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 27062C54FCB for ; Wed, 22 Apr 2020 16:27:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0B0062082E for ; Wed, 22 Apr 2020 16:27:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726503AbgDVQ1w (ORCPT ); Wed, 22 Apr 2020 12:27:52 -0400 Received: from mail.kernel.org ([198.145.29.99]:42628 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726006AbgDVQ1v (ORCPT ); Wed, 22 Apr 2020 12:27:51 -0400 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (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 7B2C82076E; Wed, 22 Apr 2020 16:27:51 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.93) (envelope-from ) id 1jRIE2-000O3m-AS; Wed, 22 Apr 2020 12:27:50 -0400 Message-Id: <20200422162539.808362933@goodmis.org> User-Agent: quilt/0.65 Date: Wed, 22 Apr 2020 12:25:39 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Peter Zijlstra , tglx@linutronix.de, jpoimboe@redhat.com, x86@kernel.org, mhiramat@kernel.org, mbenes@suse.cz, jthierry@redhat.com, alexandre.chartre@oracle.com Subject: [PATCH 0/3] x86/ftrace: Make created trampolines not call direct code Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Peter, These three patches are built on top of your patch series. This is what I was thinking of having. This isn't fully tested (as your patch series is still running on my test suite). -- Steve Steven Rostedt (VMware) (3): x86/ftrace: Make non direct case the default in ftrace_regs_caller x86/ftrace: Only have the builtin ftrace_regs_caller call direct hooks x86/ftrace: Do not jump to direct code in created trampolines ---- arch/x86/kernel/ftrace.c | 14 +++++++++++--- arch/x86/kernel/ftrace_64.S | 29 ++++++++++++++--------------- kernel/trace/ftrace.c | 8 ++++++++ 3 files changed, 33 insertions(+), 18 deletions(-)