From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Fri, 21 Nov 2014 23:45:27 +0000 (-0800)
Subject: rcu: Provide rcu_batches_completed_sched() for TINY_RCU
X-Git-Tag: v4.14-rc1~5883^2^2~1^6~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c1fe9cde4ae904fffb5b4d975d0a37e99136ff50;p=platform%2Fkernel%2Flinux-rpi.git

rcu: Provide rcu_batches_completed_sched() for TINY_RCU

A bug in rcutorture has caused it to ignore completed batches.
In preparation for fixing that bug, this commit provides TINY_RCU with
the required rcu_batches_completed_sched().

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---

diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
index 91f7e4c3..1ce2d6b 100644
--- a/include/linux/rcutiny.h
+++ b/include/linux/rcutiny.h
@@ -107,6 +107,14 @@ static inline unsigned long rcu_batches_completed_bh(void)
 	return 0;
 }
 
+/*
+ * Return the number of sched grace periods.
+ */
+static inline unsigned long rcu_batches_completed_sched(void)
+{
+	return 0;
+}
+
 static inline void rcu_force_quiescent_state(void)
 {
 }