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[209.132.180.67]) by mx.google.com with ESMTP id l21si4501960oic.126.2020.03.09.13.08.58; Mon, 09 Mar 2020 13:09:10 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=XEMMVrYM; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726536AbgCIUHE (ORCPT + 99 others); Mon, 9 Mar 2020 16:07:04 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:36530 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726384AbgCIUHD (ORCPT ); Mon, 9 Mar 2020 16:07:03 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1583784422; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ftWHEpSAUbk0eoJjmPg+C+QzhYo5sgkwqXSro3PQIsQ=; b=XEMMVrYMaZc+g9NvBN6kVZQXlFP2SPCMPESWlTn2YSGZMLgX0obSMrpCUyzxdTAu31RZ1I fu3cRyyCG4Z5UBqgYbFX4osHOkIWcgh0DrB4WbiuxhVO78LHGwMLUZ7/inSuik/J93Hu8q pDgOUPlXyIuDHA1LKD6mBcfPiyUYlFw= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-394-ikgYpv8ZNqKPibZ96WJ9dA-1; Mon, 09 Mar 2020 16:07:00 -0400 X-MC-Unique: ikgYpv8ZNqKPibZ96WJ9dA-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 131001005509; Mon, 9 Mar 2020 20:06:57 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 730E35D9CA; Mon, 9 Mar 2020 20:06:56 +0000 (UTC) Received: from zmail19.collab.prod.int.phx2.redhat.com (zmail19.collab.prod.int.phx2.redhat.com [10.5.83.22]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 53F4486A04; Mon, 9 Mar 2020 20:06:54 +0000 (UTC) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: base64 From: David Hildenbrand MIME-Version: 1.0 Subject: Re: [PATCH RESEND v6 00/16] mm: Page fault enhancements Date: Mon, 9 Mar 2020 16:06:54 -0400 (EDT) Message-Id: References: <20200309195100.GD4206@xz-x1> Cc: David Hildenbrand , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrea Arcangeli , Martin Cracauer , Linus Torvalds , Mike Rapoport , "Kirill A . Shutemov" , Johannes Weiner , "Dr . David Alan Gilbert" , Bobby Powers , Maya Gokhale , Jerome Glisse , Mike Kravetz , Matthew Wilcox , Marty McFadden , Mel Gorman , Hugh Dickins , Brian Geffon , Denis Plotnikov , Pavel Emelyanov In-Reply-To: <20200309195100.GD4206@xz-x1> To: Peter Xu , Andrea Arcangeli Thread-Topic: Page fault enhancements Thread-Index: VkIGmTyFztzfGbEHyyEMiVtHfLEZng== X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org DQoNCj4gQW0gMDkuMDMuMjAyMCB1bSAyMDo1MSBzY2hyaWViIFBldGVyIFh1IDxwZXRlcnhAcmVk aGF0LmNvbT46DQo+IA0KPiDvu79PbiBTdW4sIE1hciAwOCwgMjAyMCBhdCAwMToxMjozNFBNICsw MTAwLCBEYXZpZCBIaWxkZW5icmFuZCB3cm90ZToNCj4+IFsuLi5dDQo+PiANCj4+PiBZZXMsIElJ VUMgdGhlIHJhY2UgY2FuIGhhcHBlbiBsaWtlIHRoaXMgaW4geW91ciBiZWxvdyB0ZXN0Og0KPj4+ IA0KPj4+ICAgICBtYWluIHRocmVhZCAgICAgICAgICB1ZmZkIHRocmVhZCAgICAgICAgICAgICBk aXNnYXJkIHRocmVhZA0KPj4+ICAgICA9PT09PT09PT09PSAgICAgICAgICA9PT09PT09PT09PSAg ICAgICAgICAgICA9PT09PT09PT09PT09PQ0KPj4+ICAgICBhY2Nlc3MgcGFnZQ0KPj4+ICAgICAg IHVmZmQgcGFnZSBmYXVsdA0KPj4+ICAgICAgICAgd2FpdCBmb3IgcGFnZQ0KPj4+ICAgICAgICAg