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From: Nirmoy Das <nirmoyd@nvidia.com>
To: Jens Axboe <axboe@kernel.dk>
Cc: <ming.lei@redhat.com>, <hare@suse.de>, <dwagner@suse.de>,
	<linux-block@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<stable@vger.kernel.org>
Subject: Re: [PATCH] blk-mq: clear stale inactive flag on hctx reuse
Date: Tue, 20 Oct 2026 16:43:22 +0200	[thread overview]
Message-ID: <50307a46-9e0a-4c38-be48-eee441b391a7@nvidia.com> (raw)
In-Reply-To: <179250720323.3338252.2582321707097985664.b4-ty@b4>


On 20.10.26 16:40, Jens Axboe wrote:
> On Tue, 20 Oct 2026 05:51:29 -0700, Nirmoy Das wrote:
>> When the last CPU mapped to an hctx goes offline,
>> blk_mq_hctx_notify_offline() sets BLK_MQ_S_INACTIVE. Updating the
>> number of hardware queues exits every hctx and parks it on
>> q->unused_hctx_list. A later update can reuse a parked hctx through
>> blk_mq_alloc_and_init_hctx(), at any queue index, and nothing clears
>> the flag.
>>
>> [...]
> Applied, thanks!
>
> [1/1] blk-mq: clear stale inactive flag on hctx reuse
>        commit: afc1de47a7ab607ae6403c4bfda36b0bf3cd342f
>
> Best regards,


Thanks, Jens.


      reply	other threads:[~2026-10-20 14:44 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-20 12:51 Nirmoy Das
2026-10-20 14:13 ` Bart Van Assche
2026-10-20 14:28   ` Nirmoy Das
2026-10-20 14:39   ` Jens Axboe
2026-10-20 14:40 ` Jens Axboe
2026-10-20 14:43   ` Nirmoy Das [this message]

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