From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steven Rostedt Subject: [PATCH RT 05/13] sched/migrate_disable: Add export_symbol_gpl for __migrate_disabled Date: Mon, 07 Jan 2019 14:52:57 -0500 Message-ID: <20190107195332.509917755@goodmis.org> References: <20190107195252.599921907@goodmis.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Cc: Thomas Gleixner , Carsten Emde , Sebastian Andrzej Siewior , John Kacur , Paul Gortmaker , Julia Cartwright , Daniel Wagner , tom.zanussi@linux.intel.com, Jonathan Rajott To: linux-kernel@vger.kernel.org, linux-rt-users Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-rt-users.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