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=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS autolearn=ham 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 31957C43387 for ; Mon, 7 Jan 2019 19:53:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EF793218FF for ; Mon, 7 Jan 2019 19:53:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728454AbfAGTxm (ORCPT ); Mon, 7 Jan 2019 14:53:42 -0500 Received: from mail.kernel.org ([198.145.29.99]:35466 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728178AbfAGTxe (ORCPT ); Mon, 7 Jan 2019 14:53:34 -0500 Received: from gandalf.local.home (cpe-66-24-56-78.stny.res.rr.com [66.24.56.78]) (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 9471D2183F; Mon, 7 Jan 2019 19:53:33 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.91) (envelope-from ) id 1ggaxo-0000JS-KW; Mon, 07 Jan 2019 14:53:32 -0500 Message-Id: <20190107195332.509917755@goodmis.org> User-Agent: quilt/0.65 Date: Mon, 07 Jan 2019 14:52:57 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org, linux-rt-users Cc: Thomas Gleixner , Carsten Emde , Sebastian Andrzej Siewior , John Kacur , Paul Gortmaker , Julia Cartwright , Daniel Wagner , tom.zanussi@linux.intel.com, Jonathan Rajott Subject: [PATCH RT 05/13] sched/migrate_disable: Add export_symbol_gpl for __migrate_disabled References: <20190107195252.599921907@goodmis.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.14.87-rt50-rc1 stable review patch. If anyone has any objections, please let me know. ------------------ From: Sebastian Andrzej Siewior [ Upstream commit c0f0dd3ced7abe307d8e89477dae2929e488ba6c ] Jonathan reported that lttng/modules can't use __migrate_disabled(). This function is only used by sched/core itself and the tracing infrastructure to report the migrate counter (lttng does probably the same). Since the rework migrate_disable() it moved from sched.h to preempt.h and is became an exported function instead of a "static inline" due to the header recursion of preempt vs sched. Since the compiler inlines the function for sched/core usage, add a EXPORT_SYMBOL_GPL to allow the module/LTTNG usage. Reported-by: Jonathan Rajott Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Steven Rostedt (VMware) --- kernel/sched/core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 6ce950f24a7f..7c960cf07e7b 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -1112,6 +1112,7 @@ int __migrate_disabled(struct task_struct *p) { return p->migrate_disable; } +EXPORT_SYMBOL_GPL(__migrate_disabled); #endif static void __do_set_cpus_allowed_tail(struct task_struct *p, -- 2.19.2