include/trace/events/mmap_lock.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #undef TRACE_SYSTEM
   3 #define TRACE_SYSTEM mmap_lock
   4
   5 #if !defined(_TRACE_MMAP_LOCK_H) || defined(TRACE_HEADER_MULTI_READ)
   6 #define _TRACE_MMAP_LOCK_H
   7
   8 #include <linux/tracepoint.h>
   9 #include <linux/types.h>
  10
  11 struct mm_struct;
  12
  13 extern int trace_mmap_lock_reg(void);
  14 extern void trace_mmap_lock_unreg(void);
  15
  16 TRACE_EVENT_FN(mmap_lock_start_locking,
  17
  18         TP_PROTO(struct mm_struct *mm, const char *memcg_path, bool write),
  19
  20         TP_ARGS(mm, memcg_path, write),
  21
  22         TP_STRUCT__entry(
  23                 __field(struct mm_struct *, mm)
  24                 __string(memcg_path, memcg_path)
  25                 __field(bool, write)
  26         ),
  27
  28         TP_fast_assign(
  29                 __entry->mm = mm;
  30                 __assign_str(memcg_path, memcg_path);
  31                 __entry->write = write;
  32         ),
  33
  34         TP_printk(
  35                 "mm=%p memcg_path=%s write=%s\n",
  36                 __entry->mm,
  37                 __get_str(memcg_path),
  38                 __entry->write ? "true" : "false"
  39         ),
  40
  41         trace_mmap_lock_reg, trace_mmap_lock_unreg
  42 );
  43
  44 TRACE_EVENT_FN(mmap_lock_acquire_returned,
  45
  46         TP_PROTO(struct mm_struct *mm, const char *memcg_path, bool write,
  47                 bool success),
  48
  49         TP_ARGS(mm, memcg_path, write, success),
  50
  51         TP_STRUCT__entry(
  52                 __field(struct mm_struct *, mm)
  53                 __string(memcg_path, memcg_path)
  54                 __field(bool, write)
  55                 __field(bool, success)
  56         ),
  57
  58         TP_fast_assign(
  59                 __entry->mm = mm;
  60                 __assign_str(memcg_path, memcg_path);
  61                 __entry->write = write;
  62                 __entry->success = success;
  63         ),
  64
  65         TP_printk(
  66                 "mm=%p memcg_path=%s write=%s success=%s\n",
  67                 __entry->mm,
  68                 __get_str(memcg_path),
  69                 __entry->write ? "true" : "false",
  70                 __entry->success ? "true" : "false"
  71         ),
  72
  73         trace_mmap_lock_reg, trace_mmap_lock_unreg
  74 );
  75
  76 TRACE_EVENT_FN(mmap_lock_released,
  77
  78         TP_PROTO(struct mm_struct *mm, const char *memcg_path, bool write),
  79
  80         TP_ARGS(mm, memcg_path, write),
  81
  82         TP_STRUCT__entry(
  83                 __field(struct mm_struct *, mm)
  84                 __string(memcg_path, memcg_path)
  85                 __field(bool, write)
  86         ),
  87
  88         TP_fast_assign(
  89                 __entry->mm = mm;
  90                 __assign_str(memcg_path, memcg_path);
  91                 __entry->write = write;
  92         ),
  93
  94         TP_printk(
  95                 "mm=%p memcg_path=%s write=%s\n",
  96                 __entry->mm,
  97                 __get_str(memcg_path),
  98                 __entry->write ? "true" : "false"
  99         ),
 100
 101         trace_mmap_lock_reg, trace_mmap_lock_unreg
 102 );
 103
 104 #endif /* _TRACE_MMAP_LOCK_H */
 105
 106 /* This part must be outside protection */
 107 #include <trace/define_trace.h>