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From: Ming Lei <ming.lei@redhat.com>
To: Tejun Heo <tj@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>,
	linux-block@vger.kernel.org, Yu Kuai <yukuai3@huawei.com>
Subject: Re: [PATCH 2/3] block: let blkcg_gq grab request queue's refcnt
Date: Wed, 23 Mar 2022 08:32:56 +0800	[thread overview]
Message-ID: <YjpquAY3l9qdOzmE@T590> (raw)
In-Reply-To: <Yjn9JBT02ZbSdRbb@slm.duckdns.org>

On Tue, Mar 22, 2022 at 06:45:24AM -1000, Tejun Heo wrote:
> On Tue, Mar 22, 2022 at 06:23:34PM +0800, Ming Lei wrote:
> > One solution is to delay 'blk_put_queue(blkg->q)' and 'kfree(blkg)'
> > into one work function by reusing blkg->async_bio_work as release_work.
> > 
> > I will prepare one patch for addressing the issue.
> 
> Ah, so, this is the report. Can you please include the backtrace and
> reference to the patch you posted?

OK.

Also I guess it has answered your question in another thread.

Thanks,
Ming


  reply	other threads:[~2022-03-23  0:33 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-18 13:01 [PATCH for-5.18 0/3] block: throttle related fixes Ming Lei
2022-03-18 13:01 ` [PATCH 1/3] block: avoid use-after-free on throttle data Ming Lei
2022-03-18 13:01 ` [PATCH 2/3] block: let blkcg_gq grab request queue's refcnt Ming Lei
2022-03-22  9:33   ` Christoph Hellwig
2022-03-22 10:23     ` Ming Lei
2022-03-22 16:45       ` Tejun Heo
2022-03-23  0:32         ` Ming Lei [this message]
2022-04-20  1:46   ` Williams, Dan J
2022-04-20  2:01     ` yukuai (C)
2022-04-20  2:20       ` Ming Lei
2022-04-20  3:40       ` Dan Williams
2022-03-18 13:01 ` [PATCH 3/3] block: cancel all throttled bios in del_gendisk() Ming Lei
2022-03-18 15:58 ` [PATCH for-5.18 0/3] block: throttle related fixes Jens Axboe

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