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=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 CC94CC3A5A1 for ; Thu, 22 Aug 2019 23:41:31 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A2D3E21848 for ; Thu, 22 Aug 2019 23:41:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="S2zZtZXJ"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="o8UdmRX9" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A2D3E21848 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Mime-Version:References:In-Reply-To: Message-Id:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=X8MAXoTO2WFUyYwL/0XSmrRF1moAwRbkTBc7E0dgaa8=; b=S2zZtZXJ1oCpSO UXNkCaqjApS3k7F8V/NNN2Y14owSNveSXyq4TW/RdJkdc0JYruHm18vOxYYYFj/abFrJzPvWV8/ym 9PV3w6vo/blpNK/vuBX9qvBlmx7SMdLVmDfe5FeQGLIhUHqmDwpIEg81UZV7udFwTnOm1E13AcJ6Y RRbwCMo0jmgNndGp1b3jS5aNJLguLWnyP8Sf1l/QyS/euaMsV6qLK/QtnUK/EagfKt6PHGuxViG1U 3MG3mpWUGA70YY8i5xXt1vz8k2YkvVjBqBlI5PVXTGHyMPZW/uvx0/xGh82hdWAD3NiEGjKd6cj58 eJPKSIjPUO/RP9Sfrcbg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i0whv-0005zy-8S; Thu, 22 Aug 2019 23:41:31 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1i0whs-0005zX-5i for linux-arm-kernel@lists.infradead.org; Thu, 22 Aug 2019 23:41:29 +0000 Received: from akpm3.svl.corp.google.com (unknown [104.133.8.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 684C121848; Thu, 22 Aug 2019 23:41:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566517286; bh=YtRCAC6fgsRgJnEx63ur5nyjptr+AEUs6gIrAbXRiQI=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=o8UdmRX97TswzWBvjk2gFJF6KO7BY2x+E967bHezsjBUP95XqFclydiiZxQDIWGNS /HK3TqMe1pG0vXyWjTqyWMiN6WOHRQ1slbrz8a4c6qtJJ6NDsk6SdUwK5hdhg43NJH om2HivuzvF1RXZajtMlOuiaXDG6/WAAxgrYZQZQg= Date: Thu, 22 Aug 2019 16:41:25 -0700 From: Andrew Morton To: Will Deacon Subject: Re: [PATCH v8 1/5] mm: untag user pointers in mmap/munmap/mremap/brk Message-Id: <20190822164125.acfb97de912996b2b9127c61@linux-foundation.org> In-Reply-To: <20190819162851.tncj4wpwf625ofg6@willie-the-truck> References: <20190815154403.16473-1-catalin.marinas@arm.com> <20190815154403.16473-2-catalin.marinas@arm.com> <20190819162851.tncj4wpwf625ofg6@willie-the-truck> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.32; x86_64-pc-linux-gnu) Mime-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190822_164128_235967_9AC91B51 X-CRM114-Status: GOOD ( 14.89 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, linux-doc@vger.kernel.org, Szabolcs Nagy , Catalin Marinas , Kevin Brodsky , Will Deacon , Dave P Martin , linux-mm@kvack.org, Andrey Konovalov , Vincenzo Frascino , Dave Hansen , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, 19 Aug 2019 17:28:51 +0100 Will Deacon wrote: > On Thu, Aug 15, 2019 at 04:43:59PM +0100, Catalin Marinas wrote: > > There isn't a good reason to differentiate between the user address > > space layout modification syscalls and the other memory > > permission/attributes ones (e.g. mprotect, madvise) w.r.t. the tagged > > address ABI. Untag the user addresses on entry to these functions. > > > > Signed-off-by: Catalin Marinas > > --- > > mm/mmap.c | 5 +++++ > > mm/mremap.c | 6 +----- > > 2 files changed, 6 insertions(+), 5 deletions(-) > > Acked-by: Will Deacon > > Andrew -- please can you pick this patch up? I'll take the rest of the > series via arm64 once we've finished discussing the wording details. > Sure, I grabbed the patch from the v9 series. But please feel free to include this in the arm64 tree - I'll autodrop my copy if this turns up in linux-next. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel