linux-kernel - Re: [PATCH] ipr: Fix scsi-mq lockdep issue

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Message-ID: <yq18tiv9swt.fsf@oracle.com>
Date:   Mon, 07 Aug 2017 13:41:54 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Brian King <brking@...ux.vnet.ibm.com>
Cc:     linux-scsi <linux-scsi@...r.kernel.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Jens Axboe <axboe@...nel.dk>,
        "linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-block\@vger.kernel.org" <linux-block@...r.kernel.org>,
        Bart Van Assche <Bart.VanAssche@....com>,
        "linuxppc-dev\@lists.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>,
        Wendy Xiong <wenxiong@...ux.vnet.ibm.com>
Subject: Re: [PATCH] ipr: Fix scsi-mq lockdep issue


Brian,

> Fixes the following lockdep warning that can occur when scsi-mq is
> enabled with ipr due to ipr calling scsi_unblock_requests from irq
> context. The fix is to move the call to scsi_unblock_requests to ipr's
> existing workqueue.

Applied to 4.13/scsi-fixes. Thank you!

-- 
Martin K. Petersen	Oracle Linux Engineering