From: Jens Axboe <axboe@kernel.dk>
To: Ming Lei <ming.lei@redhat.com>
Cc: linux-block@vger.kernel.org, Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH] block: don't protect submit_bio_checks by q_usage_counter
Date: Sun, 09 Jan 2022 18:59:35 -0700 [thread overview]
Message-ID: <164177997579.87082.6682898488605311594.b4-ty@kernel.dk> (raw)
In-Reply-To: <20220104134223.590803-1-ming.lei@redhat.com>
On Tue, 4 Jan 2022 21:42:23 +0800, Ming Lei wrote:
> Commit cc9c884dd7f4 ("block: call submit_bio_checks under q_usage_counter")
> uses q_usage_counter to protect submit_bio_checks for avoiding IO after
> disk is deleted by del_gendisk().
>
> Turns out the protection isn't necessary, because once
> blk_mq_freeze_queue_wait() in del_gendisk() returns:
>
> [...]
Applied, thanks!
[1/1] block: don't protect submit_bio_checks by q_usage_counter
commit: 9d497e2941c30a060ba62d5485b3bc9d91ffb09e
Best regards,
--
Jens Axboe
next prev parent reply other threads:[~2022-01-10 1:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-04 13:42 [PATCH] block: don't protect submit_bio_checks by q_usage_counter Ming Lei
2022-01-10 0:05 ` Ming Lei
2022-01-10 1:56 ` Jens Axboe
2022-01-10 1:59 ` Jens Axboe [this message]
2022-01-10 16:49 ` Christoph Hellwig
2022-01-11 1:16 ` Ming Lei
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