commit 319362c90f7af92d03714759bea5d2ba7c88e388
author Paul E. McKenney <paulmck@linux.vnet.ibm.com> Tue May 19 14:16:52 2015 -0700
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> Wed Jul 15 14:45:10 2015 -0700
tree b02526a5f71d213ad1647ec5503a7a4e968239ed
parent d770e558e21961ad6cfdf0ff7df0eb5d7d4f0754

rcu: Provide more diagnostics for stalled GP kthread

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

kernel/rcu/tree.h

diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index 4adb7ca..f1f4784 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -527,7 +527,11 @@
 /* Values for rcu_state structure's gp_flags field. */
 #define RCU_GP_WAIT_INIT 0	/* Initial state. */
 #define RCU_GP_WAIT_GPS  1	/* Wait for grace-period start. */
-#define RCU_GP_WAIT_FQS  2	/* Wait for force-quiescent-state time. */
+#define RCU_GP_DONE_GPS  2	/* Wait done for grace-period start. */
+#define RCU_GP_WAIT_FQS  3	/* Wait for force-quiescent-state time. */
+#define RCU_GP_DONE_FQS  4	/* Wait done for force-quiescent-state time. */
+#define RCU_GP_CLEANUP   5	/* Grace-period cleanup started. */
+#define RCU_GP_CLEANED   6	/* Grace-period cleanup complete. */
 
 extern struct list_head rcu_struct_flavors;