From patchwork Mon Oct 12 17:43:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Xingtao Yao \(Fujitsu\)\" via" X-Patchwork-Id: 271471 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=-6.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT 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 47F3DC433E7 for ; Mon, 12 Oct 2020 17:45:34 +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 C1148206CB for ; Mon, 12 Oct 2020 17:45:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C1148206CB Authentication-Results: mail.kernel.org; dmarc=pass (p=none dis=none) header.from=nongnu.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:55094 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kS1t6-0007m9-Nk for qemu-devel@archiver.kernel.org; Mon, 12 Oct 2020 13:45:32 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58402) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kS1s1-0006iK-BT; Mon, 12 Oct 2020 13:44:25 -0400 Received: from relay.sw.ru ([185.231.240.75]:60458 helo=relay3.sw.ru) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kS1ry-0007A1-Fl; Mon, 12 Oct 2020 13:44:24 -0400 Received: from [172.16.25.136] (helo=localhost.sw.ru) by relay3.sw.ru with esmtp (Exim 4.94) (envelope-from ) id 1kS1qv-0047iC-So; Mon, 12 Oct 2020 20:43:17 +0300 To: qemu-block@nongnu.org Cc: qemu-devel@nongnu.org, kwolf@redhat.com, mreitz@redhat.com, fam@euphon.net, stefanha@redhat.com, armbru@redhat.com, jsnow@redhat.com, libvir-list@redhat.com, eblake@redhat.com, den@openvz.org, vsementsov@virtuozzo.com, andrey.shinkevich@virtuozzo.com Subject: [PATCH v11 00/13] Apply COR-filter to the block-stream permanently Date: Mon, 12 Oct 2020 20:43:12 +0300 Message-Id: <1602524605-481160-1-git-send-email-andrey.shinkevich@virtuozzo.com> X-Mailer: git-send-email 1.8.3.1 Received-SPF: pass client-ip=185.231.240.75; envelope-from=andrey.shinkevich@virtuozzo.com; helo=relay3.sw.ru X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/12 13:44:17 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Reply-to: Andrey Shinkevich X-Patchwork-Original-From: Andrey Shinkevich via From: "Xingtao Yao \(Fujitsu\)\" via" The iotest case test_stream_parallel still does not pass after the COR-filter is inserted into the backing chain. As the test case may not be initialized, it does not make a sense and was removed again. v11: 04: Base node overlay is used instead of base. 05: Base node overlay is used instead of base. 06: New. 07: New. 08: New. 09: The new BDS-member 'supported_read_flags' is applied. 10: The 'base_metadata' variable renamed to 'base_unfiltered'. 11: New. 12: The backing-file argument is left in the QMP interface. Warning added. 13: The BDRV_REQ_COPY_ON_READ removed from the stream_populate(); The 'implicit' initialization moved back to COR-filter driver. Base node overlay is used instead of base. The v8 Message-Id: <1601383109-110988-1-git-send-email-andrey.shinkevich@virtuozzo.com> Andrey Shinkevich (13): copy-on-read: Support preadv/pwritev_part functions copy-on-read: add filter append/drop functions qapi: add filter-node-name to block-stream copy-on-read: pass overlay base node name to COR driver copy-on-read: limit COR operations to base in COR driver block: modify the comment for BDRV_REQ_PREFETCH flag block: include supported_read_flags into BDS structure copy-on-read: add support for BDRV_REQ_PREFETCH to COR-filter copy-on-read: skip non-guest reads if no copy needed stream: skip filters when writing backing file name to QCOW2 header stream: mark backing-file argument as deprecated stream: remove unused backing-file name parameter block: apply COR-filter to block-stream jobs block/copy-on-read.c | 171 ++++++++++++++++++++++++++++++++++++++--- block/copy-on-read.h | 35 +++++++++ block/io.c | 3 +- block/monitor/block-hmp-cmds.c | 4 +- block/stream.c | 112 ++++++++++++++++----------- blockdev.c | 25 +++--- docs/system/deprecated.rst | 6 ++ include/block/block.h | 7 +- include/block/block_int.h | 13 +++- qapi/block-core.json | 6 ++ tests/qemu-iotests/030 | 51 ++---------- tests/qemu-iotests/030.out | 4 +- tests/qemu-iotests/141.out | 2 +- tests/qemu-iotests/245 | 19 +++-- 14 files changed, 324 insertions(+), 134 deletions(-) create mode 100644 block/copy-on-read.h