From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 55ED3C67879 for ; Tue, 9 Oct 2018 01:41:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0AA4F2075E for ; Tue, 9 Oct 2018 01:41:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="C+bAB/5b" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0AA4F2075E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=oracle.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726780AbeJII4A (ORCPT ); Tue, 9 Oct 2018 04:56:00 -0400 Received: from userp2130.oracle.com ([156.151.31.86]:59216 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725887AbeJII4A (ORCPT ); Tue, 9 Oct 2018 04:56:00 -0400 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.22/8.16.0.22) with SMTP id w991XxfJ106968; Tue, 9 Oct 2018 01:41:25 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : to : cc : references : from : message-id : date : mime-version : in-reply-to : content-type : content-transfer-encoding; s=corp-2018-07-02; bh=d76BBHblQRrUEdNMiOAlrPU+71xLOchxUejClNFkOL0=; b=C+bAB/5bSSgpUWO0U4O75j1EqT6Cw/nEHotQ4INckL2iyjKrFjVr93RzQXFktSkuPoc7 XuOMHgbGoZwn/3p60moCaUuFBdG/yr5F/Py1FOi0WztjviqNncta9xQAp2EgHldlNyQU UWnaigFbN4Msd/MZA5mof+jCxfLGuyx8egJD1IaoBnlAjhW6T16I29cYbLYeVrdvNqgK NwfpOvmzstKcXHCRPUuzPR3GTCj3FrYXOwKBEPBmwl51rTp1iwIkkC5c95R2uoFWBPub BM8yAq50WEmQvR5teFxtKmmsCwEtMKJhnPPTCJWHAOxCFQr7jcymkHMMKqg4n08AAUt3 Qw== Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp2130.oracle.com with ESMTP id 2mxmftj5gt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 09 Oct 2018 01:41:25 +0000 Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0022.oracle.com (8.14.4/8.14.4) with ESMTP id w991fO1Y017611 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 9 Oct 2018 01:41:25 GMT Received: from abhmp0014.oracle.com (abhmp0014.oracle.com [141.146.116.20]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id w991fO4w015173; Tue, 9 Oct 2018 01:41:24 GMT Received: from [10.182.70.180] (/10.182.70.180) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 09 Oct 2018 01:41:24 +0000 Subject: Re: [PATCH 0/2] blk-mq: two fixes about updating hw queues To: axboe@kernel.dk Cc: keith.busch@linux.intel.com, ming.lei@redhat.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org References: <1538044984-2147-1-git-send-email-jianchao.w.wang@oracle.com> From: "jianchao.wang" Message-ID: <0bc3c8a1-484b-5fe5-a8af-17d09b0458fa@oracle.com> Date: Tue, 9 Oct 2018 09:41:49 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <1538044984-2147-1-git-send-email-jianchao.w.wang@oracle.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9040 signatures=668706 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=769 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1810090015 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Would anyone please take a look at this patch ? Thanks in advance Jianchao On 09/27/2018 06:43 PM, Jianchao Wang wrote: > Hi Jens > > This patch set fixes two defects during update hw queues. > > 1st patch refactor the blk-mq debugfs and sysfs register during > blk_mq_update_nr_hw_queues. > > 2nd patch should be able to fix the panic reported in follwing link > https://urldefense.proofpoint.com/v2/url?u=https-3A__marc.info_-3Fl-3Dlinux-2Dblock-26m-3D153799465603723-26w-3D2&d=DwIBAg&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=7WdAxUBeiTUTCy8v-7zXyr4qk7sx26ATvfo6QSTvZyQ&m=JoGIFiPF4RF8WH8rquW8Qswr2FYvPOVaTxlgmjKHsDk&s=TQn_KiIX2sfmXP_9IYy2IFFRxBj4jBKVaSSU-I1z9g8&e= > > Jianchao Wang (2) > blk-mq: adjust debugfs and sysfs register when updating nr_hw_queues > blk-mq: fallback to previous nr_hw_queues when updating fails > > block/blk-mq.c | 79 ++++++++++++++++++++++++++++++++++------------------------ > 1 file changed, 47 insertions(+), 32 deletions(-) > > Thanks > Jianchao >