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Re: [PATCH RFC v3 for-6.8/block 04/17] mtd: block2mtd: use bdev apis
- To: Jan Kara <jack@xxxxxxx>
- From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
- Date: Thu, 4 Jan 2024 22:10:17 -0800
- Cc: Yu Kuai <yukuai1@xxxxxxxxxxxxxxx>, axboe@xxxxxxxxx, roger.pau@xxxxxxxxxx, colyli@xxxxxxx, kent.overstreet@xxxxxxxxx, joern@xxxxxxxxxxxxxxx, miquel.raynal@xxxxxxxxxxx, richard@xxxxxx, vigneshr@xxxxxx, sth@xxxxxxxxxxxxx, hoeppner@xxxxxxxxxxxxx, hca@xxxxxxxxxxxxx, gor@xxxxxxxxxxxxx, agordeev@xxxxxxxxxxxxx, jejb@xxxxxxxxxxxxx, martin.petersen@xxxxxxxxxx, clm@xxxxxx, josef@xxxxxxxxxxxxxx, dsterba@xxxxxxxx, viro@xxxxxxxxxxxxxxxxxx, brauner@xxxxxxxxxx, nico@xxxxxxxxxxx, xiang@xxxxxxxxxx, chao@xxxxxxxxxx, tytso@xxxxxxx, adilger.kernel@xxxxxxxxx, jack@xxxxxxxx, konishi.ryusuke@xxxxxxxxx, willy@xxxxxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, hare@xxxxxxx, p.raghav@xxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-bcache@xxxxxxxxxxxxxxx, linux-mtd@xxxxxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-scsi@xxxxxxxxxxxxxxx, linux-bcachefs@xxxxxxxxxxxxxxx, linux-btrfs@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-erofs@xxxxxxxxxxxxxxxx, linux-ext4@xxxxxxxxxxxxxxx, linux-nilfs@xxxxxxxxxxxxxxx, yukuai3@xxxxxxxxxx, yi.zhang@xxxxxxxxxx, yangerkun@xxxxxxxxxx
- Delivery-date: Fri, 05 Jan 2024 06:10:47 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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.
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