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Date:	Tue,  6 Oct 2015 09:13:36 -0700
From:	"Paul E. McKenney" <>
Cc:,,,,,,,,,,,,,,, Davidlohr Bueso <>,
	"Paul E. McKenney" <>
Subject: [PATCH tip/core/rcu 01/13] sched: Export sched_setscheduler_nocheck

From: Davidlohr Bueso <>

The new locktorture rtmutex_lock tests exercise priority boosting, which
means that they need to set some tasks to real-time priority.  To do this,
they use sched_setscheduler_nocheck().  However, this is not exported to
modules, which results in the following error when building locktorture
as a module:

ERROR: "sched_setscheduler_nocheck" [kernel/locking/locktorture.ko] undefined!

This commit therefore adds an EXPORT_SYMBOL_GPL() to allow this function
to be invoked from locktorture when built as a module.

Reported-by: Stephen Rothwell <>
Signed-off-by: Davidlohr Bueso <>
Signed-off-by: Paul E. McKenney <>
Acked-by: Ingo Molnar <>
 kernel/sched/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 2f9c92884817..c4e607873d6f 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4022,6 +4022,7 @@ int sched_setscheduler_nocheck(struct task_struct *p, int policy,
 	return _sched_setscheduler(p, policy, param, false);
 static int
 do_sched_setscheduler(pid_t pid, int policy, struct sched_param __user *param)

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