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-rw-r--r--include/linux/mutex.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/mutex.h b/include/linux/mutex.h
index 3e1fccb47f11..e17942ffb3fc 100644
--- a/include/linux/mutex.h
+++ b/include/linux/mutex.h
@@ -20,6 +20,8 @@
#include <linux/osq_lock.h>
#include <linux/debug_locks.h>
+struct ww_acquire_ctx;
+
/*
* Simple, straightforward mutexes with strict semantics:
*
@@ -75,6 +77,7 @@ static inline struct task_struct *__mutex_owner(struct mutex *lock)
struct mutex_waiter {
struct list_head list;
struct task_struct *task;
+ struct ww_acquire_ctx *ww_ctx;
#ifdef CONFIG_DEBUG_MUTEXES
void *magic;
#endif