linux-kernel - Re: [PATCH v2] scsi: storvsc: Remove WQ_MEM_RECLAIM from storvsc_error

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Message-ID: <yq1lerukxjs.fsf@ca-mkp.ca.oracle.com>
Date:   Thu, 11 Aug 2022 22:25:52 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Saurabh Sengar <ssengar@...ux.microsoft.com>
Cc:     kys@...rosoft.com, haiyangz@...rosoft.com, sthemmin@...rosoft.com,
        wei.liu@...nel.org, decui@...rosoft.com, jejb@...ux.ibm.com,
        martin.petersen@...cle.com, linux-hyperv@...r.kernel.org,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        ssengar@...rosoft.com, mikelley@...rosoft.com
Subject: Re: [PATCH v2] scsi: storvsc: Remove WQ_MEM_RECLAIM from
 storvsc_error_wq


Saurabh,

> storvsc_error_wq workqueue should not be marked as WQ_MEM_RECLAIM
> as it doesn't need to make forward progress under memory pressure.
> Marking this workqueue as WQ_MEM_RECLAIM may cause deadlock while
> flushing a non-WQ_MEM_RECLAIM workqueue.

Applied to 5.20/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering