linux-ext4 - Re: [PATCH RFC v3 for-6.8/block 04/17] mtd: block2mtd: use bdev apis

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Message-ID: <ZZedSYAedA05Oex2@infradead.org>
Date: Thu, 4 Jan 2024 22:10:17 -0800
From: Christoph Hellwig <hch@...radead.org>
To: Jan Kara <jack@...e.cz>
Cc: Yu Kuai <yukuai1@...weicloud.com>, axboe@...nel.dk,
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Subject: Re: [PATCH RFC v3 for-6.8/block 04/17] mtd: block2mtd: use bdev apis

On Thu, Jan 04, 2024 at 12:28:55PM +0100, Jan Kara wrote:
> What do you think? Because when we are working with the folios it is rather
> natural to use their mapping for dirty balancing?

The real problem is that block2mtd pokes way to deep into block
internals.

I think the saviour here is Christians series to replace the bdev handle
with a struct file, which will allow to use the normal file write path
here and get rid of the entire layering volation.