Merge branch 'x86/core' into cpus4096

[cascardo/linux.git] / include / linux / rcuclassic.h

diff --git a/include/linux/rcuclassic.h b/include/linux/rcuclassic.h
index f3f697d..80044a4 100644 (file)
--- a/include/linux/rcuclassic.h
+++ b/include/linux/rcuclassic.h
@@ -181,4 +181,10 @@ extern long rcu_batches_completed_bh(void);
 #define rcu_enter_nohz()       do { } while (0)
 #define rcu_exit_nohz()                do { } while (0)
 
+/* A context switch is a grace period for rcuclassic. */
+static inline int rcu_blocking_is_gp(void)
+{
+       return num_online_cpus() == 1;
+}
+
 #endif /* __LINUX_RCUCLASSIC_H */