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authorGleb Natapov <gleb@redhat.com>2011-05-04 16:31:03 +0300
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2011-05-05 23:16:59 -0700
commit29ce831000081dd757d3116bf774aafffc4b6b20 (patch)
tree0b992d993b02d3479a150e9fc508d110dc45631d /include/linux/rcutiny.h
parentbad6e1393cb505fe17747344a23666464daa3fa7 (diff)
rcu: provide rcu_virt_note_context_switch() function.
Provide rcu_virt_note_context_switch() for vitalization use to note quiescent state during guest entry. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'include/linux/rcutiny.h')
-rw-r--r--include/linux/rcutiny.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
index 30ebd7c8d874..52b3e0281fd0 100644
--- a/include/linux/rcutiny.h
+++ b/include/linux/rcutiny.h
@@ -100,6 +100,14 @@ static inline void rcu_note_context_switch(int cpu)
}
/*
+ * Take advantage of the fact that there is only one CPU, which
+ * allows us to ignore virtualization-based context switches.
+ */
+static inline void rcu_virt_note_context_switch(int cpu)
+{
+}
+
+/*
* Return the number of grace periods.
*/
static inline long rcu_batches_completed(void)