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, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 6CA54C433B4 for ; Thu, 22 Apr 2021 06:00:52 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 9DC2961417 for ; Thu, 22 Apr 2021 06:00:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9DC2961417 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bugs.launchpad.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:55578 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lZSOQ-0006oa-GM for qemu-devel@archiver.kernel.org; Thu, 22 Apr 2021 02:00:50 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:39040) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lZSNM-0006Nu-WC for qemu-devel@nongnu.org; Thu, 22 Apr 2021 01:59:45 -0400 Received: from indium.canonical.com ([91.189.90.7]:54588) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lZSNL-0008Fx-D0 for qemu-devel@nongnu.org; Thu, 22 Apr 2021 01:59:44 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1lZSNK-0005lE-Am for ; Thu, 22 Apr 2021 05:59:42 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 47D052E815D for ; Thu, 22 Apr 2021 05:59:42 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Thu, 22 Apr 2021 05:47:35 -0000 From: =?utf-8?b?0JrQvtGA0LXQvdCx0LXRgNCzINCc0LDRgNC6?= <603878@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=New; importance=Wishlist; assignee=None; X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: socketpair th-huth X-Launchpad-Bug-Reporter: =?utf-8?b?0JrQvtGA0LXQvdCx0LXRgNCzINCc0LDRgNC6?= =?utf-8?q?_=28socketpair=29?= X-Launchpad-Bug-Modifier: =?utf-8?b?0JrQvtGA0LXQvdCx0LXRgNCzINCc0LDRgNC6?= =?utf-8?q?_=28socketpair=29?= References: <20100710070634.22855.99257.malonedeb@soybean.canonical.com> Message-Id: <161907045677.10328.8967999942061695218.launchpad@wampee.canonical.com> Subject: [Bug 603878] Re: [Feature request] qemu-img option about recompressing X-Launchpad-Message-Rationale: Subscriber (QEMU) @qemu-devel-ml X-Launchpad-Message-For: qemu-devel-ml Precedence: bulk X-Generated-By: Launchpad (canonical.com); Revision="1552fceb1603b3da6cfa437575d9c9fc4b2e683a"; Instance="production" X-Launchpad-Hash: 81795da378eb5da2a2f3bb39c963e2a8972868e0 Received-SPF: none client-ip=91.189.90.7; envelope-from=bounces@canonical.com; helo=indium.canonical.com X-Spam_score_int: -65 X-Spam_score: -6.6 X-Spam_bar: ------ X-Spam_report: (-6.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Bug 603878 <603878@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" ** Changed in: qemu Status: Incomplete =3D> New -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/603878 Title: [Feature request] qemu-img option about recompressing Status in QEMU: New Bug description: Suppose I have a fresh compressed qcow2 image. After some time the data were recorded without compression. I decide to make "QEMU-IMG convert" for that image to reduce its size. I want a new option, which selects between the two algorithms overdriven = images: 1. extract all / compress again when converting images (in the current im= plementation) 2. compress only uncompressed blocks and just copy the compressed blocks = without re-compression. This option is only needed when converting compressed image to compressed and the compression algorithm is the same. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/603878/+subscriptions