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Tue, 11 Dec 2018 17:16:12 +0000 From: Martin Lau To: Roman Gushchin CC: "netdev@vger.kernel.org" , Kernel Team , "linux-kernel@vger.kernel.org" , Yonghong Song , Roman Gushchin , Alexei Starovoitov , Daniel Borkmann Subject: Re: [PATCH v2 bpf-next 2/3] bpf: add bpffs pretty print for cgroup local storage maps Thread-Topic: [PATCH v2 bpf-next 2/3] bpf: add bpffs pretty print for cgroup local storage maps Thread-Index: AQHUkOIfbqTqLnFamUS/HRDkHABfdaV5yKcA Date: Tue, 11 Dec 2018 17:16:12 +0000 Message-ID: <20181211171610.z4cym255ai42acip@kafai-mbp.dhcp.thefacebook.com> References: <20181210234302.31327-1-guro@fb.com> <20181210234302.31327-3-guro@fb.com> In-Reply-To: <20181210234302.31327-3-guro@fb.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: MWHPR1701CA0001.namprd17.prod.outlook.com (2603:10b6:301:14::11) To MWHPR15MB1790.namprd15.prod.outlook.com (2603:10b6:301:4e::19) x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [2620:10d:c090:200::7:a71b] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;MWHPR15MB1549;20:bCX0hJeYpd+gKlOO5qXQH4RRk9wyBCCowrq5IjBERV3YXrnYEcnFFJ13bVFbtR3Eg41glKwpoSlDzvQnYMKBHx1oXFmgeI7KMZzO/yAA8M5Nvi4uuAO23jxFLEs9AzqulLzY+xTM+Ldrns+jJWelP4QQPJK17DCvMbYFHxM5cJo= x-ms-office365-filtering-correlation-id: ffccb6ee-d14b-4f1e-108a-08d65f8c5966 x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390098)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600074)(711020)(2017052603328)(7153060)(7193020);SRVR:MWHPR15MB1549; 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received-spf: None (protection.outlook.com: fb.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: 28buIiKSAJlgJe+GzcDriTIVm2il4obsUeEcdbJOZZKj0m8mW1w4+9i6kO82s5C/2L7cP0pHcMC3t0SVR36Cc8PVjDgGmuUNympROFoYwJn5ZH0fmt11ogWk/dr7h7lW9qfXjhCUQgVrN7OEcvgkaWZ98OGxSr19gu+zw2tpyaKDR8FfebZfeIfx+SNEJtgYq+wlSkc9uXa7lRMs3jXgtnFSx+CckWSUxdUHPqDZT4JihCImkzhpwIjNFd4wF5SrtkpPg+58aQ05uDwdwR4IOp47/zLiUWeaT3Cf0IgNGViwfVLryDiNWO6kjVjR7AJk spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="us-ascii" Content-ID: <50FA535EC658A147AE425247066E6726@namprd15.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: ffccb6ee-d14b-4f1e-108a-08d65f8c5966 X-MS-Exchange-CrossTenant-originalarrivaltime: 11 Dec 2018 17:16:12.6768 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 8ae927fe-1255-47a7-a2af-5f3a069daaa2 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR15MB1549 X-OriginatorOrg: fb.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-12-11_05:,, signatures=0 X-Proofpoint-Spam-Reason: safe X-FB-Internal: Safe Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Dec 10, 2018 at 03:43:01PM -0800, Roman Gushchin wrote: > Implement bpffs pretty printing for cgroup local storage maps > (both shared and per-cpu). > Output example (captured for tools/testing/selftests/bpf/netcnt_prog.c): >=20 > Shared: > $ cat /sys/fs/bpf/map_2 > # WARNING!! The output is for debug purpose only > # WARNING!! The output format will change > {4294968594,1}: {9999,1039896} >=20 > Per-cpu: > $ cat /sys/fs/bpf/map_1 > # WARNING!! The output is for debug purpose only > # WARNING!! The output format will change > {4294968594,1}: { > cpu0: {0,0,0,0,0} > cpu1: {0,0,0,0,0} > cpu2: {1,104,0,0,0} > cpu3: {0,0,0,0,0} > } Acked-by: Martin KaFai Lau