From patchwork Mon Mar 25 05:38:36 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "jianchao.wang" X-Patchwork-Id: 10867893 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9400B13B5 for ; Mon, 25 Mar 2019 05:47:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 737C9291BC for ; Mon, 25 Mar 2019 05:47:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 64AD7291C1; Mon, 25 Mar 2019 05:47:54 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3F845291BC for ; Mon, 25 Mar 2019 05:47:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729471AbfCYFrq (ORCPT ); Mon, 25 Mar 2019 01:47:46 -0400 Received: from aserp2130.oracle.com ([141.146.126.79]:57802 "EHLO aserp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726166AbfCYFrp (ORCPT ); Mon, 25 Mar 2019 01:47:45 -0400 Received: from pps.filterd (aserp2130.oracle.com [127.0.0.1]) by aserp2130.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x2P5iMEW004246; Mon, 25 Mar 2019 05:47:20 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=corp-2018-07-02; bh=ss1t3DJAWRqtk33Piyd+aeKtdRJeAop5F6RCCUL08C8=; b=DA2ifDZNV8rFkr9Zy5rlLdWnEfOUnqCRCXzXy0bz7tmZChch6/Dvgi0Z4hcB2LCV/+y5 sXT7eZWe+JTd7J75sCy+q5xPpyNlLylzPszfJjpNGOzQYDWjEWbdGIWf7SDQAydBK0MG s3Xmbm6geuNRm0zIHY1sGPksKdKy1rTLwqOfMBYrzmUPE0+ZKP5ed9tq40u1TtDiJpzc qQTtiW1HiBwuWawpf4LhChaMUzyu24tIX1x5DCYgVWxa6Tc+w027ZpAHH02I8y0VmvZo ucVKSlWbFFqo4gxsBptYOR3tkVx3Xwyf8luwCPC9sdk3yK//z5BpT/T7VYqb4rFQwG8G PQ== Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp2130.oracle.com with ESMTP id 2re6g0ht0h-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 25 Mar 2019 05:47:20 +0000 Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserv0022.oracle.com (8.14.4/8.14.4) with ESMTP id x2P5lJ45012747 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 25 Mar 2019 05:47:20 GMT Received: from abhmp0001.oracle.com (abhmp0001.oracle.com [141.146.116.7]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id x2P5lJ2u031755; Mon, 25 Mar 2019 05:47:19 GMT Received: from will-ThinkCentre-M93p.cn.oracle.com (/10.182.71.12) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sun, 24 Mar 2019 22:47:18 -0700 From: Jianchao Wang To: axboe@kernel.dk Cc: hch@lst.de, jthumshirn@suse.de, hare@suse.de, josef@toxicpanda.com, bvanassche@acm.org, sagi@grimberg.me, keith.busch@intel.com, jsmart2021@gmail.com, linux-block@vger.kernel.org, linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH V2 6/8] skd: use blk_mq_queue_tag_inflight_iter Date: Mon, 25 Mar 2019 13:38:36 +0800 Message-Id: <1553492318-1810-7-git-send-email-jianchao.w.wang@oracle.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1553492318-1810-1-git-send-email-jianchao.w.wang@oracle.com> References: <1553492318-1810-1-git-send-email-jianchao.w.wang@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9205 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1903250044 Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP blk_mq_tagset_busy_iter is not safe that it could get stale request in tags->rqs[]. Use blk_mq_queue_tag_inflight_iter here. Signed-off-by: Jianchao Wang --- drivers/block/skd_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c index 7d3ad6c..0213b19 100644 --- a/drivers/block/skd_main.c +++ b/drivers/block/skd_main.c @@ -395,7 +395,7 @@ static int skd_in_flight(struct skd_device *skdev) { int count = 0; - blk_mq_tagset_busy_iter(&skdev->tag_set, skd_inc_in_flight, &count); + blk_mq_queue_tag_inflight_iter(skdev->queue, skd_inc_in_flight, &count); return count; } @@ -1916,7 +1916,7 @@ static bool skd_recover_request(struct request *req, void *data, bool reserved) static void skd_recover_requests(struct skd_device *skdev) { - blk_mq_tagset_busy_iter(&skdev->tag_set, skd_recover_request, skdev); + blk_mq_queue_tag_inflight_iter(skdev->queue, skd_recover_request, skdev); } static void skd_isr_msg_from_dev(struct skd_device *skdev)