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Mon, 16 Dec 2019 11:12:52 -0500 Received: from email.msg.corp.akamai.com ([172.27.165.112]) by prod-mail-ppoint6.akamai.com with ESMTP id 2wvuxydunk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Mon, 16 Dec 2019 11:12:51 -0500 Received: from ustx2ex-dag1mb6.msg.corp.akamai.com (172.27.165.124) by ustx2ex-dag1mb5.msg.corp.akamai.com (172.27.165.123) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Mon, 16 Dec 2019 10:12:50 -0600 Received: from ustx2ex-dag1mb6.msg.corp.akamai.com ([172.27.165.124]) by ustx2ex-dag1mb6.msg.corp.akamai.com ([172.27.165.124]) with mapi id 15.00.1473.005; Mon, 16 Dec 2019 08:12:50 -0800 From: "Lubashev, Igor" To: Alexey Budankov , Peter Zijlstra , Arnaldo Carvalho de Melo , "Ingo Molnar" , "jani.nikula@linux.intel.com" , "joonas.lahtinen@linux.intel.com" , "rodrigo.vivi@intel.com" , Alexei Starovoitov , "james.bottomley@hansenpartnership.com" , "benh@kernel.crashing.org" , Casey Schaufler , "serge@hallyn.com" , James Morris CC: Jiri Olsa , Andi Kleen , "Stephane Eranian" , Alexander Shishkin , Namhyung Kim , Jann Horn , Kees Cook , "Thomas Gleixner" , Tvrtko Ursulin , "linux-security-module@vger.kernel.org" , "selinux@vger.kernel.org" , linux-kernel , "linux-perf-users@vger.kernel.org" , "intel-gfx@lists.freedesktop.org" , "bgregg@netflix.com" , Song Liu , "bpf@vger.kernel.org" , "linux-parisc@vger.kernel.org" , "linuxppc-dev@lists.ozlabs.org" Subject: RE: [PATCH v2 2/7] perf/core: open access for CAP_SYS_PERFMON privileged process Thread-Topic: [PATCH v2 2/7] perf/core: open access for CAP_SYS_PERFMON privileged process Thread-Index: AQHVs+CfzGj9uMUtGUC4IRZHidt5Zae87MsA Date: Mon, 16 Dec 2019 16:12:50 +0000 Message-ID: <9316a1ab21f6441eb2b421acb818a2a1@ustx2ex-dag1mb6.msg.corp.akamai.com> References: <26101427-c0a3-db9f-39e9-9e5f4ddd009c@linux.intel.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [172.19.113.150] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-12-16_06:,, signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1911140001 definitions=main-1912160139 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-12-16_06:2019-12-16,2019-12-16 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 bulkscore=0 clxscore=1011 adultscore=0 spamscore=0 phishscore=0 lowpriorityscore=0 priorityscore=1501 malwarescore=0 mlxlogscore=999 suspectscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-1912160141 Sender: linux-parisc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org T24gTW9uLCBEZWMgMTYsIDIwMTkgYXQgMjoxNSBBTSwgQWxleGV5IEJ1ZGFua292IDxhbGV4ZXku YnVkYW5rb3ZAbGludXguaW50ZWwuY29tPiB3cm90ZToNCj4gDQo+IE9wZW4gYWNjZXNzIHRvIHBl cmZfZXZlbnRzIG1vbml0b3JpbmcgZm9yIENBUF9TWVNfUEVSRk1PTiBwcml2aWxlZ2VkDQo+IHBy b2Nlc3Nlcy4NCj4gRm9yIGJhY2t3YXJkIGNvbXBhdGliaWxpdHkgcmVhc29ucyBhY2Nlc3MgdG8g cGVyZl9ldmVudHMgc3Vic3lzdGVtIHJlbWFpbnMNCj4gb3BlbiBmb3IgQ0FQX1NZU19BRE1JTiBw