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=-0.8 required=3.0 tests=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 C3892C433E0 for ; Sat, 30 May 2020 14:52:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A450920723 for ; Sat, 30 May 2020 14:52:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729144AbgE3Ow5 (ORCPT ); Sat, 30 May 2020 10:52:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42532 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728927AbgE3Ow4 (ORCPT ); Sat, 30 May 2020 10:52:56 -0400 Received: from ZenIV.linux.org.uk (zeniv.linux.org.uk [IPv6:2002:c35c:fd02::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 40954C03E969; Sat, 30 May 2020 07:52:53 -0700 (PDT) Received: from viro by ZenIV.linux.org.uk with local (Exim 4.93 #3 (Red Hat Linux)) id 1jf2qv-000U2Z-8N; Sat, 30 May 2020 14:52:49 +0000 Date: Sat, 30 May 2020 15:52:49 +0100 From: Al Viro To: Linus Torvalds Cc: Paolo Bonzini , Linux Kernel Mailing List , linux-fsdevel , KVM list Subject: Re: [PATCH 8/9] x86: kvm_hv_set_msr(): use __put_user() instead of 32bit __clear_user() Message-ID: <20200530145249.GO23230@ZenIV.linux.org.uk> References: <20200528234025.GT23230@ZenIV.linux.org.uk> <20200529232723.44942-1-viro@ZenIV.linux.org.uk> <20200529232723.44942-8-viro@ZenIV.linux.org.uk> <20200530143147.GN23230@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200530143147.GN23230@ZenIV.linux.org.uk> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, May 30, 2020 at 03:31:47PM +0100, Al Viro wrote: > It's a bit trickier than that, but I want to deal with that at the same > time as the rest of kvm/vhost stuff. So for this series I just went > for minimal change. There's quite a pile of vhost and kvm stuff, > but it's not ready yet - wait for the next cycle. BTW, regarding uaccess plans for the next cycle: * regset mess (at least the ->get() side) * killing more compat_alloc_user_space() call sites (_maybe_ all of it, if we are lucky enough; v4l2 is a bitch in that respect, but I've some ideas on how to deal with that - need to discuss with mchehab) * sorting the remaining (harder) parts of i915 out * kvm/vhost * fault_in_pages_...() series That should get rid of almost all __... ones outside of arch/*; might actually kill copy_in_user() off as well. * finally lifting stac/clac out of raw_copy_{to,from}_user().