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Thu, 14 May 2020 06:58:46 +0000 Subject: Re: [bpf-next PATCH 1/3] bpf: sk_msg add some generic helpers that may be useful from sk_msg To: John Fastabend , , CC: , , , References: <158939776371.17281.8506900883049313932.stgit@john-Precision-5820-Tower> <158939783014.17281.11169741455617229373.stgit@john-Precision-5820-Tower> From: Yonghong Song Message-ID: <0c74ab32-7e82-1750-e3a0-9dfb9f3bf5c5@fb.com> Date: Wed, 13 May 2020 23:58:44 -0700 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 In-Reply-To: <158939783014.17281.11169741455617229373.stgit@john-Precision-5820-Tower> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-ClientProxiedBy: BY5PR03CA0010.namprd03.prod.outlook.com (2603:10b6:a03:1e0::20) To BYAPR15MB4088.namprd15.prod.outlook.com (2603:10b6:a02:c3::18) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from macbook-pro-52.local.dhcp.thefacebook.com (2620:10d:c090:400::5:7dec) by BY5PR03CA0010.namprd03.prod.outlook.com (2603:10b6:a03:1e0::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3000.20 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: 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 X-MS-Exchange-CrossTenant-Network-Message-Id: d8559d73-a2a0-4544-ef21-08d7f7d43f61 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 May 2020 06:58:46.7153 (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: wJ8kf/VQbe6Vp8hfdC5h33Rq9qMqeWDJkefb36yOrwPV2ILe85ruk5XylPo+/6ch X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR15MB3047 X-OriginatorOrg: fb.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216,18.0.676 definitions=2020-05-13_09:2020-05-13,2020-05-13 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 suspectscore=0 priorityscore=1501 mlxscore=0 adultscore=0 mlxlogscore=910 cotscore=-2147483648 impostorscore=0 spamscore=0 lowpriorityscore=0 clxscore=1015 bulkscore=0 phishscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005140063 X-FB-Internal: deliver Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org On 5/13/20 12:23 PM, John Fastabend wrote: > Add these generic helpers that may be useful to use from sk_msg programs. > The helpers do not depend on ctx so we can simply add them here, > > BPF_FUNC_perf_event_output > BPF_FUNC_get_current_uid_gid > BPF_FUNC_get_current_pid_tgid > BPF_FUNC_get_current_comm > BPF_FUNC_get_current_cgroup_id > BPF_FUNC_get_current_ancestor_cgroup_id > BPF_FUNC_get_cgroup_classid > > Signed-off-by: John Fastabend Acked-by: Yonghong Song