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=-6.4 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 B38E2C433B4 for ; Tue, 4 May 2021 04:12:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 805A161186 for ; Tue, 4 May 2021 04:12:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229773AbhEDENj (ORCPT ); Tue, 4 May 2021 00:13:39 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:52159 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229499AbhEDENi (ORCPT ); Tue, 4 May 2021 00:13:38 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1620101564; 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=Q0ACPl1VAdSU0nEf3aeUyaeDiPkRpjs8Y0P3JP67Ni0=; b=D5dbvAj1l5sglm3Mi9ygLcLa4nGTUk+d2MCdhOFRU5FqU6fbDrjW8zkOdceKsaIvMrfj4+ fh8kRWaRkhI0HpqoA1FVhYmea4VTKqEYpRg4RqPXjqua6rGwXqyBFTZ57qhqKKeRAkA0oP Qj608UUZRdd0rcUPdlGMEwGyDrx7eJs= 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-120-zOEBaDekOs6qeQkHdqsHnA-1; Tue, 04 May 2021 00:12:42 -0400 X-MC-Unique: zOEBaDekOs6qeQkHdqsHnA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A80F2801AD9; Tue, 4 May 2021 04:12:40 +0000 (UTC) Received: from treble (ovpn-115-93.rdu2.redhat.com [10.10.115.93]) by smtp.corp.redhat.com (Postfix) with SMTP id 81C191A874; Tue, 4 May 2021 04:12:35 +0000 (UTC) Date: Mon, 3 May 2021 23:12:35 -0500 From: Josh Poimboeuf To: Al Viro Cc: x86@kernel.org, linux-kernel@vger.kernel.org, Linus Torvalds , Will Deacon , Dan Williams , Andrea Arcangeli , Waiman Long , Peter Zijlstra , Thomas Gleixner , Andrew Cooper , Andy Lutomirski , Christoph Hellwig , David Laight , Mark Rutland Subject: Re: [PATCH v3] x86/uaccess: Use pointer masking to limit uaccess speculation Message-ID: <20210504041235.25mq7il525oiimc6@treble> References: <1d06ed6485b66b9f674900368b63d7ef79f666ca.1599756789.git.jpoimboe@redhat.com> <20200914195354.yghlqlwtqz7mqteb@treble> <20200923033848.GD3421308@ZenIV.linux.org.uk> <20210503233154.lhumcispdgj5dgaz@treble> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 04, 2021 at 12:31:09AM +0000, Al Viro wrote: > On Mon, May 03, 2021 at 06:31:54PM -0500, Josh Poimboeuf wrote: > > On Wed, Sep 23, 2020 at 04:38:48AM +0100, Al Viro wrote: > > > On Mon, Sep 14, 2020 at 02:53:54PM -0500, Josh Poimboeuf wrote: > > > > Al, > > > > > > > > This depends on Christoph's set_fs() removal patches. Would you be > > > > willing to take this in your tree? > > > > > > in #uaccess.x86 and #for-next > > > > Hm, I think this got dropped somehow. Will repost. > > Ow... #uaccess.x86 got dropped from -next at some point, mea culpa. > What I have is b4674e334bb4; it's 5.8-based (well, 5.9-rc1). It > missed post-5.9 merge window and got lost. Could you rebase to > to more or less current tree and repost? No problem, I'll refresh it against the latest. -- Josh