include/trace/events/lock.h

   1 #undef TRACE_SYSTEM
   2 #define TRACE_SYSTEM lock
   3
   4 #if !defined(_TRACE_LOCK_H) || defined(TRACE_HEADER_MULTI_READ)
   5 #define _TRACE_LOCK_H
   6
   7 #include <linux/lockdep.h>
   8 #include <linux/tracepoint.h>
   9
  10 #ifdef CONFIG_LOCKDEP
  11
  12 TRACE_EVENT(lock_acquire,
  13
  14         TP_PROTO(struct lockdep_map *lock, unsigned int subclass,
  15                 int trylock, int read, int check,
  16                 struct lockdep_map *next_lock, unsigned long ip),
  17
  18         TP_ARGS(lock, subclass, trylock, read, check, next_lock, ip),
  19
  20         TP_STRUCT__entry(
  21                 __field(unsigned int, flags)
  22                 __string(name, lock->name)
  23                 __field(void *, lockdep_addr)
  24         ),
  25
  26         TP_fast_assign(
  27                 __entry->flags = (trylock ? 1 : 0) | (read ? 2 : 0);
  28                 __assign_str(name, lock->name);
  29                 __entry->lockdep_addr = lock;
  30         ),
  31
  32         TP_printk("%p %s%s%s", __entry->lockdep_addr,
  33                   (__entry->flags & 1) ? "try " : "",
  34                   (__entry->flags & 2) ? "read " : "",
  35                   __get_str(name))
  36 );
  37
  38 DECLARE_EVENT_CLASS(lock,
  39
  40         TP_PROTO(struct lockdep_map *lock, unsigned long ip),
  41
  42         TP_ARGS(lock, ip),
  43
  44         TP_STRUCT__entry(
  45                 __string(       name,   lock->name      )
  46                 __field(        void *, lockdep_addr    )
  47         ),
  48
  49         TP_fast_assign(
  50                 __assign_str(name, lock->name);
  51                 __entry->lockdep_addr = lock;
  52         ),
  53
  54         TP_printk("%p %s",  __entry->lockdep_addr, __get_str(name))
  55 );
  56
  57 DEFINE_EVENT(lock, lock_release,
  58
  59         TP_PROTO(struct lockdep_map *lock, unsigned long ip),
  60
  61         TP_ARGS(lock, ip)
  62 );
  63
  64 #ifdef CONFIG_LOCK_STAT
  65
  66 DEFINE_EVENT(lock, lock_contended,
  67
  68         TP_PROTO(struct lockdep_map *lock, unsigned long ip),
  69
  70         TP_ARGS(lock, ip)
  71 );
  72
  73 DEFINE_EVENT(lock, lock_acquired,
  74
  75         TP_PROTO(struct lockdep_map *lock, unsigned long ip),
  76
  77         TP_ARGS(lock, ip)
  78 );
  79
  80 #endif
  81 #endif
  82
  83 #endif /* _TRACE_LOCK_H */
  84
  85 /* This part must be outside protection */
  86 #include <trace/define_trace.h>