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Date: Fri, 25 Apr 2025 16:34:41 +0200
From: Christoph Hellwig <hch@lst.de>
To: Ming Lei <ming.lei@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>, linux-block@vger.kernel.org,
	Nilay Shroff <nilay@linux.ibm.com>,
	Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>,
	Thomas =?iso-8859-1?Q?Hellstr=F6m?= <thomas.hellstrom@linux.intel.com>,
	Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH V3 10/20] block: move blk_unregister_queue() &
 device_del() after freeze wait
Message-ID: <20250425143441.GE11082@lst.de>
References: <20250424152148.1066220-1-ming.lei@redhat.com> <20250424152148.1066220-11-ming.lei@redhat.com>
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On Thu, Apr 24, 2025 at 11:21:33PM +0800, Ming Lei wrote:
> Move blk_unregister_queue() & device_del() after freeze wait, and prepare
> for unifying elevator switch.
> 
> This way is just fine, since bdev has been unhashed at the beginning of
> del_gendisk(), both blk_unregister_queue() & device_del() are dealing
> with kobject & debugfs thing only.

Can you please add a reference to the previous attempt here and that
it was backed out again and why we think it's fine this time around?