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-rw-r--r--kernel/include/trace/events/lock.h86
1 files changed, 86 insertions, 0 deletions
diff --git a/kernel/include/trace/events/lock.h b/kernel/include/trace/events/lock.h
new file mode 100644
index 000000000..2821b86de
--- /dev/null
+++ b/kernel/include/trace/events/lock.h
@@ -0,0 +1,86 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM lock
+
+#if !defined(_TRACE_LOCK_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_LOCK_H
+
+#include <linux/lockdep.h>
+#include <linux/tracepoint.h>
+
+#ifdef CONFIG_LOCKDEP
+
+TRACE_EVENT(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_STRUCT__entry(
+ __field(unsigned int, flags)
+ __string(name, lock->name)
+ __field(void *, lockdep_addr)
+ ),
+
+ TP_fast_assign(
+ __entry->flags = (trylock ? 1 : 0) | (read ? 2 : 0);
+ __assign_str(name, lock->name);
+ __entry->lockdep_addr = lock;
+ ),
+
+ TP_printk("%p %s%s%s", __entry->lockdep_addr,
+ (__entry->flags & 1) ? "try " : "",
+ (__entry->flags & 2) ? "read " : "",
+ __get_str(name))
+);
+
+DECLARE_EVENT_CLASS(lock,
+
+ TP_PROTO(struct lockdep_map *lock, unsigned long ip),
+
+ TP_ARGS(lock, ip),
+
+ TP_STRUCT__entry(
+ __string( name, lock->name )
+ __field( void *, lockdep_addr )
+ ),
+
+ TP_fast_assign(
+ __assign_str(name, lock->name);
+ __entry->lockdep_addr = lock;
+ ),
+
+ TP_printk("%p %s", __entry->lockdep_addr, __get_str(name))
+);
+
+DEFINE_EVENT(lock, lock_release,
+
+ TP_PROTO(struct lockdep_map *lock, unsigned long ip),
+
+ TP_ARGS(lock, ip)
+);
+
+#ifdef CONFIG_LOCK_STAT
+
+DEFINE_EVENT(lock, lock_contended,
+
+ TP_PROTO(struct lockdep_map *lock, unsigned long ip),
+
+ TP_ARGS(lock, ip)
+);
+
+DEFINE_EVENT(lock, lock_acquired,
+
+ TP_PROTO(struct lockdep_map *lock, unsigned long ip),
+
+ TP_ARGS(lock, ip)
+);
+
+#endif
+#endif
+
+#endif /* _TRACE_LOCK_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>