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=-7.0 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,USER_AGENT_GIT 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 8FC63C433E5 for ; Mon, 27 Jul 2020 23:10:37 +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 565A920729 for ; Mon, 27 Jul 2020 23:10:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="bQpFHANT" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 565A920729 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=grimberg.me 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=G6/ZPKtmn2mzDfaTwXfoQF4S9CSQEIGw4TNvU/QU66U=; b=bQpFHANTObGjVv+tz9gB0WKvIT o1x4lzPQU5ni1jhBvYXHgCs48Ih7iHZMpOOaMaqzpvUE2JdPnBPf65QJCyxL53MrLLecHGqMg3reH H3ovzE8TCg37J/TRYg8V0lagGZt4qlLiSlAsTmjJxVrarUKbfjuH4huuB2gokewCoJSsUUh6Vfq+V kQ2+8JLzj18SYdH3w5qK/1MkOf3W/DNeu3bQ8a2kSDsu81yEL96BI2g7k3HMyKlDoC5xXNyakCo18 ixsFR0engmnE1wbCiAJWmg5CNgSdr84aj6pCeddpW/ghh2fTyYu1Vitf3Wx+qQPhmXXSd78eO+alL YeMfPGvg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k0CGK-0006Cn-VS; Mon, 27 Jul 2020 23:10:28 +0000 Received: from mail-pl1-f195.google.com ([209.85.214.195]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1k0CGJ-0006CC-5D for linux-nvme@lists.infradead.org; Mon, 27 Jul 2020 23:10:28 +0000 Received: by mail-pl1-f195.google.com with SMTP id k13so1135288plk.13 for ; Mon, 27 Jul 2020 16:10:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=s7HvE7cCk+QXElSFNz6NUM8zZE/EqHMoDCQdYPstf08=; b=IxWuTl1aLJQGckIjGkBstoJCgluXeP0fEPYebcgxNb3ERW+olf+NxBIDD/Dn81jndJ OuLFBOJIlKxQkwLVIkkHpomSDQYLNHgeOJVXXfyXtI504MpaLpwW8un3xvZP0WFBQM9b dkDLTQBiKd+PHW/TO0I699ZAu3EWAvv4okG2H+1HukgowEtieO588BPqhAH/0R8HNNpC KCpWMeq+AtplS+E8a/RbHZndoXLgyzz7Ns7rCLeVK1ig4hkA7M1pqzUURSMJbe3vHi/z +1iFvyj7mkcyTUIPODPZ1Fs33L2jWetltHG9o8JniCL+NDsJklfEjiNEKK51mzRBJVvy VQeQ== X-Gm-Message-State: AOAM533zdpXCAdktSVzXM5asxhXbLmgYYvCh2HbiEEBVRtSu+LjkwAsI hAkrN/arLtEIQlBmRBL/YOOURcF1 X-Google-Smtp-Source: ABdhPJx7LHZGg8iU5uE+1Tv25WzLucK/Z41popy2MTwXO+9/xIZXLSbghsX29tkbwFA4+eDsITraiw== X-Received: by 2002:a17:902:7b85:: with SMTP id w5mr20109833pll.22.1595891425539; Mon, 27 Jul 2020 16:10:25 -0700 (PDT) Received: from sagi-Latitude-7490.hsd1.ca.comcast.net ([2601:647:4802:9070:5d7d:f206:b163:f30b]) by smtp.gmail.com with ESMTPSA id z190sm7407171pfz.67.2020.07.27.16.10.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Jul 2020 16:10:24 -0700 (PDT) From: Sagi Grimberg To: linux-nvme@lists.infradead.org, Christoph Hellwig , Keith Busch , Jens Axboe Subject: [PATCH v5 0/2] improve nvme quiesce time for large amount of namespaces Date: Mon, 27 Jul 2020 16:10:20 -0700 Message-Id: <20200727231022.307602-1-sagi@grimberg.me> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200727_191027_258062_6BC20413 X-CRM114-Status: GOOD ( 12.60 ) 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: linux-block@vger.kernel.org, Ming Lin , Chao Leng 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 This set improves the quiesce time when using a large set of namespaces, which also improves I/O failover time in a multipath environment. We improve for both non-blocking hctxs and blocking hctxs introducing blk_mq_[un]quiesce_tagset which works on all request queues over a given tagset in parallel (which is the case in nvme) for both tagset types (blocking and non-blocking); Changes from v4: - introduce blk_mq_[un]quiesce_tagset as one interface - move nvme core to use this interface Changes from v3: - make hctx->rcu_sync dynamically allocated from the heap instead of a static member function Changes from v2: - made blk_mq_quiesce_queue_async operate on both blocking and non-blocking hctxs. - removed separation between blocking vs. non-blocking queues - dropeed patch from Chao - dropped nvme-rdma test patch Changes from v1: - trivial typo fixes *** SUBJECT HERE *** *** BLURB HERE *** Sagi Grimberg (2): blk-mq: add tagset quiesce interface nvme: use blk_mq_[un]quiesce_tagset block/blk-mq.c | 66 ++++++++++++++++++++++++++++++++++++++++ drivers/nvme/host/core.c | 14 ++------- include/linux/blk-mq.h | 4 +++ 3 files changed, 72 insertions(+), 12 deletions(-) -- 2.25.1 _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme