4.14.87-rt50-rc1 stable review patch. If anyone has any objections, please let me know.
------------------ From: Sebastian Andrzej Siewior <[email protected]> [ 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 <[email protected]> Signed-off-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]> --- 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
