Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Yonghong Song <yhs@fb.com>
To:     Brian Vazquez <brianvv.kernel@gmail.com>
CC:     Brian Vazquez <brianvv@google.com>,
        Alexei Starovoitov <ast@kernel.org>,
        Daniel Borkmann <daniel@iogearbox.net>,
        "David S . Miller" <davem@davemloft.net>,
        Stanislav Fomichev <sdf@google.com>,
        Petar Penkov <ppenkov@google.com>,
        Willem de Bruijn <willemb@google.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
        "bpf@vger.kernel.org" <bpf@vger.kernel.org>
Subject: Re: [PATCH v3 bpf-next 06/11] bpf: add batch ops to all htab bpf map
Thread-Topic: [PATCH v3 bpf-next 06/11] bpf: add batch ops to all htab bpf map
Thread-Index: AQHVsHMuYMDKZmq21kWyUxx3YJSoMae4bbuAgCaCG4CAALzqAA==
Date:   Tue, 7 Jan 2020 18:18:16 +0000
Message-ID: <8ba54068-0a0f-479e-e4d7-42bfb7f8ed55@fb.com>
References: <20191211223344.165549-1-brianvv@google.com>
 <20191211223344.165549-7-brianvv@google.com>
 <a33dab7b-0f46-c29f-0db1-a5539c433b3d@fb.com>
 <CABCgpaVC-gCf58VmCx2XwwHoZ2FXHmtBfqzqJoPeeg2Q=DvRzg@mail.gmail.com>
In-Reply-To: <CABCgpaVC-gCf58VmCx2XwwHoZ2FXHmtBfqzqJoPeeg2Q=DvRzg@mail.gmail.com>
Accept-Language: en-US
Content-Language: en-US
x-ms-exchange-messagesentrepresentingtype: 1
x-originating-ip: [2620:10d:c090:200::1:2af9]
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: 957c5fe8-5d56-402b-33b2-08d7939df775
x-ms-traffictypediagnostic: DM5PR15MB1113:
x-microsoft-antispam-prvs: <DM5PR15MB11138BC48FE0EB567FE111A7D33F0@DM5PR15MB1113.namprd15.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:4125;
x-forefront-prvs: 027578BB13
x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(366004)(199004)(189003)(6506007)(53546011)(7416002)(71200400001)(52116002)(2616005)(8936002)(186003)(16526019)(6486002)(31686004)(81166006)(81156014)(6916009)(8676002)(5660300002)(6512007)(54906003)(31696002)(86362001)(2906002)(498600001)(4326008)(36756003)(966005)(66476007)(66446008)(64756008)(66946007)(66556008);DIR:OUT;SFP:1102;SCL:1;SRVR:DM5PR15MB1113;H:DM5PR15MB1675.namprd15.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1;
received-spf: None (protection.outlook.com: fb.com does not designate
 permitted sender hosts)
x-ms-exchange-senderadcheck: 1
x-microsoft-antispam: BCL:0;
x-microsoft-antispam-message-info: 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
x-ms-exchange-transport-forked: True
Content-Type: text/plain; charset="utf-8"
Content-ID: <84FCF98D8EA57B438098981CC895CAFC@namprd15.prod.outlook.com>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-Network-Message-Id: 957c5fe8-5d56-402b-33b2-08d7939df775
X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Jan 2020 18:18:16.8725
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 8ae927fe-1255-47a7-a2af-5f3a069daaa2
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: ZDd5IhS9OOC8TAnET3Qfb5+H56vN62+yf7fa7hhkR72I0kOFR5EoqBG1YDevzE78
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR15MB1113
X-OriginatorOrg: fb.com
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572
 definitions=2020-01-07_06:2020-01-07,2020-01-07 signatures=0
X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 malwarescore=0
 suspectscore=0 lowpriorityscore=0 bulkscore=0 clxscore=1015
 impostorscore=0 priorityscore=1501 spamscore=0 adultscore=0 phishscore=0
 mlxlogscore=999 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1
 engine=8.12.0-1910280000 definitions=main-2001070144
X-FB-Internal: deliver
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
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