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-rw-r--r--include/linux/sched.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index d67eee84fd43..1ea2eee7bc4f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -775,6 +775,8 @@ struct task_struct {
/* PI waiters blocked on a rt_mutex held by this task: */
struct rb_root pi_waiters;
struct rb_node *pi_waiters_leftmost;
+ /* Updated under owner's pi_lock and rq lock */
+ struct task_struct *pi_top_task;
/* Deadlock detection and priority inheritance handling: */
struct rt_mutex_waiter *pi_blocked_on;
#endif