From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CC592C43460 for ; Thu, 29 Apr 2021 22:48:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A5A7D61468 for ; Thu, 29 Apr 2021 22:48:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229905AbhD2WtM (ORCPT ); Thu, 29 Apr 2021 18:49:12 -0400 Received: from szxga02-in.huawei.com ([45.249.212.188]:3972 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229757AbhD2WtH (ORCPT ); Thu, 29 Apr 2021 18:49:07 -0400 Received: from dggeme760-chm.china.huawei.com (unknown [172.30.72.57]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4FWVw55cB6zYdM5; Fri, 30 Apr 2021 06:45:57 +0800 (CST) Received: from dggemi761-chm.china.huawei.com (10.1.198.147) by dggeme760-chm.china.huawei.com (10.3.19.106) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Fri, 30 Apr 2021 06:48:16 +0800 Received: from dggemi761-chm.china.huawei.com ([10.9.49.202]) by dggemi761-chm.china.huawei.com ([10.9.49.202]) with mapi id 15.01.2176.012; Fri, 30 Apr 2021 06:48:15 +0800 From: "Song Bao Hua (Barry Song)" To: Dave Hansen , "tiantao (H)" , "corbet@lwn.net" , "gregkh@linuxfoundation.org" CC: "linux-doc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "Rafael J. Wysocki" , Peter Zijlstra , "Valentin Schneider" , Dave Hansen , Daniel Bristot de Oliveira Subject: RE: [PATCH 1/2] CPU, NUMA topology ABIs: clarify the overflow issue of sysfs pagebuf Thread-Topic: [PATCH 1/2] CPU, NUMA topology ABIs: clarify the overflow issue of sysfs pagebuf Thread-Index: AQHXPMXH0SQBD1qG+ECo3ZrOidSRtqrLBimAgADzHOD//4cYAIAAjhuw//+CrICAAIZiwA== Date: Thu, 29 Apr 2021 22:48:15 +0000 Message-ID: <1daf0e3e1bc342c091304f1d168491a3@hisilicon.com> References: <1619679819-45256-1-git-send-email-tiantao6@hisilicon.com> <1619679819-45256-2-git-send-email-tiantao6@hisilicon.com> <146e051b-603c-a6d3-43d8-d083cf2c8119@intel.com> <602918a1e2214ea7bd0890a751975566@hisilicon.com> <7c663f7e-07e0-6d95-3012-6e31a1b78f7e@intel.com> <4bf6870f7f3942398e4d1fdaa42184c7@hisilicon.com> In-Reply-To: Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.126.200.93] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org DQoNCj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCj4gRnJvbTogRGF2ZSBIYW5zZW4gW21h