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=-3.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 0BFE3C433E2 for ; Fri, 11 Sep 2020 02:41:47 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 947132076C for ; Fri, 11 Sep 2020 02:41:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="q7KrXsed"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="VzyUSJUp" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 947132076C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=AaelVsEML/CGX/e1Nhbo9L0xG+6S96VK5JacJN/RA74=; b=q7KrXsedVk2j6JZj0dOoGiIZq+ +NOqXqNjFMnCLCAKjZiUSsOKHo/GIDhrLHMd90ThKAb0PU2LyYjNIYJaZGfkLSZActD+Xu/sUNysd 4fIKl+yw3ovSflqh+I3ku24H1RiIibQMYPtEtTOwA6mYthOszx8xIZS2UWcD9MzqTTu7YC+qohp4r il3UG+/vTCNhWBHxnT8ShqzpxsnzVs4p+Jhguc8ux2RsKST0R3UJNMAZTYG0v1u62RFawiuiqeVI3 M4hQmE+emZrLDbzbjMWQDt2NxAyZNs1hcguAVK6T9s7XN2ubSRUykzGb2YGRul5NWpHDsPeJAylyp f9uV4FyQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kGZ0Q-0007GQ-9A; Fri, 11 Sep 2020 02:41:42 +0000 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120] helo=us-smtp-1.mimecast.com) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kGZ0N-0007FO-If for linux-nvme@lists.infradead.org; Fri, 11 Sep 2020 02:41:40 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1599792096; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=bVVS/8jxO4+7B26dWJY61L8dhrjgBeOPArvoEpC97D0=; b=VzyUSJUpQLHGsGGMxreXsOCN0ZT2/IfA+HGo/+vA/3Ivf08dWbMP0AxgfdOSAxSe9bLA1L GtIsSzfBNr905xnJ1yF0afLxl2SAiTBROY2aDDbGG2srHJmxNvEPgEFMb5WeRn9wzdgznT A/uhpdG7AZU5YaEvK0jfNUBlki7ivaA= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-180-eKgi8pfHPDm1139Bc8xNUw-1; Thu, 10 Sep 2020 22:41:32 -0400 X-MC-Unique: eKgi8pfHPDm1139Bc8xNUw-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 951918030DD; Fri, 11 Sep 2020 02:41:30 +0000 (UTC) Received: from localhost (ovpn-13-69.pek2.redhat.com [10.72.13.69]) by smtp.corp.redhat.com (Postfix) with ESMTP id 739B15D9CA; Fri, 11 Sep 2020 02:41:24 +0000 (UTC) From: Ming Lei To: Jens Axboe , linux-block@vger.kernel.org, linux-nvme@lists.infradead.org, Christoph Hellwig , Keith Busch Subject: [PATCH V5 0/4] blk-mq: implement queue quiesce via percpu_ref for BLK_MQ_F_BLOCKING Date: Fri, 11 Sep 2020 10:41:13 +0800 Message-Id: <20200911024117.62480-1-ming.lei@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200910_224139_640493_B329AD3D X-CRM114-Status: GOOD ( 12.99 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sagi Grimberg , Johannes Thumshirn , Ming Lei , Hannes Reinecke , Chao Leng , Bart Van Assche Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org Hi Jens, The 1st patch add .mq_quiesce_mutex for serializing quiesce/unquiesce, and prepares for replacing srcu with percpu_ref. The 2nd patch replaces srcu with percpu_ref. The 3rd patch adds tagset quiesce interface. The 4th patch applies tagset quiesce interface for NVMe subsystem. V5: - warn once in case that driver unquiesces its queue being quiesce and not done, only patch 2 is modified V4: - remove .mq_quiesce_mutex, and switch to test_and_[set|clear] for avoiding duplicated quiesce action - pass blktests(block, nvme) V3: - add tagset quiesce interface - apply tagset quiesce interface for NVMe - pass blktests(block, nvme) V2: - add .mq_quiesce_lock - add comment on patch 2 wrt. handling hctx_lock() failure - trivial patch style change Ming Lei (3): block: use test_and_{clear|test}_bit to set/clear QUEUE_FLAG_QUIESCED blk-mq: implement queue quiesce via percpu_ref for BLK_MQ_F_BLOCKING blk-mq: add tagset quiesce interface Sagi Grimberg (1): nvme: use blk_mq_[un]quiesce_tagset block/blk-core.c | 13 +++ block/blk-mq-sysfs.c | 2 - block/blk-mq.c | 182 +++++++++++++++++++++++++-------------- block/blk-sysfs.c | 6 +- block/blk.h | 2 + drivers/nvme/host/core.c | 19 ++-- include/linux/blk-mq.h | 10 +-- include/linux/blkdev.h | 4 + 8 files changed, 154 insertions(+), 84 deletions(-) Cc: Hannes Reinecke Cc: Sagi Grimberg Cc: Bart Van Assche Cc: Johannes Thumshirn Cc: Chao Leng -- 2.25.2 _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme