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[2620:137:e000::1:20]) by mx.google.com with ESMTP id n18-20020a637212000000b0053ff2b1be3dsi1489523pgc.20.2023.06.01.15.08.25; Thu, 01 Jun 2023 15:08:40 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@invisiblethingslab.com header.s=fm1 header.b="I0u/vVfS"; dkim=pass header.i=@messagingengine.com header.s=fm1 header.b=nvwzhuTV; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232951AbjFAVsf (ORCPT + 99 others); Thu, 1 Jun 2023 17:48:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60632 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231346AbjFAVsd (ORCPT ); Thu, 1 Jun 2023 17:48:33 -0400 Received: from out3-smtp.messagingengine.com (out3-smtp.messagingengine.com [66.111.4.27]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 424A1184; Thu, 1 Jun 2023 14:48:31 -0700 (PDT) Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id 6CF635C019F; Thu, 1 Jun 2023 17:48:30 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute4.internal (MEProxy); Thu, 01 Jun 2023 17:48:30 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= invisiblethingslab.com; h=cc:cc:content-transfer-encoding :content-type:date:date:from:from:in-reply-to:message-id :mime-version:reply-to:sender:subject:subject:to:to; s=fm1; t= 1685656110; x=1685742510; bh=bdCjoPxZZnywq2ne1+ZsCnnZgLbVMiaq/28 6mmmutp8=; b=I0u/vVfS+aQQ+0NyvrXyNE7UrhtCpWYEUyH1yA0k/YaGnrGS1c4 01wX2m+YKT/91fE3cXoj2QWpReEjBxmHwt5e3iLj/NGc6cCtFq3rH3pg3YkB0uBn 1yOG7XVTHtywUBGOD7jcMvEfhcFn2XycCQ94zyBmXtvcbFAzjgCaYRINelnUIKry x8FM/Mb5Vusn8uNuo2jGxB4PXKixN2Phe7XX7Dv4WDgWxC+YSuPAB+1930fxc+CA UnVyPVrdlCOILz/V7KB8Wzxh36K1FArblj5uzC/CuaywBwsWuysCIdg9W5lHIY1f qbLdhltA9X6KZBNUAxp1PAFLsnHenkY2v2Q== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:date:date:feedback-id:feedback-id:from:from :in-reply-to:message-id:mime-version:reply-to:sender:subject :subject:to:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm1; t=1685656110; x=1685742510; bh=bdCjoPxZZnywq 2ne1+ZsCnnZgLbVMiaq/286mmmutp8=; b=nvwzhuTV4f1CsVyy62FIihquWO3e0 KQQQjF3F4jxnPqzwepUo1AHzpLTusGT/UKSoj1LyX8P+/aO37Bpx8rJ3a9unNBQS QUKindqIqfnlk9gYOA77MYLpc3RjggpZv4FagjqKDzSvKaeDYUEdlZkeBqsdVrqX DwC3qhTc9+H0bwmwqMGne4mvbFzgcNidqo9TaXfjw4Pi/kmoAY2bpPR8jC7Czfkf yTDFOqv+QX/WkQCGZlCdt6cglPlOVqYaiOz9lQifAoj1p0ynbx8JlumKVndpucH7 IeBZR7GsMxR+Wzk8YHyGTFaZzdNlCLOp6W4ntfVY3O7kqGTEmbrdgcZXA== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrfeelvddgtddvucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvvefufffkofgggfestdekredtredttdenucfhrhhomhepffgvmhhiucfo rghrihgvucfqsggvnhhouhhruceouggvmhhisehinhhvihhsihgslhgvthhhihhnghhslh grsgdrtghomheqnecuggftrfgrthhtvghrnhepvdefgeekvdekgfffgeekhfeijedtffek hefhleehfeejueetgfelgefgtdevieelnecuvehluhhsthgvrhfuihiivgeptdenucfrrg hrrghmpehmrghilhhfrhhomhepuggvmhhisehinhhvihhsihgslhgvthhhihhnghhslhgr sgdrtghomh X-ME-Proxy: Feedback-ID: iac594737:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Thu, 1 Jun 2023 17:48:29 -0400 (EDT) From: Demi Marie Obenour To: =?utf-8?q?Roger_Pau_Monn=C3=A9?= , Jens Axboe Cc: Demi Marie Obenour , =?utf-8?q?Marek_Marczy?= =?utf-8?q?kowski-G=C3=B3recki?= , xen-devel@lists.xenproject.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/2] xen/blkback: support delete-on-close block devices Date: Thu, 1 Jun 2023 17:48:21 -0400 Message-Id: <20230601214823.1701-1-demi@invisiblethingslab.com> X-Mailer: git-send-email 2.40.1 MIME-Version: 1.0 X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_LOW,SPF_HELO_PASS, SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1767539810809061478?= X-GMAIL-MSGID: =?utf-8?q?1767539810809061478?= These two patches allow userspace to provide an expected diskseq of a block device and discover when blkback has opened the device. Together, these features allow using blkback with delete-on-close block devices, such as loop devices with autoclear set. Demi Marie Obenour (2): xen-blkback: Implement diskseq checks xen-blkback: Inform userspace that device has been opened drivers/block/xen-blkback/xenbus.c | 147 ++++++++++++++++++++++++----- 1 file changed, 124 insertions(+), 23 deletions(-)