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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 C5E27C433E3 for ; Fri, 21 Aug 2020 10:23:47 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id A2C0320732 for ; Fri, 21 Aug 2020 10:23:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A2C0320732 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 57D8B6B0093; Fri, 21 Aug 2020 06:23:47 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 5553D6B0096; Fri, 21 Aug 2020 06:23:47 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 492538D0006; Fri, 21 Aug 2020 06:23:47 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0121.hostedemail.com [216.40.44.121]) by kanga.kvack.org (Postfix) with ESMTP id 30A716B0093 for ; Fri, 21 Aug 2020 06:23:47 -0400 (EDT) Received: from smtpin25.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id EB459181AC9C6 for ; Fri, 21 Aug 2020 10:23:46 +0000 (UTC) X-FDA: 77174189652.25.wound40_240842527038 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin25.hostedemail.com (Postfix) with ESMTP id 97D521804E3A0 for ; Fri, 21 Aug 2020 10:23:46 +0000 (UTC) X-HE-Tag: wound40_240842527038 X-Filterd-Recvd-Size: 1652 Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by imf29.hostedemail.com (Postfix) with ESMTP for ; Fri, 21 Aug 2020 10:23:46 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id C0D28AE38; Fri, 21 Aug 2020 10:24:12 +0000 (UTC) Date: Fri, 21 Aug 2020 12:23:43 +0200 From: Joerg Roedel To: Chris Wilson Cc: linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-mm@kvack.org, Pavel Machek , Andrew Morton , Linus Torvalds , Dave Airlie , Joonas Lahtinen , Rodrigo Vivi , David Vrabel , stable@vger.kernel.org Subject: Re: [PATCH] mm: Track page table modifications in __apply_to_page_range() construction Message-ID: <20200821102343.GI3354@suse.de> References: <20200821085011.28878-1-chris@chris-wilson.co.uk> <20200821100902.GG3354@suse.de> <159800481672.29194.17217138842959831589@build.alporthouse.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <159800481672.29194.17217138842959831589@build.alporthouse.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-Rspamd-Queue-Id: 97D521804E3A0 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam04 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: On Fri, Aug 21, 2020 at 11:13:36AM +0100, Chris Wilson wrote: > We need to store the initial addr, as here addr == end [or earlier on > earlier], so range is (start, addr). Right, I missed that, thanks for pointing it out.