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=-0.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 7211DC10F27 for ; Mon, 9 Mar 2020 20:07:06 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 2C41A2146E for ; Mon, 9 Mar 2020 20:07:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="IgjU44Ep" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2C41A2146E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id CCF3C6B0005; Mon, 9 Mar 2020 16:07:05 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C80896B0006; Mon, 9 Mar 2020 16:07:05 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B6E566B0007; Mon, 9 Mar 2020 16:07:05 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0135.hostedemail.com [216.40.44.135]) by kanga.kvack.org (Postfix) with ESMTP id 9CB236B0005 for ; Mon, 9 Mar 2020 16:07:05 -0400 (EDT) Received: from smtpin04.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 806C4180AD80F for ; Mon, 9 Mar 2020 20:07:05 +0000 (UTC) X-FDA: 76576907610.04.cent33_3ddf8943b4404 X-HE-Tag: cent33_3ddf8943b4404 X-Filterd-Recvd-Size: 6777 Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [205.139.110.120]) by imf21.hostedemail.com (Postfix) with ESMTP for ; Mon, 9 Mar 2020 20:07:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1583784424; 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=IgjU44Ep79M0SyijgKFYi8mnkxJ3s3EgEG1eglxHUf8KbmuAaIHZQS6yJOBcLRwBUPM+wL QHbRqHAeeSftB4B/ZDX7ntef8ZZ+UNwus2grhJYuznUXvnW1HP7iccAFQV90OCLVZwVxMG WA1oN4BnOvquTV+rM2rCASTa+gO0kiM= 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 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: 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