ICAgICAgICAgICAgICAgICBVRkZESU9fWkVST0NPUFkNCj4+PiAgICAgICAgICAgICAgICAgICAg ICAgICAgICBwdXQgYSBwYWdlIFAgdGhlcmUNCj4+PiAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgTUFEVl9ET05UTkVFRCBvbiBQDQo+Pj4gICAgICAgICAg ICAgICAgICAgICAgICAgICAgd2FrZXVwIG1haW4gdGhyZWFkDQo+Pj4gICAgICAgICByZXR1cm4g ZnJvbSBmYXVsdA0KPj4+ICAgICAgIHBhZ2Ugc3RpbGwgbWlzc2luZw0KPj4+ICAgICAgIHVmZmQg cGFnZSBmYXVsdCBhZ2Fpbg0KPj4+ICAgICAgICh3aXRob3V0IEFMTE9XX1JFVFJZKQ0KPj4+ICAg ICAgIC0tPiBTSUdCVVMuDQo+PiANCj4+IEV4YWN0bHkhDQo+PiANCj4+Pj4gQ2FuIHdlIHBsZWFz ZSBoYXZlIGEgd2F5IHRvIGlkZW50aWZ5IHRoYXQgdGhpcyAiZmVhdHVyZSIgaXMgYXZhaWxhYmxl Pw0KPj4+PiBJJ2QgYXBwcmVjaWF0ZSBhIG5ldyByZWFkLW9ubHkgVUZGRF9GRUFUXyAsIHNvIHdl IGNhbiBkZXRlY3QgdGhpcyBmcm9tDQo+Pj4+IHVzZXIgc3BhY2UgZWFzaWx5IGFuZCB1c2UgY29u Y3VycmVudCBkaXNjYXJkcyB3aXRob3V0IGNyYXNoaW5nIG91ciBhcHBsaWNhdGlvbnMuDQo+Pj4g DQo+Pj4gSSdtIG5vdCBzdXJlIGhvdyBvdGhlcnMgdGhpbmsgYWJvdXQgaXQsIGJ1dCB0byBtZSB0 aGlzIHN0aWxsIGZlbGxzDQo+Pj4gaW50byB0aGUgYnVja2V0IG9mICJzb2x2aW5nIGFuIGV4aXN0 aW5nIHByb2JsZW0iIHJhdGhlciB0aGFuIGENCj4+PiBmZWF0dXJlLiAgQWxzbyBub3RlIHRoYXQg dGhpcyBzaG91bGQgY2hhbmdlIHRoZSBiZWhhdmlvciBmb3IgdGhlIHBhZ2UNCj4+PiBmYXVsdCBs b2dpYyBpbiBnZW5lcmFsLCByYXRoZXIgdGhhbiBhbiB1ZmZkLW9ubHkgY2hhbmdlLiBTbyBJJ20g YWxzbw0KPj4+IG5vdCBzdXJlIHdoZXRoZXIgVUZGRF9GRUFUXyogc3VpdGVzIGhlcmUgZXZlbiBp ZiB3ZSB3YW50IGl0Lg0KPj4gDQo+PiBTbywgYXJlIHdlIHBsYW5uaW5nIG9uIGJhY2twb3J0aW5n IHRoaXMgdG8gc3RhYmxlIGtlcm5lbHM/DQo+IA0KPiBJIGRvbid0IGhhdmUgYSBwbGFuIHNvIGZh ci4gIEknbSBzdGlsbCBhdCB0aGUgcGhhc2UgdG8gb25seSB3b3JyeQ0KPiBhYm91dCB3aGV0aGVy IGl0IGNhbiBiZSBhdCBsZWFzdCBtZXJnZWQgaW4gbWFzdGVyLi4gOikNCj4gDQo+IEkgd291bGQg dGhpbmsgaXQgd29uJ3Qgd29ydGggaXQgdG8gYmFja3BvcnQgdGhpcyB0byBzdGFibGVzIHRob3Vn aCwNCj4gY29uc2lkZXJpbmcgdGhhdCBpdCBjb3VsZCBwb3RlbnRpYWxseSBjaGFuZ2UgcXVpdGUg YSBiaXQgZm9yIGZhdWx0aW5nDQo+IHByb2NlZHVyZXMsIGFuZCBhZnRlciBhbGwgdGhlIGlzc3Vl cyB3ZSdyZSBmaXhpbmcgc2hvdWxkbid0IGJlIGNvbW1vbg0KPiB0byBnZW5lcmFsIHVzZXJzLg0K PiANCj4+IA0KPj4gSW1hZ2luZSB1c2luZyB0aGlzIGluIFFFTVUvS1ZNIHRvIGFsbG93IGRpc2Nh cmRzIChlLmcuLCBiYWxsb29uDQo+PiBpbmZsYXRpb24pIHdoaWxlIHBvc3Rjb3B5IGlzIGFjdGl2 ZSAuIFlvdSBjZXJ0YWlubHkgZG9uJ3Qgd2FudCByYW5kb20NCj4+IGd1ZXN0IGNyYXNoZXMuIFNv IGVpdGhlciwgd2UgdHJlYXQgdGhpcyBhcyBhIGZpeCAoYW5kIGJhY2twb3J0KSBvciBhcyBhDQo+ PiBjaGFuZ2UgaW4gYmVoYXZpb3IvZmVhdHVyZS4NCj4gDQo+IEkgdGhpbmsgd2UgZG9uJ3QgbmVl ZCB0byB3b3JyeSBvbiB0aGF0IC0gUUVNVSB3aWxsIHByb2hpYml0IGJhbGxvb25pbmcNCj4gZHVy aW5nIHBvc3Rjb3B5IHN0YXJ0aW5nIGZyb20gdGhlIGZpcnN0IGRheS4gIEZlZWwgZnJlZSB0byBz ZWUgUUVNVQ0KPiBjb21taXQgMzcxZmY1YTNmMDRjZDcgKCJJbmhpYml0IGJhbGxvb25pbmcgZHVy aW5nIHBvc3Rjb3B5IikuDQoNCkltYWdpbmUgSSB3YW50IHRvIGNoYW5nZSB0aGF0IG9yIGltYWdp bmUgSSBoYXZlIGFub3RoZXIgdXNlciB0aGF0IGhlYXZpbHkgZGVwZW5kcyBvbiBzdWNoIHJhY2Vz IHRvIG5ldmVyIGhhcHBlbi4NCg0KSU9XIEkgd2FudCB0byBrbm93IGZvciBzdXJlIGlmIG15IGFw cGxpY2F0aW9uIGNhbiBjcmFzaCBvciBub3QuDQoNCkBBbmRyZWEgd2hhdCBhcmUgeW91ciB0aG91 Z2h0cyBvbiBhIG5ldyBmZWF0dXJlIGZsYWcgdG8gaWRlbnRpZnkgdGhpcyBiZWhhdmlvcj8NCg0K