From: Christoph Hellwig <hch@lst.de>
To: Ming Lei <ming.lei@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>,
axboe@kernel.dk, linux-block@vger.kernel.org
Subject: Re: [PATCH] blk-cgroup: delay calling blkcg_exit_disk until disk_release
Date: Thu, 9 Feb 2023 06:04:01 +0100 [thread overview]
Message-ID: <20230209050401.GA8235@lst.de> (raw)
In-Reply-To: <Y+Q0mp1cV3Ca6bAf@T590>
On Thu, Feb 09, 2023 at 07:47:38AM +0800, Ming Lei wrote:
> Another thing is that blkcg_init_disk() and blkcg_exit_disk() becomes
> asymmetrical with this patch. So alloc_disk() & add_disk(), del_disk() & put_disk()
> have to be done together. If it may be documented, this patch looks
> fine.
As in no add_disk is allowed after del_gendisk on the same disk?
It's been like that since basically forever. I agree that documenting
it probably doesn't hurt though - but that's separate from this fix.
next prev parent reply other threads:[~2023-02-09 5:04 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-08 6:35 [PATCH] blk-cgroup: delay calling blkcg_exit_disk until disk_release Christoph Hellwig
2023-02-08 7:38 ` Ming Lei
2023-02-08 15:12 ` Christoph Hellwig
2023-02-08 23:47 ` Ming Lei
2023-02-09 5:04 ` Christoph Hellwig [this message]
2023-02-09 8:56 ` Ming Lei
2023-02-09 15:12 ` Jens Axboe
2023-02-10 5:05 ` Ming Lei
2023-02-13 8:37 ` Ming Lei
2023-02-13 8:42 ` Christoph Hellwig
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