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-rw-r--r--include/trace/events/bkl.h61
1 files changed, 61 insertions, 0 deletions
diff --git a/include/trace/events/bkl.h b/include/trace/events/bkl.h
new file mode 100644
index 000000000000..8abd620a490e
--- /dev/null
+++ b/include/trace/events/bkl.h
@@ -0,0 +1,61 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM bkl
+
+#if !defined(_TRACE_BKL_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_BKL_H
+
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(lock_kernel,
+
+ TP_PROTO(const char *func, const char *file, int line),
+
+ TP_ARGS(func, file, line),
+
+ TP_STRUCT__entry(
+ __field( int, lock_depth )
+ __field_ext( const char *, func, FILTER_PTR_STRING )
+ __field_ext( const char *, file, FILTER_PTR_STRING )
+ __field( int, line )
+ ),
+
+ TP_fast_assign(
+ /* We want to record the lock_depth after lock is acquired */
+ __entry->lock_depth = current->lock_depth + 1;
+ __entry->func = func;
+ __entry->file = file;
+ __entry->line = line;
+ ),
+
+ TP_printk("depth: %d, %s:%d %s()", __entry->lock_depth,
+ __entry->file, __entry->line, __entry->func)
+);
+
+TRACE_EVENT(unlock_kernel,
+
+ TP_PROTO(const char *func, const char *file, int line),
+
+ TP_ARGS(func, file, line),
+
+ TP_STRUCT__entry(
+ __field(int, lock_depth)
+ __field(const char *, func)
+ __field(const char *, file)
+ __field(int, line)
+ ),
+
+ TP_fast_assign(
+ __entry->lock_depth = current->lock_depth;
+ __entry->func = func;
+ __entry->file = file;
+ __entry->line = line;
+ ),
+
+ TP_printk("depth: %d, %s:%d %s()", __entry->lock_depth,
+ __entry->file, __entry->line, __entry->func)
+);
+
+#endif /* _TRACE_BKL_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>