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,URIBL_BLOCKED,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 D0E00C433E0 for ; Fri, 24 Jul 2020 21:55:07 +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 9E0F02070E for ; Fri, 24 Jul 2020 21:55:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="u5XH+nIU" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9E0F02070E 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=VLyvf/zt42ohcVQs5sZVCiiUy1hUQQspYrvbtEylyPE=; b=u5XH+nIUKEUzOjIPtJeY9JpKP/ j1CKS1IdVFIAz6ly0TLYR8Q2EvnWpSEBHrIuPt3RaAwD62R0tA9Pgx82sRAln9iDMXMgd//xhkaHL 8PNRnFF/g61Xjs9gyr8+8MFeyP6awTU4rFqvs37e0lhIYcOLtSK8VOG/AQQ18pLxKn6D9Vr8O/Njy ldck2Bt6/vLPz4zf+lpqGxDDo+D097lfrNLnPyO/l2jtWHlbmTEM0RPOF806uoiBMn4V1lJMcYM92 koXdb/zcBFOimrs95QrKadHol8ryRixhBxyS5AxbOHtled4JDFUs2Ga6709ZHs/+EaOHiHh59LWTu 1Snjn8rQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jz5ec-0003Pd-Q1; Fri, 24 Jul 2020 21:54:58 +0000 Received: from mail-pf1-f194.google.com ([209.85.210.194]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jz5eZ-0003PH-Ns for linux-nvme@lists.infradead.org; Fri, 24 Jul 2020 21:54:56 +0000 Received: by mail-pf1-f194.google.com with SMTP id w126so5838310pfw.8 for ; Fri, 24 Jul 2020 14:54:55 -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=t15taSB6K9sfXPu6uqHtGy3WZmNVaZpCeSZahDtKNTY=; b=j3CtIFh99OiZ5AZoz/bblbizSFN3iZyBdtNi2t6yzK3t5cGQoc7+E/KrawhIGo5WT0 e7AH9jCC6awEO/2BWOXdg3t8K5QzRy0RjOyBukFTIjXf5iRylBFas7Wddx4Wm2tUfktz QyL7ZXDcg1V1WfrKHdjn++Qsgk94JKeV3EImFR6xnCsufCaOy4Edg6S6EySD2V47KnJs CuF6pzqdk+5MxUzA9i9dY6+AqJDrUMazsGixb364KshpelWzmUy+vd+GC73FwvC8fYFQ QxUzf5bQOkQD6m1I5Odn+y/BGbb58apM77OCMi6XmA9LmNCyIcWkr/dPaKCSctRGlr+9 wHiQ== X-Gm-Message-State: AOAM531NXybNxxRAonlqSl2N3d/PFCQakKiUxGUU0wiH/6Mrwj8WuBbl jPh/Gg437xpqQ3AKMF9v9lrrjkL4 X-Google-Smtp-Source: ABdhPJxrAD+Z1oDT+o4PRC7Aa0utwuo92Rjnti13GJFkqmr0TTqCUssd5kHeN3ZCgXowZL/eN5y5xg== X-Received: by 2002:a62:d103:: with SMTP id z3mr10121773pfg.317.1595627694189; Fri, 24 Jul 2020 14:54:54 -0700 (PDT) Received: from sagi-Latitude-7490.hsd1.ca.comcast.net ([2601:647:4802:9070:ac47:9fc4:b59:66fa]) by smtp.gmail.com with ESMTPSA id 144sm7565112pfb.31.2020.07.24.14.54.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Jul 2020 14:54:53 -0700 (PDT) From: Sagi Grimberg To: linux-nvme@lists.infradead.org, Christoph Hellwig , Keith Busch Subject: [PATCH rfc 0/4] improve quiesce time for large amount of namespaces Date: Fri, 24 Jul 2020 14:54:48 -0700 Message-Id: <20200724215452.26401-1-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-20200724_175455_821178_46F5B063 X-CRM114-Status: UNSURE ( 8.87 ) X-CRM114-Notice: Please train this message. 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: Jens Axboe , 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 attempts to improve 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 (e.g. pci, fc, rdma) and blocking hctxs (e.g. tcp). The original patch from Chao was targeted to rdma, hence Patch #4 is just for testing purposes in case testing with nvme-tcp is an issue. Chao Leng (1): nvme-core: reduce io failover time Sagi Grimberg (3): blk-mq: add async quiesce interface for blocking hw queues nvme: improve quiesce for blocking queues nvme-rdma: use blocking quiesce interface block/blk-mq.c | 31 +++++++++++++++++++++++++++++++ drivers/nvme/host/core.c | 20 +++++++++++++++++++- drivers/nvme/host/nvme.h | 1 + drivers/nvme/host/rdma.c | 5 +++-- drivers/nvme/host/tcp.c | 1 + include/linux/blk-mq.h | 4 ++++ 6 files changed, 59 insertions(+), 3 deletions(-) -- 2.25.1 _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme