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Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
[firefly-linux-kernel-4.4.55.git]
/
include
/
linux
/
rcutree.h
diff --git
a/include/linux/rcutree.h
b/include/linux/rcutree.h
index d4368b7975c3d09d5b1c08d2a822adebb06e62ac..a722fb67bb2d5a2500852c4fd5593f0e91777af0 100644
(file)
--- a/
include/linux/rcutree.h
+++ b/
include/linux/rcutree.h
@@
-326,4
+326,10
@@
static inline void rcu_exit_nohz(void)
}
#endif /* CONFIG_NO_HZ */
+/* A context switch is a grace period for rcutree. */
+static inline int rcu_blocking_is_gp(void)
+{
+ return num_online_cpus() == 1;
+}
+
#endif /* __LINUX_RCUTREE_H */