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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 58AE9C433F5 for ; Thu, 16 Sep 2021 15:45:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3809B6124B for ; Thu, 16 Sep 2021 15:45:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239624AbhIPPql (ORCPT ); Thu, 16 Sep 2021 11:46:41 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.86.151]:56746 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239386AbhIPPqk (ORCPT ); Thu, 16 Sep 2021 11:46:40 -0400 Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-73-hC-drbRkMRy1ELWZmsZWpA-1; Thu, 16 Sep 2021 16:45:17 +0100 X-MC-Unique: hC-drbRkMRy1ELWZmsZWpA-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) by AcuMS.aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Thu, 16 Sep 2021 16:45:16 +0100 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.023; Thu, 16 Sep 2021 16:45:16 +0100 From: David Laight To: 'Kefeng Wang' , Marco Elver , "akpm@linux-foundation.org" CC: "glider@google.com" , "dvyukov@google.com" , "jannh@google.com" , "mark.rutland@arm.com" , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "kasan-dev@googlegroups.com" , "hdanton@sina.com" Subject: RE: [PATCH v2 2/3] kfence: maximize allocation wait timeout duration Thread-Topic: [PATCH v2 2/3] kfence: maximize allocation wait timeout duration Thread-Index: AQHXqpka6XGQNXcc7UiTXkG8ZB1Ri6umzYQg Date: Thu, 16 Sep 2021 15:45:16 +0000 Message-ID: <858909f98f33478891056a840ad68b9f@AcuMS.aculab.com> References: <20210421105132.3965998-1-elver@google.com> <20210421105132.3965998-3-elver@google.com> <6c0d5f40-5067-3a59-65fa-6977b6f70219@huawei.com> In-Reply-To: Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogS2VmZW5nIFdhbmcNCj4gU2VudDogMTYgU2VwdGVtYmVyIDIwMjEgMDI6MjENCj4gDQo+ IFdlIGZvdW5kIGtmZW5jZV90ZXN0IHdpbGwgZmFpbHPCoCBvbiBBUk02NCB3aXRoIHRoaXMgcGF0 Y2ggd2l0aC93aXRob3V0DQo+IENPTkZJR19ERVRFQ1RfSFVOR19UQVNLLA0KPiANCj4gQW55IHRo b3VnaHQgPw0KPiANCi4uLg0KPiA+PiDCoMKgwqDCoMKgIC8qIEVuYWJsZSBzdGF0aWMga2V5LCBh bmQgYXdhaXQgYWxsb2NhdGlvbiB0byBoYXBwZW4uICovDQo+ID4+IMKgwqDCoMKgwqAgc3RhdGlj X2JyYW5jaF9lbmFibGUoJmtmZW5jZV9hbGxvY2F0aW9uX2tleSk7DQo+ID4+IMKgIC3CoMKgwqAg d2FpdF9ldmVudF90aW1lb3V0KGFsbG9jYXRpb25fd2FpdCwgYXRvbWljX3JlYWQoJmtmZW5jZV9h bGxvY2F0aW9uX2dhdGUpLCBIWik7DQo+ID4+ICvCoMKgwqAgaWYgKHN5c2N0bF9odW5nX3Rhc2tf dGltZW91dF9zZWNzKSB7DQo+ID4+ICvCoMKgwqDCoMKgwqDCoCAvKg0KPiA+PiArwqDCoMKgwqDC oMKgwqDCoCAqIER1cmluZyBsb3cgYWN0aXZpdHkgd2l0aCBubyBhbGxvY2F0aW9ucyB3ZSBtaWdo dCB3YWl0IGENCj4gPj4gK8KgwqDCoMKgwqDCoMKgwqAgKiB3aGlsZTsgbGV0J3MgYXZvaWQgdGhl IGh1bmcgdGFzayB3YXJuaW5nLg0KPiA+PiArwqDCoMKgwqDCoMKgwqDCoCAqLw0KPiA+PiArwqDC oMKgwqDCoMKgwqAgd2FpdF9ldmVudF90aW1lb3V0KGFsbG9jYXRpb25fd2FpdCwgYXRvbWljX3Jl YWQoJmtmZW5jZV9hbGxvY2F0aW9uX2dhdGUpLA0KPiA+PiArwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgIHN5c2N0bF9odW5nX3Rhc2tfdGltZW91dF9zZWNzICogSFogLyAyKTsN Cj4gPj4gK8KgwqDCoCB9IGVsc2Ugew0KPiA+PiArwqDCoMKgwqDCoMKgwqAgd2FpdF9ldmVudChh bGxvY2F0aW9uX3dhaXQsIGF0b21pY19yZWFkKCZrZmVuY2VfYWxsb2NhdGlvbl9nYXRlKSk7DQo+ ID4+ICvCoMKgwqAgfQ0KPiA+PiDCoCDCoMKgwqDCoMKgIC8qIERpc2FibGUgc3RhdGljIGtleSBh bmQgcmVzZXQgdGltZXIuICovDQo+ID4+IMKgwqDCoMKgwqAgc3RhdGljX2JyYW5jaF9kaXNhYmxl KCZrZmVuY2VfYWxsb2NhdGlvbl9rZXkpOw0KDQpJdCBoYXMgcmVwbGFjZWQgYSB3YWl0X2V2ZW50 X3RpbWVvdXQoKSB3aXRoIGEgd2FpdF9ldmVudCgpLg0KDQpUaGF0IHByb2JhYmx5IGlzbid0IGlu dGVuZGVkLg0KQWx0aG91Z2ggSSdkIGV4cGVjdCB0aGVpciB0byBiZSBzb21lIHRlc3QgZm9yIHRo ZSB3YWl0IGJlaW5nDQpzaWduYWxsZWQgb3IgdGltaW5nIG91dC4NCg0KCURhdmlkDQoNCi0NClJl Z2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJhbWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0 b24gS2V5bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykN Cg==