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=-5.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 44AFFC2BA19 for ; Mon, 13 Apr 2020 18:36:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 25E88206DA for ; Mon, 13 Apr 2020 18:36:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="FL96mpKR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733005AbgDMSf6 (ORCPT ); Mon, 13 Apr 2020 14:35:58 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:26203 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727904AbgDMSf5 (ORCPT ); Mon, 13 Apr 2020 14:35:57 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1586802956; 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: in-reply-to:in-reply-to:references:references; bh=j0tliWDeiVmQwDrsWSHtumkvzo85k+vRaxnPj1BBihg=; b=FL96mpKRFLMFEIECKnwjW2SEKPlLbuZ5Fd3oHfYcqTiUzIatneachN44CsT2vXdaBSbEHE iob+CCCJKPDUUIgzwZgrhxLWvBr3XKzrxz1yR5Dfv51hGTfDa5R/rLZOydFRzXRZTjRPxS IhD5epIyDtmAVZEn+CgHJH//DN6iyzA= 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-212-Hk4awqugNlyMDNTWU23dQA-1; Mon, 13 Apr 2020 14:35:54 -0400 X-MC-Unique: Hk4awqugNlyMDNTWU23dQA-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 38BBB802560; Mon, 13 Apr 2020 18:35:53 +0000 (UTC) Received: from mail (ovpn-112-243.rdu2.redhat.com [10.10.112.243]) by smtp.corp.redhat.com (Postfix) with ESMTPS id DE72F99DEE; Mon, 13 Apr 2020 18:35:49 +0000 (UTC) Date: Mon, 13 Apr 2020 14:35:49 -0400 From: Andrea Arcangeli To: Peter Xu Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Andrew Morton , Hillf Danton , Naresh Kamboju , kernel test robot Subject: Re: [PATCH] mm/userfaultfd: Disable userfaultfd-wp on x86_32 Message-ID: <20200413183549.GA758@redhat.com> References: <20200413141608.109211-1-peterx@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200413141608.109211-1-peterx@redhat.com> User-Agent: Mutt/1.13.5 (2020-03-28) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Apr 13, 2020 at 10:16:08AM -0400, Peter Xu wrote: > Userfaultfd-wp is not yet working on 32bit hosts, but it's > accidentally enabled previously. Disable it. > > Fixes: 5a281062af1d ("userfaultfd: wp: add WP pagetable tracking to x86") > Cc: Andrew Morton > Cc: Andrea Arcangeli > Cc: Hillf Danton > Reported-by: Naresh Kamboju > Reported-by: kernel test robot > Tested-by: Naresh Kamboju > Signed-off-by: Peter Xu > --- > arch/x86/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Reviewed-by: Andrea Arcangeli Thanks, Andrea