From patchwork Tue Nov 26 14:43:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrey Shinkevich X-Patchwork-Id: 11262581 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4BBE517F0 for ; Tue, 26 Nov 2019 14:44:13 +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 2CF0720656 for ; Tue, 26 Nov 2019 14:44:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2CF0720656 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=virtuozzo.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:56008 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iZc4a-0006xI-65 for patchwork-qemu-devel@patchwork.kernel.org; Tue, 26 Nov 2019 09:44:12 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:51801) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iZc3u-0005xa-Df for qemu-devel@nongnu.org; Tue, 26 Nov 2019 09:43:31 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iZc3s-0003vr-T3 for qemu-devel@nongnu.org; Tue, 26 Nov 2019 09:43:29 -0500 Received: from relay.sw.ru ([185.231.240.75]:47904) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iZc3s-0003vH-Ki; Tue, 26 Nov 2019 09:43:28 -0500 Received: from dhcp-172-16-25-136.sw.ru ([172.16.25.136] helo=localhost.sw.ru) by relay.sw.ru with esmtp (Exim 4.92.3) (envelope-from ) id 1iZc3j-0004JL-27; Tue, 26 Nov 2019 17:43:19 +0300 From: Andrey Shinkevich To: qemu-devel@nongnu.org, qemu-block@nongnu.org Subject: [PATCH v9 0/3] qcow2: advanced compression options Date: Tue, 26 Nov 2019 17:43:15 +0300 Message-Id: <1574779398-88772-1-git-send-email-andrey.shinkevich@virtuozzo.com> X-Mailer: git-send-email 1.8.3.1 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 185.231.240.75 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, vsementsov@virtuozzo.com, armbru@redhat.com, mreitz@redhat.com, andrey.shinkevich@virtuozzo.com, den@openvz.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" The compression filter driver is introduced as suggested by Max. A sample usage of the filter can be found in the test #214. Now, multiple clusters can be written compressed. It is useful for the backup job. v9: The filter functions unrelated to the 'file' child were removed. The check for compression support in bs->file is checked in the compress_open(). Discussed in the email thread with the message ID <1574056144-625164-1-git-send-email-andrey.shinkevich@virtuozzo.com> Andrey Shinkevich (3): block: introduce compress filter driver qcow2: Allow writing compressed data of multiple clusters tests/qemu-iotests: add case to write compressed data of multiple clusters block/Makefile.objs | 1 + block/filter-compress.c | 190 +++++++++++++++++++++++++++++++++++++++++++++ block/qcow2.c | 102 +++++++++++++++++------- qapi/block-core.json | 10 ++- tests/qemu-iotests/214 | 43 ++++++++++ tests/qemu-iotests/214.out | 14 ++++ 6 files changed, 329 insertions(+), 31 deletions(-) create mode 100644 block/filter-compress.c