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Message-ID: <d7bc4553-05c7-f4db-e38a-19980cec90d6@suse.de>
Date: Fri, 14 Apr 2023 15:56:19 +0200
From: Hannes Reinecke <hare@...e.de>
To: Matthew Wilcox <willy@...radead.org>
Cc: Pankaj Raghav <p.raghav@...sung.com>, brauner@...nel.org,
viro@...iv.linux.org.uk, akpm@...ux-foundation.org,
linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
mcgrof@...nel.org, gost.dev@...sung.com
Subject: Re: [RFC 0/4] convert create_page_buffers to create_folio_buffers
On 4/14/23 15:51, Matthew Wilcox wrote:
> On Fri, Apr 14, 2023 at 03:47:13PM +0200, Hannes Reinecke wrote:
>> BTW; I've got another patch replacing 'writepage' with 'write_folio'
>> (and the corresponding argument update). Is that a direction you want to go?
>
> No; ->writepage is being deleted. It's already gone from ext4 and xfs.
Aw.
And here's me having converted block/fops over to using iomap w/
iomap_writepage(). Tough.
Oh well.
Wasn't a great fit anyway as for a sb_bread() replacement we would need
a sub-page access for iomap.
Question is whether we really need that or shouldn't read PAGE_SIZE
sectors always. Surely would make life easier. And would save us all the
logic with bh_lru etc as we can rely on the page cache.
But probably an item for the iomap discussion at LSF.
Unless you got plans already ...
Cheers,
Hannes
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