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=-2.3 required=3.0 tests=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 E34FDC433E2 for ; Tue, 19 May 2020 15:25:18 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 9FF812075F for ; Tue, 19 May 2020 15:25:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9FF812075F 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 EC16B900003; Tue, 19 May 2020 11:25:17 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id E724D900002; Tue, 19 May 2020 11:25:17 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D87F4900003; Tue, 19 May 2020 11:25:17 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0162.hostedemail.com [216.40.44.162]) by kanga.kvack.org (Postfix) with ESMTP id C37C3900002 for ; Tue, 19 May 2020 11:25:17 -0400 (EDT) Received: from smtpin05.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 70CFDC5AC for ; Tue, 19 May 2020 15:25:17 +0000 (UTC) X-FDA: 76833842274.05.train38_8573cec348b4b X-HE-Tag: train38_8573cec348b4b X-Filterd-Recvd-Size: 2322 Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by imf25.hostedemail.com (Postfix) with ESMTP for ; Tue, 19 May 2020 15:25:16 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id D5A5FB275; Tue, 19 May 2020 15:25:17 +0000 (UTC) Date: Tue, 19 May 2020 17:25:12 +0200 From: Joerg Roedel To: Andrew Morton Cc: Joerg Roedel , x86@kernel.org, hpa@zytor.com, Dave Hansen , Andy Lutomirski , Peter Zijlstra , rjw@rjwysocki.net, Arnd Bergmann , Steven Rostedt , Vlastimil Babka , Michal Hocko , Matthew Wilcox , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, Christoph Hellwig Subject: Re: [PATCH v3 2/7] mm/vmalloc: Track which page-table levels were modified Message-ID: <20200519152512.GO8135@suse.de> References: <20200515140023.25469-1-joro@8bytes.org> <20200515140023.25469-3-joro@8bytes.org> <20200515130142.4ca90ee590e9d8ab88497676@linux-foundation.org> <20200516125641.GK8135@suse.de> <20200518151828.ad3c714a29209b359e326ec4@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200518151828.ad3c714a29209b359e326ec4@linux-foundation.org> User-Agent: Mutt/1.10.1 (2018-07-13) 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 Mon, May 18, 2020 at 03:18:28PM -0700, Andrew Morton wrote: > On Sat, 16 May 2020 14:56:41 +0200 Joerg Roedel wrote: > --- a/mm/vmalloc.c~mm-vmalloc-track-which-page-table-levels-were-modified-fix > +++ a/mm/vmalloc.c > @@ -309,6 +309,9 @@ int map_kernel_range_noflush(unsigned lo > return err; > } while (pgd++, addr = next, addr != end); > > + if (mask & ARCH_PAGE_TABLE_SYNC_MASK) > + arch_sync_kernel_mappings(start, end); > + > return 0; > } Yes, this is the right call. > It would be nice to get all this (ie, linux-next) retested before we > send it upstream, please. Will do and report back. Thanks, Joerg