linux-kernel - Re: [PATCH] scsi: hisi_sas: Select a suitable queue for internal IOs

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Message-Id: <160740334901.1739.7752701168354918221.b4-ty@oracle.com>
Date:   Mon,  7 Dec 2020 23:55:59 -0500
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     jejb@...ux.ibm.com, John Garry <john.garry@...wei.com>
Cc:     "Martin K . Petersen" <martin.petersen@...cle.com>,
        linuxarm@...wei.com, hare@...e.de, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Xiang Chen <chenxiang66@...ilicon.com>
Subject: Re: [PATCH] scsi: hisi_sas: Select a suitable queue for internal IOs

On Mon, 7 Dec 2020 21:30:55 +0800, John Garry wrote:

> For when managed interrupts are used (and shost->nr_hw_queues is set), a
> fixed queue - set per-device - is still used for internal IOs.
> 
> If all the CPUs mapped to that queue are offlined, then the completions
> for that queue are not serviced and any internal IOs will timeout.
> 
> Fix by selecting a queue for internal IOs from the queue mapped from
> the current CPU in this scenario.
> 
> [...]

Applied to 5.10/scsi-fixes, thanks!

[1/1] scsi: hisi_sas: Select a suitable queue for internal IOs
      https://git.kernel.org/mkp/scsi/c/359db63378ed

-- 
Martin K. Petersen	Oracle Linux Engineering