aWx0bzpkYXZlLmhhbnNlbkBpbnRlbC5jb21dDQo+IFNlbnQ6IEZyaWRheSwgQXByaWwgMzAsIDIw MjEgMTA6MzkgQU0NCj4gVG86IFNvbmcgQmFvIEh1YSAoQmFycnkgU29uZykgPHNvbmcuYmFvLmh1 YUBoaXNpbGljb24uY29tPjsgdGlhbnRhbyAoSCkNCj4gPHRpYW50YW82QGhpc2lsaWNvbi5jb20+ OyBjb3JiZXRAbHduLm5ldDsgZ3JlZ2toQGxpbnV4Zm91bmRhdGlvbi5vcmcNCj4gQ2M6IGxpbnV4 LWRvY0B2Z2VyLmtlcm5lbC5vcmc7IGxpbnV4LWtlcm5lbEB2Z2VyLmtlcm5lbC5vcmc7IFJhZmFl bCBKLg0KPiBXeXNvY2tpIDxyYWZhZWxAa2VybmVsLm9yZz47IFBldGVyIFppamxzdHJhIDxwZXRl cnpAaW5mcmFkZWFkLm9yZz47IFZhbGVudGluDQo+IFNjaG5laWRlciA8dmFsZW50aW4uc2NobmVp ZGVyQGFybS5jb20+OyBEYXZlIEhhbnNlbg0KPiA8ZGF2ZS5oYW5zZW5AbGludXguaW50ZWwuY29t PjsgRGFuaWVsIEJyaXN0b3QgZGUgT2xpdmVpcmEgPGJyaXN0b3RAcmVkaGF0LmNvbT4NCj4gU3Vi amVjdDogUmU6IFtQQVRDSCAxLzJdIENQVSwgTlVNQSB0b3BvbG9neSBBQklzOiBjbGFyaWZ5IHRo ZSBvdmVyZmxvdyBpc3N1ZQ0KPiBvZiBzeXNmcyBwYWdlYnVmDQo+IA0KPiBPbiA0LzI5LzIxIDM6 MzIgUE0sIFNvbmcgQmFvIEh1YSAoQmFycnkgU29uZykgd3JvdGU6DQo+ID4gJCBzdHJhY2UgbnVt YWN0bCAtLWhhcmR3YXJlICAyPiYxIHwgZ3JlcCBjcHUNCj4gPiBvcGVuYXQoQVRfRkRDV0QsICIv c3lzL2RldmljZXMvc3lzdGVtL2NwdSIsDQo+ID4gT19SRE9OTFl8T19OT05CTE9DS3xPX0RJUkVD VE9SWXxPX0NMT0VYRUMpID0gMw0KPiA+IG9wZW5hdChBVF9GRENXRCwgIi9zeXMvZGV2aWNlcy9z eXN0ZW0vbm9kZS9ub2RlMC9jcHVtYXAiLCBPX1JET05MWSkgPSAzDQo+ID4gb3BlbmF0KEFUX0ZE Q1dELCAiL3N5cy9kZXZpY2VzL3N5c3RlbS9ub2RlL25vZGUxL2NwdW1hcCIsIE9fUkRPTkxZKSA9 IDMNCj4gPiBvcGVuYXQoQVRfRkRDV0QsICIvc3lzL2RldmljZXMvc3lzdGVtL25vZGUvbm9kZTIv Y3B1bWFwIiwgT19SRE9OTFkpID0gMw0KPiA+IG9wZW5hdChBVF9GRENXRCwgIi9zeXMvZGV2aWNl cy9zeXN0ZW0vbm9kZS9ub2RlMy9jcHVtYXAiLCBPX1JET05MWSkgPSAzDQo+ID4NCj4gPiBJZiB3 ZSBtb3ZlIHRvIGJpbmFyeSwgaXQgbWVhbnMgd2UgaGF2ZSB0byBjaGFuZ2UgdGhvc2UgYXBwbGlj YXRpb25zLg0KPiANCj4gSSB0aG91Z2h0IEdyZWcgd2FzIHNheWluZyB0byB1c2luZyBhIHN5c2Zz IGJpbmFyeSBhdHRyaWJ1dGUgdXNpbmcNCj4gc29tZXRoaW5nIGxpa2UgbGlrZSBzeXNmc19jcmVh dGVfYmluX2ZpbGUoKS4gIFRob3NlIGRvbid0IGhhdmUgdGhlDQo+IFBBR0VfU0laRSBsaW1pdGF0 aW9uLiAgQnV0LCB0aGVyZSdzIGFsc28gbm90aGluZyB0byBrZWVwIHVzIGZyb20gc3Bld2luZw0K PiBuaWNlIGh1bWFuLXJlYWRhYmxlIHRleHQgdmlhIHRoZSAiYmluYXJ5IiBmaWxlLg0KPiANCj4g V2UgZG9uJ3QgbmVlZCB0byBjaGFuZ2UgdGhlIGZpbGUgZm9ybWF0LCBqdXN0IHRoZSBpbnRlcm5h bCBrZXJuZWwgQVBJDQo+IHRoYXQgd2UgcHJvZHVjZSB0aGUgZmlsZXMgd2l0aC4NCg0KRGF2ZSwg dGhhbmtzIGZvciBjbGFyaWZpY2F0aW9uLiBTb3VuZHMgYSB3YXkgdG8gZ28uDQoNCkJhcnJ5DQo=