From nobody Tue Feb 10 00:45:11 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1598669090; cv=none; d=zohomail.com; s=zohoarc; b=lRWTR4973l4pspN6dcOJ66LLeOQFH407Arz93QUvI65uXtXFNwY51DU1cteDUMNykVeRoRyUJe0ruqDEJDzrQ6p1bUPIZYYy0PjBlYsmACa8HluWxjmDG+JwUJ5o61MgB+LDW0PBs+soIocKLCV5xK/5iRqxg3VVcyOmHaiKRCw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1598669090; h=Content-Type:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=4UBQKjF2bXK6Dnl80SVaRZ2EJkJcPtwG5vVk3ZQOKKY=; b=MQFRdIf4LLSiczqCDxNE3vlUVz0NF6jL73+0sK8pwRKc5QzRMzZ8g1tO09cBWa6BbiTnHnpQp0F4hb+TKni2URDfizn57UJf+wK1Q5I9z4CQj0G3n88mUxOHQICmsKpdSTXhcIJpva3ETG00Qwe+WJFmdN6RBcJVXvdmcNO2ESY= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1598669090417967.4013808433051; Fri, 28 Aug 2020 19:44:50 -0700 (PDT) Received: from localhost ([::1]:42056 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kBqqn-0008UK-RB for importer@patchew.org; Fri, 28 Aug 2020 22:44:17 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49588) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kBqoY-0003VB-Qt for qemu-devel@nongnu.org; Fri, 28 Aug 2020 22:41:58 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:4667 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kBqoV-0001wm-SG for qemu-devel@nongnu.org; Fri, 28 Aug 2020 22:41:58 -0400 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 76C2BD9F84FDFCC74CAE; Sat, 29 Aug 2020 10:41:43 +0800 (CST) Received: from huawei.com (10.175.101.6) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.487.0; Sat, 29 Aug 2020 10:41:35 +0800 From: Chuan Zheng To: , , , , Subject: [PATCH v6 02/12] migration/dirtyrate: add DirtyRateStatus to denote calculation status Date: Sat, 29 Aug 2020 10:52:47 +0800 Message-ID: <1598669577-76914-3-git-send-email-zhengchuan@huawei.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1598669577-76914-1-git-send-email-zhengchuan@huawei.com> References: <1598669577-76914-1-git-send-email-zhengchuan@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-CFilter-Loop: Reflected Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=45.249.212.190; envelope-from=zhengchuan@huawei.com; helo=huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/28 22:41:44 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-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: alex.chen@huawei.com, ann.zhuangyanying@huawei.com, zhang.zhanghailiang@huawei.com, xiexiangyou@huawei.com, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" add DirtyRateStatus to denote calculating status. Signed-off-by: Chuan Zheng Reviewed-by: Dr. David Alan Gilbert --- migration/dirtyrate.c | 22 ++++++++++++++++++++++ qapi/migration.json | 17 +++++++++++++++++ 2 files changed, 39 insertions(+) diff --git a/migration/dirtyrate.c b/migration/dirtyrate.c index 44d673a..035ccd1 100644 --- a/migration/dirtyrate.c +++ b/migration/dirtyrate.c @@ -22,6 +22,19 @@ #include "migration.h" #include "dirtyrate.h" =20 +static int CalculatingState =3D DIRTY_RATE_STATUS_UNSTARTED; + +static int dirtyrate_set_state(int *state, int old_state, int new_state) +{ + assert(new_state < DIRTY_RATE_STATUS__MAX); + if (atomic_cmpxchg(state, old_state, new_state) =3D=3D old_state) { + return 0; + } else { + return -1; + } +} + + static void calculate_dirtyrate(struct DirtyRateConfig config) { /* todo */ @@ -31,8 +44,17 @@ static void calculate_dirtyrate(struct DirtyRateConfig c= onfig) void *get_dirtyrate_thread(void *arg) { struct DirtyRateConfig config =3D *(struct DirtyRateConfig *)arg; + int ret; + + ret =3D dirtyrate_set_state(&CalculatingState, DIRTY_RATE_STATUS_UNSTA= RTED, + DIRTY_RATE_STATUS_MEASURING); + if (ret =3D=3D -1) { + return NULL; + } =20 calculate_dirtyrate(config); =20 + ret =3D dirtyrate_set_state(&CalculatingState, DIRTY_RATE_STATUS_MEASU= RING, + DIRTY_RATE_STATUS_MEASURED); return NULL; } diff --git a/qapi/migration.json b/qapi/migration.json index 5f6b061..061ff25 100644 --- a/qapi/migration.json +++ b/qapi/migration.json @@ -1720,3 +1720,20 @@ ## { 'event': 'UNPLUG_PRIMARY', 'data': { 'device-id': 'str' } } + +## +# @DirtyRateStatus: +# +# An enumeration of dirtyrate status. +# +# @unstarted: the dirtyrate thread has not been started. +# +# @measuring: the dirtyrate thread is measuring. +# +# @measured: the dirtyrate thread has measured and results are available. +# +# Since: 5.2 +# +## +{ 'enum': 'DirtyRateStatus', + 'data': [ 'unstarted', 'measuring', 'measured'] } --=20 1.8.3.1