Re: [PATCH 5/8] btrfs: no need to grab a reference to disk->part0

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To: Christoph Hellwig <hch@xxxxxx>
Subject: Re: [PATCH 5/8] btrfs: no need to grab a reference to disk->part0
From: David Sterba <dsterba@xxxxxxx>
Date: Wed, 21 Jul 2021 18:15:20 +0200
Cc: Jens Axboe <axboe@xxxxxxxxx>, Josef Bacik <josef@xxxxxxxxxxxxxx>, David Sterba <dsterba@xxxxxxxx>, linux-block@xxxxxxxxxxxxxxx, linux-btrfs@xxxxxxxxxxxxxxx
In-reply-to: <20210721153523.103818-6-hch@lst.de>
Mail-followup-to: dsterba@xxxxxxx, Christoph Hellwig <hch@xxxxxx>, Jens Axboe <axboe@xxxxxxxxx>, Josef Bacik <josef@xxxxxxxxxxxxxx>, David Sterba <dsterba@xxxxxxxx>, linux-block@xxxxxxxxxxxxxxx, linux-btrfs@xxxxxxxxxxxxxxx
References: <20210721153523.103818-1-hch@lst.de> <20210721153523.103818-6-hch@lst.de>
Reply-to: dsterba@xxxxxxx
User-agent: Mutt/1.5.23.1-rc1 (2014-03-12)

On Wed, Jul 21, 2021 at 05:35:20PM +0200, Christoph Hellwig wrote:
> The struct block_device for the whole disk will not be freed while
> the disk in use, so don't bother to grab a reference to it.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Acked-by: David Sterba <dsterba@xxxxxxxx>

References:
- fixes and cleanups for block_device refcounting
  - From: Christoph Hellwig
- [PATCH 5/8] btrfs: no need to grab a reference to disk->part0
  - From: Christoph Hellwig

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