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From: Christoph Hellwig <hch@lst.de>
To: Dmitriy Gorokh <degifted@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>,
	axboe@kernel.dk, linux-block@vger.kernel.org
Subject: Re: [PATCH] block: fix locking in bdev_del_partition
Date: Fri, 11 Sep 2020 16:58:37 +0200	[thread overview]
Message-ID: <20200911145837.GA22414@lst.de> (raw)
In-Reply-To: <CANYdAbJVvNB+5Kyqgu3aoh8ug6C2DVkys8JWrY-nQvtPLEgeOw@mail.gmail.com>

On Fri, Sep 11, 2020 at 05:56:42PM +0300, Dmitriy Gorokh wrote:
> Hi Christoph,
> 
> Unfortunately this fix (Upstream commit
> 08fc1ab6d748ab1a690fd483f41e2938984ce353) breaks compatibility with
> some userspace tools, specifically mdadm, who expect ENXIO errno as a
> result of BLKPG_DEL_PARTITION operation to test if the block device is
> a whole-disk or a partition. With the recent 5.8 kernel it now returns
> ENOMEM on an existing block device which seems inconsistent.

https://git.kernel.dk/cgit/linux-block/commit/?h=block-5.9&id=88ce2a530cc9865a894454b2e40eba5957a60e1a

  reply	other threads:[~2020-09-11 17:13 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-11 14:56 [PATCH] block: fix locking in bdev_del_partition Dmitriy Gorokh
2020-09-11 14:58 ` Christoph Hellwig [this message]
  -- strict thread matches above, loose matches on Subject: below --
2020-09-01  9:59 Christoph Hellwig
2020-09-01 14:35 ` Jens Axboe

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