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 TRACE_EVENT(lock_release,
  39
  40         TP_PROTO(struct lockdep_map *lock, int nested, unsigned long ip),
  41
  42         TP_ARGS(lock, nested, 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",
  55                   __entry->lockdep_addr, __get_str(name))
  56 );
  57
  58 #ifdef CONFIG_LOCK_STAT
  59
  60 TRACE_EVENT(lock_contended,
  61
  62         TP_PROTO(struct lockdep_map *lock, unsigned long ip),
  63
  64         TP_ARGS(lock, ip),
  65
  66         TP_STRUCT__entry(
  67                 __string(name, lock->name)
  68                 __field(void *, lockdep_addr)
  69         ),
  70
  71         TP_fast_assign(
  72                 __assign_str(name, lock->name);
  73                 __entry->lockdep_addr = lock;
  74         ),
  75
  76         TP_printk("%p %s",
  77                   __entry->lockdep_addr, __get_str(name))
  78 );
  79
  80 TRACE_EVENT(lock_acquired,
  81         TP_PROTO(struct lockdep_map *lock, unsigned long ip, s64 waittime),
  82
  83         TP_ARGS(lock, ip, waittime),
  84
  85         TP_STRUCT__entry(
  86                 __string(name, lock->name)
  87                 __field(s64, wait_nsec)
  88                 __field(void *, lockdep_addr)
  89         ),
  90
  91         TP_fast_assign(
  92                 __assign_str(name, lock->name);
  93                 __entry->wait_nsec = waittime;
  94                 __entry->lockdep_addr = lock;
  95         ),
  96         TP_printk("%p %s (%llu ns)", __entry->lockdep_addr,
  97                   __get_str(name),
  98                   __entry->wait_nsec)
  99 );
 100
 101 #endif
 102 #endif
 103
 104 #endif /* _TRACE_LOCK_H */
 105
 106 /* This part must be outside protection */
 107 #include <trace/define_trace.h>