From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45802) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c4Zes-0004aA-V8 for qemu-devel@nongnu.org; Wed, 09 Nov 2016 15:39:48 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c4Zep-0006am-9m for qemu-devel@nongnu.org; Wed, 09 Nov 2016 15:39:46 -0500 Received: from indium.canonical.com ([91.189.90.7]:46564) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1c4Zep-0006a5-4l for qemu-devel@nongnu.org; Wed, 09 Nov 2016 15:39:43 -0500 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.76 #1 (Debian)) id 1c4Zen-0003Mq-Lp for ; Wed, 09 Nov 2016 20:39:41 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 61B4F2E80BF for ; Wed, 9 Nov 2016 20:39:41 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Wed, 09 Nov 2016 20:25:41 -0000 From: Thomas Huth <603878@bugs.launchpad.net> Reply-To: Bug 603878 <603878@bugs.launchpad.net> Sender: bounces@canonical.com References: <20100710070634.22855.99257.malonedeb@soybean.canonical.com> Message-Id: <20161109202541.4579.26988.launchpad@gac.canonical.com> Errors-To: bounces@canonical.com Subject: [Qemu-devel] [Bug 603878] Re: [Feature request] qemu-img option about recompressing List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org ** Changed in: qemu Importance: Undecided =3D> Wishlist -- = 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