tracing/lockdep: convert lockdep to use TRACE_EVENT macro

The TRACE_FORMAT will soon be deprecated. This patch converts it to
the TRACE_EVENT macro.

Note, this change should also speed up the tracing.

[ Impact: remove a user of deprecated TRACE_FORMAT ]

Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

diff --git a/include/trace/events/lockdep.h b/include/trace/events/lockdep.h
index 3ca315c..0e956c9 100644 (file)
--- a/include/trace/events/lockdep.h
+++ b/include/trace/events/lockdep.h
@@ -9,28 +9,64 @@
 
 #ifdef CONFIG_LOCKDEP
 
-TRACE_FORMAT(lock_acquire,
+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_FMT("%s%s%s", trylock ? "try " : "",
-               read ? "read " : "", lock->name)
-       );
 
-TRACE_FORMAT(lock_release,
+       TP_STRUCT__entry(
+               __field(unsigned int, flags)
+               __string(name, lock->name)
+       ),
+
+       TP_fast_assign(
+               __entry->flags = (trylock ? 1 : 0) | (read ? 2 : 0);
+               __assign_str(name, lock->name);
+       ),
+
+       TP_printk("%s%s%s", (__entry->flags & 1) ? "try " : "",
+                 (__entry->flags & 2) ? "read " : "",
+                 __get_str(name))
+);
+
+TRACE_EVENT(lock_release,
+
        TP_PROTO(struct lockdep_map *lock, int nested, unsigned long ip),
+
        TP_ARGS(lock, nested, ip),
-       TP_FMT("%s", lock->name)
-       );
+
+       TP_STRUCT__entry(
+               __string(name, lock->name)
+       ),
+
+       TP_fast_assign(
+               __assign_str(name, lock->name);
+       ),
+
+       TP_printk("%s", __get_str(name))
+);
 
 #ifdef CONFIG_LOCK_STAT
 
-TRACE_FORMAT(lock_contended,
+TRACE_EVENT(lock_contended,
+
        TP_PROTO(struct lockdep_map *lock, unsigned long ip),
+
        TP_ARGS(lock, ip),
-       TP_FMT("%s", lock->name)
-       );
+
+       TP_STRUCT__entry(
+               __string(name, lock->name)
+       ),
+
+       TP_fast_assign(
+               __assign_str(name, lock->name);
+       ),
+
+       TP_printk("%s", __get_str(name))
+);
 
 TRACE_EVENT(lock_acquired,
        TP_PROTO(struct lockdep_map *lock, unsigned long ip, s64 waittime),