From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id C1423A04D8; Mon, 21 Sep 2020 19:17:00 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 605DB1DA92; Mon, 21 Sep 2020 19:16:53 +0200 (CEST) Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by dpdk.org (Postfix) with ESMTP id 734CF1DA7D for ; Mon, 21 Sep 2020 19:16:51 +0200 (CEST) IronPort-SDR: sw+08tk1r9ZgqxltiAUMK5vSRl4QHi54P/jxELO56/kUbEko6HEuJRIXeUR2dxeBzZnRPwlLeb /VWlhwLdSi2w== X-IronPort-AV: E=McAfee;i="6000,8403,9751"; a="148195488" X-IronPort-AV: E=Sophos;i="5.77,287,1596524400"; d="scan'208";a="148195488" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Sep 2020 10:16:50 -0700 IronPort-SDR: MJBlAKeOC3m8lD97TYzgIHYfiCi64cHjTQZQ3ln4uVjWmuB0V6oGnsEMNr49dCSndtPAkdn4wI ENdNM119yi7w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,287,1596524400"; d="scan'208";a="309145034" Received: from orsmsx604.amr.corp.intel.com ([10.22.229.17]) by orsmga006.jf.intel.com with ESMTP; 21 Sep 2020 10:16:50 -0700 Received: from orsmsx607.amr.corp.intel.com (10.22.229.20) by ORSMSX604.amr.corp.intel.com (10.22.229.17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Mon, 21 Sep 2020 10:16:50 -0700 Received: from orsmsx607.amr.corp.intel.com (10.22.229.20) by ORSMSX607.amr.corp.intel.com (10.22.229.20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Mon, 21 Sep 2020 10:16:49 -0700 Received: from ORSEDG601.ED.cps.intel.com (10.7.248.6) by orsmsx607.amr.corp.intel.com (10.22.229.20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5 via Frontend Transport; Mon, 21 Sep 2020 10:16:49 -0700 Received: from NAM10-MW2-obe.outbound.protection.outlook.com (104.47.55.104) by edgegateway.intel.com (134.134.137.102) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.1713.5; Mon, 21 Sep 2020 10:16:47 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=JB5WpQyJYbggNbHQhXx6WM1jDGrkyR1+9wnTUwPahnzGC3wpT1+Vqjrnsaj9FHdtG3pYI4KfkjLm0m/zlqJnkaqBKfJblhybsLKkAPQeNOAkocwha951NLeY33k1Yt8/dYYEe0fjUJTsBfL247TwDqp0ipFqkZ2+q1bhQuFHi0thEFYiI/CPLdk8IVkdY/kDWovLFlylR0VqaYytL6a6gTagel/A7ZQ0Ysm94x2Tb+S5SHeWz6joBGpzZuwE/4eIoDCsk7nJnqA6Hc9caakTIAvmjJVy0PqVj1SR4ATsviBWLVONyXMuV6RgJoPu+O6CxRTUNHuuj5vrdRNQXnCZBg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=LOt78ySB69hH+H19+7zFruszzn/Cs8PyaiXjRxCPfLU=; b=itZNZDATHdryHVM/eDtP5gy4RiyoDnLDsPQTdMzWKMAaH1OOujzHGiSC4djzEhMXOP+Tq02R3rTN4cTXGMa7GfG7wVbxUP7vY+ReedN2QsGAi759phyeFR+AHqKiBqQWVt1TAH3SUkIk5yRPvJhqitKiD/BRXkBfFQbrJ5H45mi0fgjS1bb0Rm+oXfdORHAe9eig8qjGGSrHYUcGLdHhjR3oBMy3cgJeKx8utrvQtzEPyUmB97C6EDZ2zbcFUH44sbxlSs0d9ceWm+soItF9DphYOvFHgbGXAC0Jjf4OR0MFEDmaqwSNBZe5hwyqVy+mseGfrehiZumkp8TVCNS4rA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=intel.com; dmarc=pass action=none header.from=intel.com; dkim=pass header.d=intel.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel.onmicrosoft.com; s=selector2-intel-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=LOt78ySB69hH+H19+7zFruszzn/Cs8PyaiXjRxCPfLU=; b=OWD12vFdVAheY0svP7ebvIIwWGF/7zcL1RZLqWTOEM8/rFMYks/kG+ArlSScqT9XF6eiin+0vKK2Pvvz9xyFdKS1pdRdQo/ojhbUBNvZWZpHOzoiaE7Iy/7dQEbPjTrkBWPfb5EN98tnwEt28D1SdL1s1yqDfv+EoA7uilr2BaE= Received: from SN6PR11MB2574.namprd11.prod.outlook.com (2603:10b6:805:59::14) by SN6PR11MB3295.namprd11.prod.outlook.com (2603:10b6:805:c2::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3391.11; Mon, 21 Sep 2020 17:16:45 +0000 Received: from SN6PR11MB2574.namprd11.prod.outlook.com ([fe80::54:b143:c75e:41bd]) by