From patchwork Tue Oct 27 15:15:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Wolf X-Patchwork-Id: 301813 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=-9.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED autolearn=ham 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 BF4B3C55178 for ; Tue, 27 Oct 2020 15:17:33 +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 2120B2064B for ; Tue, 27 Oct 2020 15:17:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="gxvjiXzg" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2120B2064B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:47302 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kXQj6-0007Vv-1z for qemu-devel@archiver.kernel.org; Tue, 27 Oct 2020 11:17:32 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57780) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kXQh5-00060q-SG for qemu-devel@nongnu.org; Tue, 27 Oct 2020 11:15:27 -0400 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:22363) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kXQh3-0007ch-89 for qemu-devel@nongnu.org; Tue, 27 Oct 2020 11:15:27 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1603811724; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ntqGXYo9lr723+8Dd351mPk63pIW8utRAmMqxbub4sg=; b=gxvjiXzgR0msehfO+ES63X6EU1b3cjCEHuCCHv4PdXrrC226ldquPQDgETaRXU91bvRtvJ v43ljWAr4YmmZwvMgxBJt06+uaAwAdkZl1NcgCzrZXDkrnEIoli3RFN5GEsA11UjzhJkD0 5QHPSyLXrYFpFjT7+JQjziiK+iqEk6c= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-596-6PMuBtGwMpOKe26lXuXiAQ-1; Tue, 27 Oct 2020 11:15:20 -0400 X-MC-Unique: 6PMuBtGwMpOKe26lXuXiAQ-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id B5713EC1C0; Tue, 27 Oct 2020 15:15:19 +0000 (UTC) Received: from merkur.redhat.com (ovpn-114-16.ams2.redhat.com [10.36.114.16]) by smtp.corp.redhat.com (Postfix) with ESMTP id B5AF855773; Tue, 27 Oct 2020 15:15:18 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Subject: [PULL 1/5] qemu-img: add support for rate limit in qemu-img commit Date: Tue, 27 Oct 2020 16:15:11 +0100 Message-Id: <20201027151515.213565-2-kwolf@redhat.com> In-Reply-To: <20201027151515.213565-1-kwolf@redhat.com> References: <20201027151515.213565-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kwolf@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=63.128.21.124; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/27 01:06:07 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, 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: , Cc: kwolf@redhat.com, peter.maydell@linaro.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Zhengui add support for rate limit in qemu-img commit. Signed-off-by: Zhengui Message-Id: <1603205264-17424-2-git-send-email-lizhengui@huawei.com> Reviewed-by: Alberto Garcia Signed-off-by: Kevin Wolf --- docs/tools/qemu-img.rst | 4 +++- qemu-img.c | 11 +++++++++-- qemu-img-cmds.hx | 4 ++-- 3 files changed, 14 insertions(+), 5 deletions(-) diff --git a/docs/tools/qemu-img.rst b/docs/tools/qemu-img.rst index c35bd64822..bcb11b0899 100644 --- a/docs/tools/qemu-img.rst +++ b/docs/tools/qemu-img.rst @@ -349,7 +349,7 @@ Command description: state after (the attempt at) repairing it. That is, a successful ``-r all`` will yield the exit code 0, independently of the image state before. -.. option:: commit [--object OBJECTDEF] [--image-opts] [-q] [-f FMT] [-t CACHE] [-b BASE] [-d] [-p] FILENAME +.. option:: commit [--object OBJECTDEF] [--image-opts] [-q] [-f FMT] [-t CACHE] [-b BASE] [-r RATE_LIMIT] [-d] [-p] FILENAME Commit the changes recorded in *FILENAME* in its base image or backing file. If the backing file is smaller than the snapshot, then the backing file will be @@ -371,6 +371,8 @@ Command description: garbage data when read. For this reason, ``-b`` implies ``-d`` (so that the top image stays valid). + The rate limit for the commit process is specified by ``-r``. + .. option:: compare [--object OBJECTDEF] [--image-opts] [-f FMT] [-F FMT] [-T SRC_CACHE] [-p] [-q] [-s] [-U] FILENAME1 FILENAME2 Check if two images have the same content. You can compare images with diff --git a/qemu-img.c b/qemu-img.c index 2103507936..3023abea8b 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -980,6 +980,7 @@ static int img_commit(int argc, char **argv) CommonBlockJobCBInfo cbi; bool image_opts = false; AioContext *aio_context; + int64_t rate_limit = 0; fmt = NULL; cache = BDRV_DEFAULT_CACHE; @@ -991,7 +992,7 @@ static int img_commit(int argc, char **argv) {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, {0, 0, 0, 0} }; - c = getopt_long(argc, argv, ":f:ht:b:dpq", + c = getopt_long(argc, argv, ":f:ht:b:dpqr:", long_options, NULL); if (c == -1) { break; @@ -1026,6 +1027,12 @@ static int img_commit(int argc, char **argv) case 'q': quiet = true; break; + case 'r': + rate_limit = cvtnum("rate limit", optarg); + if (rate_limit < 0) { + return 1; + } + break; case OPTION_OBJECT: { QemuOpts *opts; opts = qemu_opts_parse_noisily(&qemu_object_opts, @@ -1099,7 +1106,7 @@ static int img_commit(int argc, char **argv) aio_context = bdrv_get_aio_context(bs); aio_context_acquire(aio_context); - commit_active_start("commit", bs, base_bs, JOB_DEFAULT, 0, + commit_active_start("commit", bs, base_bs, JOB_DEFAULT, rate_limit, BLOCKDEV_ON_ERROR_REPORT, NULL, common_block_job_cb, &cbi, false, &local_err); aio_context_release(aio_context); diff --git a/qemu-img-cmds.hx b/qemu-img-cmds.hx index cab8234235..965c1e3e59 100644 --- a/qemu-img-cmds.hx +++ b/qemu-img-cmds.hx @@ -34,9 +34,9 @@ SRST ERST DEF("commit", img_commit, - "commit [--object objectdef] [--image-opts] [-q] [-f fmt] [-t cache] [-b base] [-d] [-p] filename") + "commit [--object objectdef] [--image-opts] [-q] [-f fmt] [-t cache] [-b base] [-r rate_limit] [-d] [-p] filename") SRST -.. option:: commit [--object OBJECTDEF] [--image-opts] [-q] [-f FMT] [-t CACHE] [-b BASE] [-d] [-p] FILENAME +.. option:: commit [--object OBJECTDEF] [--image-opts] [-q] [-f FMT] [-t CACHE] [-b BASE] [-r RATE_LIMIT] [-d] [-p] FILENAME ERST DEF("compare", img_compare,