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=BAYES_00, 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 B9118C4363D for ; Wed, 23 Sep 2020 03:38:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 847A420665 for ; Wed, 23 Sep 2020 03:38:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726841AbgIWDi4 (ORCPT ); Tue, 22 Sep 2020 23:38:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46378 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726786AbgIWDi4 (ORCPT ); Tue, 22 Sep 2020 23:38:56 -0400 Received: from ZenIV.linux.org.uk (zeniv.linux.org.uk [IPv6:2002:c35c:fd02::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 01E7DC061755 for ; Tue, 22 Sep 2020 20:38:56 -0700 (PDT) Received: from viro by ZenIV.linux.org.uk with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kKvcG-004Gil-QP; Wed, 23 Sep 2020 03:38:48 +0000 Date: Wed, 23 Sep 2020 04:38:48 +0100 From: Al Viro To: Josh Poimboeuf 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: <20200923033848.GD3421308@ZenIV.linux.org.uk> References: <1d06ed6485b66b9f674900368b63d7ef79f666ca.1599756789.git.jpoimboe@redhat.com> <20200914195354.yghlqlwtqz7mqteb@treble> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200914195354.yghlqlwtqz7mqteb@treble> Sender: Al Viro Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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