cgroup: fix cgroup hierarchy umount race

[karo-tx-linux.git] / kernel / rcutree.h

diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index 7f5d138dedf55c94c7f9a8f6ba9953b90f6b146b..ea056495783e1a09c482802bd2e66d0c863c8a35 100644 (file)
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -84,6 +84,20 @@ struct rcu_dynticks {
                                    /* Process level is worth LLONG_MAX/2. */
        int dynticks_nmi_nesting;   /* Track NMI nesting level. */
        atomic_t dynticks;          /* Even value for idle, else odd. */
+#ifdef CONFIG_RCU_FAST_NO_HZ
+       int dyntick_drain;          /* Prepare-for-idle state variable. */
+       unsigned long dyntick_holdoff;
+                                   /* No retries for the jiffy of failure. */
+       struct timer_list idle_gp_timer;
+                                   /* Wake up CPU sleeping with callbacks. */
+       unsigned long idle_gp_timer_expires;
+                                   /* When to wake up CPU (for repost). */
+       bool idle_first_pass;       /* First pass of attempt to go idle? */
+       unsigned long nonlazy_posted;
+                                   /* # times non-lazy CBs posted to CPU. */
+       unsigned long nonlazy_posted_snap;
+                                   /* idle-period nonlazy_posted snapshot. */
+#endif /* #ifdef CONFIG_RCU_FAST_NO_HZ */
 };
 
 /* RCU's kthread states for tracing. */