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=-5.9 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_SANE_1 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 0929BC433B4 for ; Thu, 6 May 2021 12:09:37 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 494F8613D6 for ; Thu, 6 May 2021 12:09:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 494F8613D6 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de 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=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=QVJwz9W/h6bUzurEZy9LaszlFusfYp0WnmstNR1+skE=; b=B09QYBWDjJCtEXISluNU/l6kP +ZpTknsf0ft+Nc5noWb9q9upfEXRSURFkGOKCnwrbNGogyuNBkiAHcOPL45EWSCwGX3xEqD8qRgl7 GoTM5cABAxFnacvDNwXW4q6+d3vBDEN70Dgn5R+3zvEmcCrTrFxd/SR9PbAG5W4UZWLoxoGqa6q2K V5uav1KBrQ0ifQ3FCJsMc1R+hyg0tUz3UT8JRENcDLvtVGb5V6QjLK9J7zB6jC1fu7PO4j7Jcjwjz TWvKY2fgv/oRkZDFnfFC3hR0FtmY4egUd6SToMyZBdILl6pfSRG9+//MR7zJLuhVPiS+lC6K6JZMb WiFeYz/ow==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lecoR-004Cri-Di; Thu, 06 May 2021 12:09:03 +0000 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lecoO-004CrO-7L for linux-nvme@desiato.infradead.org; Thu, 06 May 2021 12:09:00 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=O5UtaaO2wH1go45Jtof9m2m/Rf2wXiEEXh/hT4l+g8U=; b=leI4lUSHqR3J/VlwA2A7gCoCuY IeEQQnUzMB+0P0m6HojnCy6SHrhqCX1L3m86bp1cojOlmIX551lvCS5tqcBdazURHTwpo7Os0c6vL 7qsocyMvUwMk/cA0UdnPYMydReedUam2UeZtGfNOfw/FrJxi8mp4pYU28b8872lZxUp8t6vUODEFp 9+bW4uG6AqYMomf/MBuXmGpt+k4Qer+ECDOYxWf+ldYQvkfO40iM13vDW+RsrVzj6VULqDlVt2aQ3 9VXNe4BM9hPEr+3OgVW8Hm5d4h2PPaZwGrRp0ObnHr7kidjhgMhbyCqr7ukCCYgZpiOXuyfDVOBOA mLCoEMyg==; Received: from verein.lst.de ([213.95.11.211]) by bombadil.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lecoL-0060Yj-Ni for linux-nvme@lists.infradead.org; Thu, 06 May 2021 12:08:58 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 40D2368BFE; Thu, 6 May 2021 14:08:55 +0200 (CEST) Date: Thu, 6 May 2021 14:08:55 +0200 From: Christoph Hellwig To: Sagi Grimberg Cc: Hannes Reinecke , Christoph Hellwig , Keith Busch , linux-nvme@lists.infradead.org, Keith Busch , Daniel Wagner Subject: Re: [PATCHv3] nvme-mpath: delete disk after last connection Message-ID: <20210506120855.GA1546@lst.de> References: <20210501120447.45478-1-hare@suse.de> <20210504085457.GA21826@lst.de> <5e4df9ec-c66c-17cf-542f-bac71b490e62@suse.de> <20210506074341.GC14615@lst.de> <96fbc678-a7e8-aaf3-5f15-8c866e683afe@suse.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210506_050857_945922_5C671249 X-CRM114-Status: GOOD ( 14.99 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 On Thu, May 06, 2021 at 02:47:00AM -0700, Sagi Grimberg wrote: > That is my assumption as well, and its a problem that by default > a pci device unplugs or a fabrics controller is lost and removed > the stacked mdraid on top stops functioning. > > I still think we can fix that by changing the semantics of implicit > queue_if_no_path and restore it as an explicit opt-in. So at very least we need to make sure we have the opt-in available before changing the defaults. _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme