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From: Christoph Hellwig <hch@lst.de>
To: Yu Kuai <yukuai1@huaweicloud.com>
Cc: Jens Axboe <axboe@kernel.dk>,
	linux-block@vger.kernel.org, dm-devel@redhat.com,
	Christoph Hellwig <hch@lst.de>, Mike Snitzer <snitzer@redhat.com>
Subject: Re: [dm-devel] [PATCH 7/8] dm: delay registering the gendisk
Date: Thu, 7 Jul 2022 07:24:25 +0200	[thread overview]
Message-ID: <20220707052425.GA13016@lst.de> (raw)
In-Reply-To: <ad2c7878-dabb-cb41-1bba-60ef48fa1a9f@huaweicloud.com>

On Thu, Jul 07, 2022 at 11:29:26AM +0800, Yu Kuai wrote:
> We found that this patch fix a nullptr crash in our test:

> Do you think it's ok to backport this patch(and all realted patches) to
> lts, or it's better to fix that bio can be submitted with queue
> uninitialized from block layer?

Given how long ago this was I do not remember offhand how much prep
work this would require.  The patch itself is of course tiny and
backportable, but someone will need to do the work and figure out how
much else would have to be backported.

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  reply	other threads:[~2022-07-07  5:24 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-04  9:41 [dm-devel] use regular gendisk registration in device mapper v2 Christoph Hellwig
2021-08-04  9:41 ` [dm-devel] [PATCH 1/8] block: make the block holder code optional Christoph Hellwig
2021-08-04  9:41 ` [dm-devel] [PATCH 2/8] block: remove the extra kobject reference in bd_link_disk_holder Christoph Hellwig
2021-08-04  9:41 ` [dm-devel] [PATCH 3/8] block: look up holders by bdev Christoph Hellwig
2021-08-04  9:41 ` [dm-devel] [PATCH 4/8] block: support delayed holder registration Christoph Hellwig
     [not found]   ` <CGME20210810213058eucas1p109323e3c3ecaa76d37d8cf63b6d8ecfd@eucas1p1.samsung.com>
2021-08-10 21:30     ` Marek Szyprowski
2021-08-14 21:13   ` Guenter Roeck
2021-08-15  7:07     ` Christoph Hellwig
2021-08-15 14:27       ` Guenter Roeck
2021-08-16  7:21         ` Christoph Hellwig
2021-08-16 14:17           ` Guenter Roeck
2021-08-20 15:08             ` Christoph Hellwig
2021-08-21  3:17               ` Guenter Roeck
2021-08-18  2:51           ` Guenter Roeck
2021-08-04  9:41 ` [dm-devel] [PATCH 5/8] dm: cleanup cleanup_mapped_device Christoph Hellwig
2021-08-04  9:41 ` [dm-devel] [PATCH 6/8] dm: move setting md->type into dm_setup_md_queue Christoph Hellwig
2021-08-04  9:41 ` [dm-devel] [PATCH 7/8] dm: delay registering the gendisk Christoph Hellwig
2021-08-09 23:31   ` Alasdair G Kergon
2021-08-10  0:17     ` Alasdair G Kergon
2021-08-10 13:12     ` Peter Rajnoha
2021-08-10 15:05       ` Alasdair G Kergon
2022-07-07  3:29   ` Yu Kuai
2022-07-07  5:24     ` Christoph Hellwig [this message]
2022-07-07  7:20       ` Yu Kuai
2022-07-15  3:24         ` Yu Kuai
2022-08-01  1:04           ` Yu Kuai
2021-08-04  9:41 ` [dm-devel] [PATCH 8/8] block: remove support for delayed queue registrations Christoph Hellwig
2021-08-09 17:51 ` [dm-devel] use regular gendisk registration in device mapper v2 Jens Axboe
2021-08-10  0:36 ` Alasdair G Kergon
2021-08-10 14:41   ` Alasdair G Kergon
2021-08-19 15:58 ` [dm-devel] holders not working properly, regression [was: Re: use regular gendisk registration in device mapper v2] Mike Snitzer
2021-08-19 18:05   ` Christoph Hellwig
2021-08-19 22:08     ` Mike Snitzer
  -- strict thread matches above, loose matches on Subject: below --
2021-07-25  5:54 [dm-devel] use regular gendisk registration in device mapper Christoph Hellwig
2021-07-25  5:54 ` [dm-devel] [PATCH 7/8] dm: delay registering the gendisk Christoph Hellwig
2021-07-29 16:36   ` Mike Snitzer

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