Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752339AbdHGRmM (ORCPT ); Mon, 7 Aug 2017 13:42:12 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:37327 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752316AbdHGRmK (ORCPT ); Mon, 7 Aug 2017 13:42:10 -0400 To: Brian King Cc: linux-scsi , Michael Ellerman , Jens Axboe , "linux-kernel\@vger.kernel.org" , "linux-block\@vger.kernel.org" , Bart Van Assche , "linuxppc-dev\@lists.ozlabs.org" , "James E.J. Bottomley" , Wendy Xiong Subject: Re: [PATCH] ipr: Fix scsi-mq lockdep issue From: "Martin K. Petersen" Organization: Oracle Corporation References: <87a83qfosu.fsf@concordia.ellerman.id.au> <073ed79c-11ce-e86c-a905-91fd28675d47@kernel.dk> <1501166846.2516.1.camel@wdc.com> <5b85a365-faa1-3987-9b6b-270399c30686@kernel.dk> <87lgn9dqx3.fsf@concordia.ellerman.id.au> <92379297-9667-ae52-b05c-6c8a0ce4751c@kernel.dk> <5dcfe3ac-50c7-86a6-e571-fe5a1c1dc316@linux.vnet.ibm.com> <87379c6cfh.fsf@concordia.ellerman.id.au> <87a83ju6av.fsf@concordia.ellerman.id.au> <6d2bbcc8-3f4b-9b41-45b2-160f4817e439@linux.vnet.ibm.com> Date: Mon, 07 Aug 2017 13:41:54 -0400 In-Reply-To: <6d2bbcc8-3f4b-9b41-45b2-160f4817e439@linux.vnet.ibm.com> (Brian King's message of "Tue, 1 Aug 2017 10:21:30 -0500") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Source-IP: aserv0021.oracle.com [141.146.126.233] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 331 Lines: 12 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