cml2aWxlZ2VkIHByb2Nlc3NlcyBidXQgQ0FQX1NZU19BRE1JTiB1c2FnZQ0KPiBmb3Igc2VjdXJl IHBlcmZfZXZlbnRzIG1vbml0b3JpbmcgaXMgZGlzY291cmFnZWQgd2l0aCByZXNwZWN0IHRvDQo+ IENBUF9TWVNfUEVSRk1PTiBjYXBhYmlsaXR5Lg0KPiANCj4gU2lnbmVkLW9mZi1ieTogQWxleGV5 IEJ1ZGFua292IDxhbGV4ZXkuYnVkYW5rb3ZAbGludXguaW50ZWwuY29tPg0KPiAtLS0NCj4gIGlu Y2x1ZGUvbGludXgvcGVyZl9ldmVudC5oIHwgOSArKysrKystLS0NCj4gIDEgZmlsZSBjaGFuZ2Vk LCA2IGluc2VydGlvbnMoKyksIDMgZGVsZXRpb25zKC0pDQo+IA0KPiBkaWZmIC0tZ2l0IGEvaW5j bHVkZS9saW51eC9wZXJmX2V2ZW50LmggYi9pbmNsdWRlL2xpbnV4L3BlcmZfZXZlbnQuaCBpbmRl eA0KPiAzNGM3YzY5MTAwMjYuLjUyMzEzZDJjYzM0MyAxMDA2NDQNCj4gLS0tIGEvaW5jbHVkZS9s aW51eC9wZXJmX2V2ZW50LmgNCj4gKysrIGIvaW5jbHVkZS9saW51eC9wZXJmX2V2ZW50LmgNCj4g QEAgLTEyODUsNyArMTI4NSw4IEBAIHN0YXRpYyBpbmxpbmUgaW50IHBlcmZfaXNfcGFyYW5vaWQo dm9pZCkNCj4gDQo+ICBzdGF0aWMgaW5saW5lIGludCBwZXJmX2FsbG93X2tlcm5lbChzdHJ1Y3Qg cGVyZl9ldmVudF9hdHRyICphdHRyKSAgew0KPiAtCWlmIChzeXNjdGxfcGVyZl9ldmVudF9wYXJh bm9pZCA+IDEgJiYgIWNhcGFibGUoQ0FQX1NZU19BRE1JTikpDQo+ICsJaWYgKHN5c2N0bF9wZXJm X2V2ZW50X3BhcmFub2lkID4gMSAmJg0KPiArCSAgICEoY2FwYWJsZShDQVBfU1lTX1BFUkZNT04p IHx8IGNhcGFibGUoQ0FQX1NZU19BRE1JTikpKQ0KPiAgCQlyZXR1cm4gLUVBQ0NFUzsNCj4gDQo+ ICAJcmV0dXJuIHNlY3VyaXR5X3BlcmZfZXZlbnRfb3BlbihhdHRyLCBQRVJGX1NFQ1VSSVRZX0tF Uk5FTCk7IEBADQo+IC0xMjkzLDcgKzEyOTQsOCBAQCBzdGF0aWMgaW5saW5lIGludCBwZXJmX2Fs bG93X2tlcm5lbChzdHJ1Y3QNCj4gcGVyZl9ldmVudF9hdHRyICphdHRyKQ0KPiANCj4gIHN0YXRp YyBpbmxpbmUgaW50IHBlcmZfYWxsb3dfY3B1KHN0cnVjdCBwZXJmX2V2ZW50X2F0dHIgKmF0dHIp ICB7DQo+IC0JaWYgKHN5c2N0bF9wZXJmX2V2ZW50X3BhcmFub2lkID4gMCAmJiAhY2FwYWJsZShD QVBfU1lTX0FETUlOKSkNCj4gKwlpZiAoc3lzY3RsX3BlcmZfZXZlbnRfcGFyYW5vaWQgPiAwICYm DQo+ICsJICAgICEoY2FwYWJsZShDQVBfU1lTX1BFUkZNT04pIHx8IGNhcGFibGUoQ0FQX1NZU19B RE1JTikpKQ0KPiAgCQlyZXR1cm4gLUVBQ0NFUzsNCj4gDQo+ICAJcmV0dXJuIHNlY3VyaXR5X3Bl cmZfZXZlbnRfb3BlbihhdHRyLCBQRVJGX1NFQ1VSSVRZX0NQVSk7IEBAIC0NCj4gMTMwMSw3ICsx MzAzLDggQEAgc3RhdGljIGlubGluZSBpbnQgcGVyZl9hbGxvd19jcHUoc3RydWN0IHBlcmZfZXZl bnRfYXR0cg0KPiAqYXR0cikNCj4gDQo+ICBzdGF0aWMgaW5saW5lIGludCBwZXJmX2FsbG93X3Ry YWNlcG9pbnQoc3RydWN0IHBlcmZfZXZlbnRfYXR0ciAqYXR0cikgIHsNCj4gLQlpZiAoc3lzY3Rs X3BlcmZfZXZlbnRfcGFyYW5vaWQgPiAtMSAmJiAhY2FwYWJsZShDQVBfU1lTX0FETUlOKSkNCj4g KwlpZiAoc3lzY3RsX3BlcmZfZXZlbnRfcGFyYW5vaWQgPiAtMSAmJg0KPiArCSAgICAhKGNhcGFi bGUoQ0FQX1NZU19QRVJGTU9OKSB8fCBjYXBhYmxlKENBUF9TWVNfQURNSU4pKSkNCj4gIAkJcmV0 dXJuIC1FUEVSTTsNCj4gDQo+ICAJcmV0dXJuIHNlY3VyaXR5X3BlcmZfZXZlbnRfb3BlbihhdHRy LCBQRVJGX1NFQ1VSSVRZX1RSQUNFUE9JTlQpOw0KPiAtLQ0KPiAyLjIwLjENCg0KVGhhbmtzLiAg SSBsaWtlIHRoZSBpZGVhIG9mIENBUF9TWVNfUEVSRk1PTiB0aGF0IGRvZXMgbm90IHJlcXVpcmUg Q0FQX1NZU19BRE1JTi4gIEl0IG1ha2VzIGdyYW50aW5nIHVzZXJzIGFiaWxpdHkgdG8gcnVuIHBl cmYgYSBiaXQgc2FmZXIuDQoNCkkgc2VlIGEgbG90IG9mICIoY2FwYWJsZShDQVBfU1lTX1BFUkZN T04pIHx8IGNhcGFibGUoQ0FQX1NZU19BRE1JTikiIGNvbnN0cnVjdHMgbm93LiAgTWF5YmUgd3Jh cHBpbmcgaXQgaW4gYW4gIiBpbmxpbmUgYm9vbCBwZXJmbW9uX2NhcGFibGUoKSIgZGVmaW5lZCBz b21ld2hlcmUgKGxpa2UgaW4gL2luY2x1ZGUvbGludXgvY2FwYWJpbGl0eS5oKT8NCg0KLSBJZ29y DQo=