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From: Christoph Hellwig <hch@lst.de>
To: axboe@kernel.dk
Cc: Gulam Mohamed <gulam.mohamed@oracle.com>,
	Ming Lei <ming.lei@redhat.com>,
	linux-block@vger.kernel.org
Subject: Re: fix a race between del_gendisk and BLKRRPART v2
Date: Thu, 20 May 2021 10:14:46 +0200	[thread overview]
Message-ID: <20210520081446.GA30422@lst.de> (raw)
In-Reply-To: <20210514131842.1600568-1-hch@lst.de>

Jens,

can you take a look at these?

On Fri, May 14, 2021 at 03:18:40PM +0200, Christoph Hellwig wrote:
> Hi all,
> 
> this is based of a patch from Gulam and suggestions from Ming and fixes a
> race between del_gendisk and BLKRRPART while also removing a global lock.
> 
> Changes since v1:
>  - fix the GENHD_FL_UP check in __blkdev_get
>  - don't change where remove_inode_hash is called for now
>  - improve the commit message
> 
> Diffstat:
>  block/genhd.c         |   11 +----------
>  fs/block_dev.c        |   18 ++++++++----------
>  include/linux/genhd.h |    2 --
>  3 files changed, 9 insertions(+), 22 deletions(-)
---end quoted text---

  parent reply	other threads:[~2021-05-20  8:14 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-14 13:18 fix a race between del_gendisk and BLKRRPART v2 Christoph Hellwig
2021-05-14 13:18 ` [PATCH 1/2] block: prevent block device lookups at the beginning of del_gendisk Christoph Hellwig
2021-05-15  6:34   ` Ming Lei
2021-05-20 17:37     ` Gulam Mohamed
2021-05-14 13:18 ` [PATCH 2/2] block: fix a race between del_gendisk and BLKRRPART Christoph Hellwig
2021-05-15  6:35   ` Ming Lei
2021-05-20 17:37     ` Gulam Mohamed
2021-05-20  8:14 ` Christoph Hellwig [this message]
2021-05-20 13:59   ` fix a race between del_gendisk and BLKRRPART v2 Jens Axboe

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