include/trace/events/lockdep.h

   1 #undef TRACE_SYSTEM
   2 #define TRACE_SYSTEM lockdep
   3
   4 #if !defined(_TRACE_LOCKDEP_H) || defined(TRACE_HEADER_MULTI_READ)
   5 #define _TRACE_LOCKDEP_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         ),
  24
  25         TP_fast_assign(
  26                 __entry->flags = (trylock ? 1 : 0) | (read ? 2 : 0);
  27                 __assign_str(name, lock->name);
  28         ),
  29
  30         TP_printk("%s%s%s", (__entry->flags & 1) ? "try " : "",
  31                   (__entry->flags & 2) ? "read " : "",
  32                   __get_str(name))
  33 );
  34
  35 TRACE_EVENT(lock_release,
  36
  37         TP_PROTO(struct lockdep_map *lock, int nested, unsigned long ip),
  38
  39         TP_ARGS(lock, nested, ip),
  40
  41         TP_STRUCT__entry(
  42                 __string(name, lock->name)
  43         ),
  44
  45         TP_fast_assign(
  46                 __assign_str(name, lock->name);
  47         ),
  48
  49         TP_printk("%s", __get_str(name))
  50 );
  51
  52 #ifdef CONFIG_LOCK_STAT
  53
  54 TRACE_EVENT(lock_contended,
  55
  56         TP_PROTO(struct lockdep_map *lock, unsigned long ip),
  57
  58         TP_ARGS(lock, ip),
  59
  60         TP_STRUCT__entry(
  61                 __string(name, lock->name)
  62         ),
  63
  64         TP_fast_assign(
  65                 __assign_str(name, lock->name);
  66         ),
  67
  68         TP_printk("%s", __get_str(name))
  69 );
  70
  71 TRACE_EVENT(lock_acquired,
  72         TP_PROTO(struct lockdep_map *lock, unsigned long ip, s64 waittime),
  73
  74         TP_ARGS(lock, ip, waittime),
  75
  76         TP_STRUCT__entry(
  77                 __string(name, lock->name)
  78                 __field(unsigned long, wait_usec)
  79                 __field(unsigned long, wait_nsec_rem)
  80         ),
  81         TP_fast_assign(
  82                 __assign_str(name, lock->name);
  83                 __entry->wait_nsec_rem = do_div(waittime, NSEC_PER_USEC);
  84                 __entry->wait_usec = (unsigned long) waittime;
  85         ),
  86         TP_printk("%s (%lu.%03lu us)", __get_str(name), __entry->wait_usec,
  87                                        __entry->wait_nsec_rem)
  88 );
  89
  90 #endif
  91 #endif
  92
  93 #endif /* _TRACE_LOCKDEP_H */
  94
  95 /* This part must be outside protection */
  96 #include <trace/define_trace.h>