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-rw-r--r--kernel/mutex.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/mutex.c b/kernel/mutex.c
index e581ada5faf4..ff05f4bd86eb 100644
--- a/kernel/mutex.c
+++ b/kernel/mutex.c
@@ -18,6 +18,7 @@
* Also see Documentation/mutex-design.txt.
*/
#include <linux/mutex.h>
+#include <linux/ww_mutex.h>
#include <linux/sched.h>
#include <linux/sched/rt.h>
#include <linux/export.h>