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[23.128.96.18]) by mx.google.com with ESMTP id d2si6939765eds.533.2020.10.05.04.24.57; Mon, 05 Oct 2020 04:25:20 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=aculab.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725996AbgJELVm (ORCPT + 99 others); Mon, 5 Oct 2020 07:21:42 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([207.82.80.151]:33921 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725914AbgJELVl (ORCPT ); Mon, 5 Oct 2020 07:21:41 -0400 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-238-7mZ020ZhOLWxcHxA0cpIlg-1; Mon, 05 Oct 2020 12:21:38 +0100 X-MC-Unique: 7mZ020ZhOLWxcHxA0cpIlg-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Mon, 5 Oct 2020 12:21:37 +0100 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Mon, 5 Oct 2020 12:21:37 +0100 From: David Laight To: 'David Hildenbrand' , Topi Miettinen , Michal Hocko CC: "akpm@linux-foundation.org" , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" Subject: RE: [PATCH] mm: optionally disable brk() Thread-Topic: [PATCH] mm: optionally disable brk() Thread-Index: AQHWmv2jTpq5FewPDUy63nD4f9riL6mI3SWA Date: Mon, 5 Oct 2020 11:21:37 +0000 Message-ID: <5fb32353b1964299809fce0c7579a092@AcuMS.aculab.com> References: <20201002171921.3053-1-toiwoton@gmail.com> <653873ef-2a57-37e0-1ac3-fba763652b35@redhat.com> <2a0f5ade-d770-c36e-50bc-ff0c8e9dacbf@gmail.com> <20201005061248.GN4555@dhcp22.suse.cz> <888e62e0-3979-207b-c516-ddfc6b9f3345@redhat.com> <4d325e3e-3139-eded-6781-435fb04fb915@gmail.com> <9dc586f4-38f0-7956-0ab6-bd7921491606@redhat.com> In-Reply-To: <9dc586f4-38f0-7956-0ab6-bd7921491606@redhat.com> 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 RnJvbTogRGF2aWQgSGlsZGVuYnJhbmQNCj4gU2VudDogMDUgT2N0b2JlciAyMDIwIDEwOjU1DQou Li4NCj4gPiBJZiBoYXJkZW5pbmcgYW5kIGNvbXBhdGliaWxpdHkgYXJlIHNlZW4gYXMgdHJhZGVv ZmZzLCBwZXJoYXBzIHRoZXJlDQo+ID4gY291bGQgYmUgYSB0b3AgbGV2ZWwgY29uZmlnIGNob2lj ZSAoQ09ORklHX0hBUkRFTklOR19UUkFERU9GRikgZm9yIHRoaXMuDQo+ID4gSXQgd291bGQgaGF2 ZSBvcHRpb25zDQo+ID4gLSAiY29tcGF0aWJpbGl0eSIgKGRlZmF1bHQpIHRvIGdlYXIgcXVlc3Rp b25zIGZvciBtYXhpbXVtIGNvbXBhdGliaWxpdHksDQo+ID4gZGVzZWxlY3RpbmcgYW55IGhhcmRl bmluZyBvcHRpb25zIHdoaWNoIHJlZHVjZSBjb21wYXRpYmlsaXR5DQo+ID4gLSAiaGFyZGVuaW5n IiB0byBnZWFyIHF1ZXN0aW9ucyBmb3IgbWF4aW11bSBoYXJkZW5pbmcsIGRlc2VsZWN0aW5nIGFu eQ0KPiA+IGNvbXBhdGliaWxpdHkgb3B0aW9ucyB3aGljaCByZWR1Y2UgaGFyZGVuaW5nDQo+ID4g LSAibm9uZS9tYW51YWwiOiBhc2sgYWxsIHF1ZXN0aW9ucyBsaWtlIGJlZm9yZQ0KPiANCj4gSSB0 aGluayB0aGUgZ2VuZXJhbCBkaXJlY3Rpb24gaXMgdG8gYXZvaWQgYW4gZXhwbG9kaW5nIHNldCBv ZiBjb25maWcNCj4gb3B0aW9ucy4gU28gaWYgdGhlcmUgaXNuJ3QgYSAqcmVhbCogZGVtYW5kLCBJ IGd1ZXNzIGdsdWluZyB0aGlzIHRvIGENCj4gc2luZ2xlIG9wdGlvbiAoIkNPTkZJR19TRUNVUklU WV9IQVJERU5JTkciKSBtaWdodCBiZSBnb29kIGVub3VnaC4NCg0KV291bGRuJ3QgdGhhdCBiZSBi ZXR0ZXIgYWNoaWV2ZWQgYnkgcnVuLXRpbWUgY2xvYmJlcmluZw0Kb2YgdGhlIHN5c2NhbGwgdmVj dG9ycz8NCg0KCURhdmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJhbWxl eSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0b24gS2V5bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0cmF0 aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykNCg==