Re: [PATCH 1/9] block: consolidate the shutdown logic in blk_mark_disk_dead and del_gendisk

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To: Jan Kara <jack@xxxxxxx>
Subject: Re: [PATCH 1/9] block: consolidate the shutdown logic in blk_mark_disk_dead and del_gendisk
From: Christoph Hellwig <hch@xxxxxx>
Date: Tue, 9 May 2023 15:35:44 +0200
Cc: Christoph Hellwig <hch@xxxxxx>, Jens Axboe <axboe@xxxxxxxxx>, Al Viro <viro@xxxxxxxxxxxxxxxxxx>, Christian Brauner <brauner@xxxxxxxxxx>, "Darrick J. Wong" <djwong@xxxxxxxxxx>, linux-block@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-xfs@xxxxxxxxxxxxxxx
In-reply-to: <20230507190811.qbll5r3jsx35curi@quack3>
References: <20230505175132.2236632-1-hch@lst.de> <20230505175132.2236632-2-hch@lst.de> <20230507190811.qbll5r3jsx35curi@quack3>
User-agent: Mutt/1.5.17 (2007-11-01)

On Sun, May 07, 2023 at 09:08:11PM +0200, Jan Kara wrote:
> I'm somewhat wondering about the lost notification from
> blk_mark_disk_dead(). E.g. DM uses blk_mark_disk_dead() so if some udev
> script depends on the event when DM device gets destroyed, we would break
> it?

Maybe.  We'll probably find out..

References:
- introduce bdev holder ops and a file system shutdown method
  - From: Christoph Hellwig
- [PATCH 1/9] block: consolidate the shutdown logic in blk_mark_disk_dead and del_gendisk
  - From: Christoph Hellwig
- Re: [PATCH 1/9] block: consolidate the shutdown logic in blk_mark_disk_dead and del_gendisk
  - From: Jan Kara

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