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=-0.8 required=3.0 tests=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 2A3ECCA9EC1 for ; Mon, 28 Oct 2019 19:59:31 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id F2554204FD for ; Mon, 28 Oct 2019 19:59:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F2554204FD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id A921C6B0005; Mon, 28 Oct 2019 15:59:30 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A43F26B0006; Mon, 28 Oct 2019 15:59:30 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 959726B0007; Mon, 28 Oct 2019 15:59:30 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0024.hostedemail.com [216.40.44.24]) by kanga.kvack.org (Postfix) with ESMTP id 7214A6B0005 for ; Mon, 28 Oct 2019 15:59:30 -0400 (EDT) Received: from smtpin23.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with SMTP id CB9A1181AEF1A for ; Mon, 28 Oct 2019 19:59:29 +0000 (UTC) X-FDA: 76094258058.23.brick91_6fdd9d7cd2b58 X-HE-Tag: brick91_6fdd9d7cd2b58 X-Filterd-Recvd-Size: 4412 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by imf13.hostedemail.com (Postfix) with ESMTP for ; Mon, 28 Oct 2019 19:59:28 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 28 Oct 2019 12:59:27 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.68,241,1569308400"; d="scan'208";a="224740400" Received: from orsmsx107.amr.corp.intel.com ([10.22.240.5]) by fmsmga004.fm.intel.com with ESMTP; 28 Oct 2019 12:59:26 -0700 Received: from orsmsx112.amr.corp.intel.com ([169.254.3.185]) by ORSMSX107.amr.corp.intel.com ([169.254.1.115]) with mapi id 14.03.0439.000; Mon, 28 Oct 2019 12:59:26 -0700 From: "Edgecombe, Rick P" To: "kirill@shutemov.name" , "peterz@infradead.org" CC: "adobriyan@gmail.com" , "linux-kernel@vger.kernel.org" , "rppt@kernel.org" , "rostedt@goodmis.org" , "jejb@linux.ibm.com" , "tglx@linutronix.de" , "linux-mm@kvack.org" , "dave.hansen@linux.intel.com" , "linux-api@vger.kernel.org" , "x86@kernel.org" , "akpm@linux-foundation.org" , "hpa@zytor.com" , "mingo@redhat.com" , "luto@kernel.org" , "rppt@linux.ibm.com" , "bp@alien8.de" , "arnd@arndb.de" Subject: Re: [PATCH RFC] mm: add MAP_EXCLUSIVE to create exclusive user mappings Thread-Topic: [PATCH RFC] mm: add MAP_EXCLUSIVE to create exclusive user mappings Thread-Index: AQHVjbnGcEUDTQSU2UGbl4rq5h7p8qdw7lIA Date: Mon, 28 Oct 2019 19:59:25 +0000 Message-ID: <0a35765f7412937c1775daa05177b20113760aee.camel@intel.com> References: <1572171452-7958-1-git-send-email-rppt@kernel.org> <1572171452-7958-2-git-send-email-rppt@kernel.org> <20191028123124.ogkk5ogjlamvwc2s@box> <20191028130018.GA7192@rapoport-lnx> <20191028131623.zwuwguhm4v4s5imh@box> <20191028135521.GB4097@hirez.programming.kicks-ass.net> In-Reply-To: <20191028135521.GB4097@hirez.programming.kicks-ass.net> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.54.75.11] Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: T24gTW9uLCAyMDE5LTEwLTI4IGF0IDE0OjU1ICswMTAwLCBQZXRlciBaaWpsc3RyYSB3cm90ZToN Cj4gT24gTW9uLCBPY3QgMjgsIDIwMTkgYXQgMDQ6MTY6MjNQTSArMDMwMCwgS2lyaWxsIEEuIFNo dXRlbW92IHdyb3RlOg0KPiANCj4gPiBJIHRoaW5rIGFjdGl2ZSB1c2Ugb2YgdGhpcyBmZWF0dXJl IHdpbGwgbGVhZCB0byBwZXJmb3JtYW5jZSBkZWdyYWRhdGlvbiBvZg0KPiA+IHRoZSBzeXN0ZW0g d2l0aCB0aW1lLg0KPiA+IA0KPiA+IFNldHRpbmcgYSBzaW5nbGUgNGsgcGFnZSBub24tcHJlc2Vu dCBpbiB0aGUgZGlyZWN0IG1hcHBpbmcgd2lsbCByZXF1aXJlDQo+ID4gc3BsaXR0aW5nIDJNIG9y IDFHIHBhZ2Ugd2UgdXN1YWxseSBtYXAgZGlyZWN0IG1hcHBpbmcgd2l0aC4gQW5kIGl0J3Mgb25l DQo+ID4gd2F5IHJvYWQuIFdlIGRvbid0IGhhdmUgYW55IG1lY2hhbmlzbSB0byBtYXAgdGhlIG1l bW9yeSB3aXRoIGh1Z2UgcGFnZQ0KPiA+IGFnYWluIGFmdGVyIHRoZSBhcHBsaWNhdGlvbiBoYXMg ZnJlZWQgdGhlIHBhZ2UuDQo+IA0KPiBSaWdodCwgd2UgcmVjZW50bHkgaGFkIGEgJ2J1Zycgd2hl cmUgZnRyYWNlIHRyaWdnZXJlZCBzb21ldGhpbmcgbGlrZQ0KPiB0aGlzIGFuZCBmYWNlYm9vayBy YW4gaW50byBpdCBhcyBhIHBlcmZvcm1hbmNlIHJlZ3Jlc3Npb24uIFNvIHllcywgdGhpcw0KPiBp cyBhIHJlYWwgY29uY2Vybi4NCg0KRG9uJ3QgZS9jQlBGIGZpbHRlcnMgYWxzbyBicmVhayB0aGUg ZGlyZWN0IG1hcCBkb3duIHRvIDRrIHBhZ2VzIHdoZW4gY2FsbGluZw0Kc2V0X21lbW9yeV9ybygp IG9uIHRoZSBmaWx0ZXIgZm9yIDY0IGJpdCB4ODYgYW5kIGFybT8NCg0KSSd2ZSBiZWVuIHdvbmRl cmluZyBpZiB0aGUgcGFnZSBhbGxvY2F0b3Igc2hvdWxkIG1ha2Ugc29tZSBlZmZvcnQgdG8gZmlu ZCBhDQpicm9rZW4gZG93biBwYWdlIGZvciBhbnl0aGluZyB0aGF0IGNhbiBiZSBrbm93biB3aWxs IGhhdmUgZGlyZWN0IG1hcCBwZXJtaXNzaW9ucw0KY2hhbmdlZCAob3IgaWYgaXQgYWxyZWFkeSBn cm91cHMgdGhlbSBzb21laG93KS4gQnV0IGFsc28sIHdoeSBhbnkgcG90ZW50aWFsDQpzbG93ZG93 biBvZiA0ayBwYWdlcyBvbiB0aGUgZGlyZWN0IG1hcCBoYXNuJ3QgYmVlbiBub3RpY2VkIGZvciBh cHBzIHRoYXQgZG8gYQ0KbG90IG9mIGluc2VydGlvbnMgYW5kIHJlbW92YWxzIG9mIEJQRiBmaWx0 ZXJzLCBpZiB0aGlzIGlzIGluZGVlZCB0aGUgY2FzZS4NCg0KDQo=