM +0000, David Howells wrote:
> Hi Christoph, Willy,
> 
> Will bv_page in struct bio_vec ever become a folio pointer rather than I page
> pointer?  I'm guessing not as it still presumably needs to be able to point to
> non-folio pages.

My plan for bio_vec is that it becomes phyr -- a physical address +
length.  No more page or folio reference.