Re: [PATCH 12/19] md: use __register_blkdev to allocate devices on demand

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Subject: Re: [PATCH 12/19] md: use __register_blkdev to allocate devices on demand
From: Song Liu <song@xxxxxxxxxx>
Date: Fri, 28 Aug 2020 00:08:11 -0700
Cc: Jens Axboe <axboe@xxxxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, "Rafael J. Wysocki" <rafael@xxxxxxxxxx>, Denis Efremov <efremov@xxxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxxxxx>, Al Viro <viro@xxxxxxxxxxxxxxxxxx>, linux-block@xxxxxxxxxxxxxxx, open list <linux-kernel@xxxxxxxxxxxxxxx>, linux-ide@xxxxxxxxxxxxxxx, linux-raid <linux-raid@xxxxxxxxxxxxxxx>, linux-scsi@xxxxxxxxxxxxxxx, linux-m68k@xxxxxxxxxxxxxxx
In-reply-to: <20200826062446.31860-13-hch@lst.de>
References: <20200826062446.31860-1-hch@lst.de> <20200826062446.31860-13-hch@lst.de>

On Tue, Aug 25, 2020 at 11:53 PM Christoph Hellwig <hch@xxxxxx> wrote:


Use the simpler mechanism attached to major_name to allocate a brd device
when a currently unregistered minor is accessed.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>


Acked-by: Song Liu <song@xxxxxxxxxx>

References:
- simplify gendisk lookup and remove struct block_device aliases
  - From: Christoph Hellwig
- [PATCH 12/19] md: use __register_blkdev to allocate devices on demand
  - From: Christoph Hellwig

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