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-rw-r--r--kernel/trace/blktrace.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 39af8af6fc3..1090b0aed9b 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -22,6 +22,7 @@
#include <linux/init.h>
#include <linux/mutex.h>
#include <linux/debugfs.h>
+#include <linux/smp_lock.h>
#include <linux/time.h>
#include <linux/uaccess.h>