rcu: add grace-period age and more kthread state to tracing

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / kernel / rcutree.h

diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index 67341dbebd95961af287a81cc95005292b66bd65..37502a27a0724fd0c96f789d888f12218fc21d76 100644 (file)
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -93,8 +93,9 @@ struct rcu_dynticks {
 #define RCU_KTHREAD_STOPPED  0
 #define RCU_KTHREAD_RUNNING  1
 #define RCU_KTHREAD_WAITING  2
-#define RCU_KTHREAD_YIELDING 3
-#define RCU_KTHREAD_MAX      3
+#define RCU_KTHREAD_OFFCPU   3
+#define RCU_KTHREAD_YIELDING 4
+#define RCU_KTHREAD_MAX      4
 
 /*
  * Definition for node within the RCU grace-period-detection hierarchy.
@@ -383,6 +384,8 @@ struct rcu_state {
                                                /*  but in jiffies. */
        unsigned long jiffies_stall;            /* Time at which to check */
                                                /*  for CPU stalls. */
+       unsigned long gp_max;                   /* Maximum GP duration in */
+                                               /*  jiffies. */
        char *name;                             /* Name of structure. */
 };