Re: [PATCH 17/24] dm-snap: simplify the origin_dev == cow_dev check in snapshot_ctr

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To: Christoph Hellwig <hch@xxxxxx>
Subject: Re: [PATCH 17/24] dm-snap: simplify the origin_dev == cow_dev check in snapshot_ctr
From: Mike Snitzer <snitzer@xxxxxxxxxx>
Date: Tue, 23 May 2023 12:56:00 -0400
Cc: Jens Axboe <axboe@xxxxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, "Rafael J. Wysocki" <rafael@xxxxxxxxxx>, Joern Engel <joern@xxxxxxxxxxxxxxx>, Miquel Raynal <miquel.raynal@xxxxxxxxxxx>, Richard Weinberger <richard@xxxxxx>, Vignesh Raghavendra <vigneshr@xxxxxx>, Pavel Machek <pavel@xxxxxx>, dm-devel@xxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, linux-mtd@xxxxxxxxxxxxxxxxxxx, linux-pm@xxxxxxxxxxxxxxx
In-reply-to: <20230523074535.249802-18-hch@lst.de>
References: <20230523074535.249802-1-hch@lst.de> <20230523074535.249802-18-hch@lst.de>

On Tue, May 23 2023 at  3:45P -0400,
Christoph Hellwig <hch@xxxxxx> wrote:

> Use the block_device acquired in dm_get_device for the check instead
> of doing an extra lookup.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Reviewed-by: Mike Snitzer <snitzer@xxxxxxxxxx>

References:
- fix the name_to_dev_t mess
  - From: Christoph Hellwig
- [PATCH 17/24] dm-snap: simplify the origin_dev == cow_dev check in snapshot_ctr
  - From: Christoph Hellwig

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