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-rw-r--r--kernel/locking/rtmutex_common.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/locking/rtmutex_common.h b/kernel/locking/rtmutex_common.h
index fcc55de46b28..9e2f1dbf6482 100644
--- a/kernel/locking/rtmutex_common.h
+++ b/kernel/locking/rtmutex_common.h
@@ -39,6 +39,20 @@ struct rt_mutex_waiter {
u64 deadline;
};
+/**
+ * rt_wake_q_head - Wrapper around regular wake_q_head to support
+ * "sleeping" spinlocks on RT
+ * @head: The regular wake_q_head for sleeping lock variants
+ */
+struct rt_wake_q_head {
+ struct wake_q_head head;
+};
+
+#define DEFINE_RT_WAKE_Q(name) \
+ struct rt_wake_q_head name = { \
+ .head = WAKE_Q_HEAD_INITIALIZER(name.head), \
+ }
+
/*
* PI-futex support (proxy locking functions, etc.):
*/