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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-06-30 11:14:32 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-07-17 14:59:01 -0700
commitcf3620a6c7798be3395163d3bb863ab378a6aa80 (patch)
tree439e5d6905d777fdd009c6a794f922a1c3837de7 /kernel/rcu/tree.h
parent2cd6ffafec066118365f6d7eb7a42ea16c1f032c (diff)
downloadlinux-sh-cf3620a6c7798be3395163d3bb863ab378a6aa80.tar.gz
rcu: Add stall warnings to synchronize_sched_expedited()
Although synchronize_sched_expedited() historically has no RCU CPU stall warnings, the availability of the rcupdate.rcu_expedited boot parameter invalidates the old assumption that synchronize_sched()'s stall warnings would suffice. This commit therefore adds RCU CPU stall warnings to synchronize_sched_expedited(). Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu/tree.h')
-rw-r--r--kernel/rcu/tree.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index efee84ce1e08..b3ae8d3cffbc 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -370,6 +370,7 @@ struct rcu_data {
struct rcu_head oom_head;
#endif /* #ifdef CONFIG_RCU_FAST_NO_HZ */
struct mutex exp_funnel_mutex;
+ bool exp_done; /* Expedited QS for this CPU? */
/* 7) Callback offloading. */
#ifdef CONFIG_RCU_NOCB_CPU