SN6PR11MB2574.namprd11.prod.outlook.com ([fe80::54:b143:c75e:41bd%7]) with mapi id 15.20.3391.026; Mon, 21 Sep 2020 17:16:45 +0000 From: "Eads, Gage" To: Steven Lariau , Olivier Matz CC: "dev@dpdk.org" , "nd@arm.com" , "dharmik.thakkar@arm.com" Thread-Topic: [PATCH 4/5] lib/stack: reload head when pop fails Thread-Index: AQHWiFCtiKlGMCC2H02LVYzq9LpvyqlzUWuA Date: Mon, 21 Sep 2020 17:16:44 +0000 Message-ID: References: <20200911152938.8019-1-steven.lariau@arm.com> <20200911152938.8019-5-steven.lariau@arm.com> In-Reply-To: <20200911152938.8019-5-steven.lariau@arm.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-version: 11.5.1.3 dlp-product: dlpe-windows dlp-reaction: no-action authentication-results: arm.com; dkim=none (message not signed) header.d=none;arm.com; dmarc=none action=none header.from=intel.com; x-originating-ip: [68.203.30.51] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 861059c9-df28-4309-1bc0-08d85e521da9 x-ms-traffictypediagnostic: SN6PR11MB3295: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:2887; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: YsUcbRtiiHalOOMNASZ6LlbNfm4bjVHrmaLlxRZNvHkYB8bED+EDJv4bEBkbp2HYMjyNH71z+9abSqj2hRoBVgUNOuKyO7lgIzeeCl2Z6qpv4xI+ACYzJgZrSDVpBJZHI3vRxL7RTuNKOGxKqacAWPuJYWj4CmN/x8iTtFqtVg9o19/ZSsZ6r6ku2IgvNUB/JTUoFoFOucN7mAjtl2MizKfIPNAEH/Q6DFfcDbCEyTT8PcsGzTAE97kUujYrMv3DUwRJlP6HCkwk5PolWHwB5mfTMODxn4BacmD43zgHvmAf5HyhXr1NqgoPI9Fx89Yh5+oRbL/vXgIMfUQeF5sVpKgx/1rftetNpzZDuU9o6m+lZovvj1LQqaxxXVSiIG3y x-forefront-antispam-report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:SN6PR11MB2574.namprd11.prod.outlook.com; PTR:; CAT:NONE; SFS:(4636009)(346002)(39860400002)(376002)(366004)(136003)(396003)(52536014)(2906002)(8936002)(33656002)(8676002)(110136005)(54906003)(478600001)(71200400001)(64756008)(66556008)(66476007)(5660300002)(9686003)(83380400001)(66446008)(186003)(86362001)(4744005)(316002)(6506007)(53546011)(55016002)(26005)(7696005)(66946007)(76116006)(4326008); DIR:OUT; SFP:1102; x-ms-exchange-antispam-messagedata: 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 x-ms-exchange-transport-forked: True Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: SN6PR11MB2574.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 861059c9-df28-4309-1bc0-08d85e521da9 X-MS-Exchange-CrossTenant-originalarrivaltime: 21 Sep 2020 17:16:44.9537 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: Wj+pD8GqzTvon0GufU85pMCsro4a+0VyTvqk4hHXJrtjm67NnKk6nyIVHKRqNij/hFMcwz/xhQIC23DJHhtQqA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR11MB3295 X-OriginatorOrg: intel.com Subject: Re: [dpdk-dev] [PATCH 4/5] lib/stack: reload head when pop fails X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" > -----Original Message----- > From: Steven Lariau > Sent: Friday, September 11, 2020 10:30 AM > To: Eads, Gage ; Olivier Matz > Cc: dev@dpdk.org; nd@arm.com; dharmik.thakkar@arm.com; Steven Lariau > > Subject: [PATCH 4/5] lib/stack: reload head when pop fails >=20 > List head must be loaded right before continue (when failed to > find the new head). > Without this, one thread might keep trying and failing to pop items > without ever loading the new correct head. >=20 > Signed-off-by: Steven Lariau > Reviewed-by: Dharmik Thakkar > Reviewed-by: Ruifeng Wang Good catch. Please add the following so the fix is considered for dpdk-stab= le: Fixes: 7e6e609939a8 ("stack: add C11 atomic implementation") Cc: stable@dpdk.org Acked-by: Gage Eads Thanks, Gage