1 files changed, 60 insertions, 0 deletions

diff --git a/include/trace/events/lockdep.h b/include/trace/events/lockdep.h
new file mode 100644
index 000000000000..45e326b5c7f3
--- /dev/null
+++ b/include/trace/events/lockdep.h
@@ -0,0 +1,60 @@
+#if !defined(_TRACE_LOCKDEP_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_LOCKDEP_H
+
+#include <linux/lockdep.h>
+#include <linux/tracepoint.h>
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM lockdep
+
+#ifdef CONFIG_LOCKDEP
+
+TRACE_FORMAT(lock_acquire,
+        TP_PROTO(struct lockdep_map *lock, unsigned int subclass,
+                int trylock, int read, int check,
+                struct lockdep_map *next_lock, unsigned long ip),
+        TP_ARGS(lock, subclass, trylock, read, check, next_lock, ip),
+        TP_FMT("%s%s%s", trylock ? "try " : "",
+                read ? "read " : "", lock->name)
+        );
+
+TRACE_FORMAT(lock_release,
+        TP_PROTO(struct lockdep_map *lock, int nested, unsigned long ip),
+        TP_ARGS(lock, nested, ip),
+        TP_FMT("%s", lock->name)
+        );
+
+#ifdef CONFIG_LOCK_STAT
+
+TRACE_FORMAT(lock_contended,
+        TP_PROTO(struct lockdep_map *lock, unsigned long ip),
+        TP_ARGS(lock, ip),
+        TP_FMT("%s", lock->name)
+        );
+
+TRACE_EVENT(lock_acquired,
+        TP_PROTO(struct lockdep_map *lock, unsigned long ip, s64 waittime),
+
+        TP_ARGS(lock, ip, waittime),
+
+        TP_STRUCT__entry(
+                __field(const char *, name)
+                __field(unsigned long, wait_usec)
+                __field(unsigned long, wait_nsec_rem)
+        ),
+        TP_fast_assign(
+                __entry->name = lock->name;
+                __entry->wait_nsec_rem = do_div(waittime, NSEC_PER_USEC);
+                __entry->wait_usec = (unsigned long) waittime;
+        ),
+        TP_printk("%s (%lu.%03lu us)", __entry->name, __entry->wait_usec,
+                                       __entry->wait_nsec_rem)
+);
+
+#endif
+#endif
+
+#endif /* _TRACE_LOCKDEP_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>