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=-5.8 required=3.0 tests=BAYES_00,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 9F6A6C433DB for ; Fri, 19 Feb 2021 20:06:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6AAA564EB3 for ; Fri, 19 Feb 2021 20:06:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230015AbhBSUGf (ORCPT ); Fri, 19 Feb 2021 15:06:35 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:57944 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229803AbhBSUGd (ORCPT ); Fri, 19 Feb 2021 15:06:33 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1613765106; 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=RdrWHXNP81cMfcwVYdcPmRXG0LMOXCcx5D2s5+R9i9E=; b=GzLQ5nsRCsO/LGzymoklCo9Kn5gBnDPtXNNzxyrx3SMEs1fMBJCBXtUSY1Rwc2qxtuJYcL MaXdFZ+/PVSobrIWVgsZNd39aBIJeroNegCgc6xFGhZBYUyAs0aLuWpB6MarKpWNLt4F8i BX41FsCVzkFmcEuYmsuWPWwX8C0oiSk= 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-498-kbtrUWp-NLmwrTJzGZseGA-1; Fri, 19 Feb 2021 15:05:02 -0500 X-MC-Unique: kbtrUWp-NLmwrTJzGZseGA-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 E211F80364B; Fri, 19 Feb 2021 20:04:58 +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 BB7325D9C2; Fri, 19 Feb 2021 20:04:58 +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 6DDEA4A7C6; Fri, 19 Feb 2021 20:04:58 +0000 (UTC) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: base64 From: David Hildenbrand MIME-Version: 1.0 Subject: Re: [PATCH RFC] mm/madvise: introduce MADV_POPULATE to prefault/prealloc memory Date: Fri, 19 Feb 2021 15:04:58 -0500 (EST) Message-Id: <382EFE9E-86CB-4C0C-B0C8-4EAE8A5281D9@redhat.com> References: <20210219192310.GI6669@xz-x1> Cc: David Hildenbrand , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Andrew Morton , Arnd Bergmann , Michal Hocko , Oscar Salvador , Matthew Wilcox , Andrea Arcangeli , Minchan Kim , Jann Horn , Jason Gunthorpe , Dave Hansen , Hugh Dickins , Rik van Riel , "Michael S . Tsirkin" , "Kirill A . Shutemov" , Vlastimil Babka , Richard Henderson , Ivan Kokshaysky , Matt Turner , Thomas Bogendoerfer , "James E.J. Bottomley" , Helge Deller , Chris Zankel , Max Filippov , linux-alpha@vger.kernel.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-arch@vger.kernel.org In-Reply-To: <20210219192310.GI6669@xz-x1> To: Peter Xu Thread-Topic: mm/madvise: introduce MADV_POPULATE to prefault/prealloc memory Thread-Index: 1GhocwMB+h3nwFkPzKnrEoxU5kTmpw== X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org DQo+IEFtIDE5LjAyLjIwMjEgdW0gMjA6MjMgc2NocmllYiBQZXRlciBYdSA8cGV0ZXJ4QHJlZGhh dC5jb20+Og0KPiANCj4g77u/T24gRnJpLCBGZWIgMTksIDIwMjEgYXQgMDY6MTM6NDdQTSArMDEw MCwgRGF2aWQgSGlsZGVuYnJhbmQgd3JvdGU6DQo+Pj4gT24gMTkuMDIuMjEgMTc6MzEsIFBldGVy IFh1IHdyb3RlOg0KPj4+IE9uIEZyaSwgRmViIDE5LCAyMDIxIGF0IDA5OjIwOjE2QU0gKzAxMDAs IERhdmlkIEhpbGRlbmJyYW5kIHdyb3RlOg0KPj4+PiBPbiAxOC4wMi4yMSAyMzo1OSwgUGV0ZXIg WHUgd3JvdGU6DQo+Pj4+PiBIaSwgRGF2aWQsDQo+Pj4+PiANCj4+Pj4+IE9uIFdlZCwgRmViIDE3 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