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

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Message-ID: <ZGzwIGPfRggsU0Ek@redhat.com>
Date:   Tue, 23 May 2023 12:56:00 -0400
From:   Mike Snitzer <snitzer@...nel.org>
To:     Christoph Hellwig <hch@....de>
Cc:     Jens Axboe <axboe@...nel.dk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Joern Engel <joern@...ybastard.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Pavel Machek <pavel@....cz>, dm-devel@...hat.com,
        linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        linux-mtd@...ts.infradead.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH 17/24] dm-snap: simplify the origin_dev == cow_dev check
 in snapshot_ctr

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

Reviewed-by: Mike Snitzer <snitzer@...nel.org>