linux/include/trace/events/cgroup.h
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   1/* SPDX-License-Identifier: GPL-2.0 */
   2#undef TRACE_SYSTEM
   3#define TRACE_SYSTEM cgroup
   4
   5#if !defined(_TRACE_CGROUP_H) || defined(TRACE_HEADER_MULTI_READ)
   6#define _TRACE_CGROUP_H
   7
   8#include <linux/cgroup.h>
   9#include <linux/tracepoint.h>
  10
  11DECLARE_EVENT_CLASS(cgroup_root,
  12
  13        TP_PROTO(struct cgroup_root *root),
  14
  15        TP_ARGS(root),
  16
  17        TP_STRUCT__entry(
  18                __field(        int,            root                    )
  19                __field(        u16,            ss_mask                 )
  20                __string(       name,           root->name              )
  21        ),
  22
  23        TP_fast_assign(
  24                __entry->root = root->hierarchy_id;
  25                __entry->ss_mask = root->subsys_mask;
  26                __assign_str(name, root->name);
  27        ),
  28
  29        TP_printk("root=%d ss_mask=%#x name=%s",
  30                  __entry->root, __entry->ss_mask, __get_str(name))
  31);
  32
  33DEFINE_EVENT(cgroup_root, cgroup_setup_root,
  34
  35        TP_PROTO(struct cgroup_root *root),
  36
  37        TP_ARGS(root)
  38);
  39
  40DEFINE_EVENT(cgroup_root, cgroup_destroy_root,
  41
  42        TP_PROTO(struct cgroup_root *root),
  43
  44        TP_ARGS(root)
  45);
  46
  47DEFINE_EVENT(cgroup_root, cgroup_remount,
  48
  49        TP_PROTO(struct cgroup_root *root),
  50
  51        TP_ARGS(root)
  52);
  53
  54DECLARE_EVENT_CLASS(cgroup,
  55
  56        TP_PROTO(struct cgroup *cgrp, const char *path),
  57
  58        TP_ARGS(cgrp, path),
  59
  60        TP_STRUCT__entry(
  61                __field(        int,            root                    )
  62                __field(        int,            id                      )
  63                __field(        int,            level                   )
  64                __string(       path,           path                    )
  65        ),
  66
  67        TP_fast_assign(
  68                __entry->root = cgrp->root->hierarchy_id;
  69                __entry->id = cgrp->id;
  70                __entry->level = cgrp->level;
  71                __assign_str(path, path);
  72        ),
  73
  74        TP_printk("root=%d id=%d level=%d path=%s",
  75                  __entry->root, __entry->id, __entry->level, __get_str(path))
  76);
  77
  78DEFINE_EVENT(cgroup, cgroup_mkdir,
  79
  80        TP_PROTO(struct cgroup *cgrp, const char *path),
  81
  82        TP_ARGS(cgrp, path)
  83);
  84
  85DEFINE_EVENT(cgroup, cgroup_rmdir,
  86
  87        TP_PROTO(struct cgroup *cgrp, const char *path),
  88
  89        TP_ARGS(cgrp, path)
  90);
  91
  92DEFINE_EVENT(cgroup, cgroup_release,
  93
  94        TP_PROTO(struct cgroup *cgrp, const char *path),
  95
  96        TP_ARGS(cgrp, path)
  97);
  98
  99DEFINE_EVENT(cgroup, cgroup_rename,
 100
 101        TP_PROTO(struct cgroup *cgrp, const char *path),
 102
 103        TP_ARGS(cgrp, path)
 104);
 105
 106DEFINE_EVENT(cgroup, cgroup_freeze,
 107
 108        TP_PROTO(struct cgroup *cgrp, const char *path),
 109
 110        TP_ARGS(cgrp, path)
 111);
 112
 113DEFINE_EVENT(cgroup, cgroup_unfreeze,
 114
 115        TP_PROTO(struct cgroup *cgrp, const char *path),
 116
 117        TP_ARGS(cgrp, path)
 118);
 119
 120DECLARE_EVENT_CLASS(cgroup_migrate,
 121
 122        TP_PROTO(struct cgroup *dst_cgrp, const char *path,
 123                 struct task_struct *task, bool threadgroup),
 124
 125        TP_ARGS(dst_cgrp, path, task, threadgroup),
 126
 127        TP_STRUCT__entry(
 128                __field(        int,            dst_root                )
 129                __field(        int,            dst_id                  )
 130                __field(        int,            dst_level               )
 131                __field(        int,            pid                     )
 132                __string(       dst_path,       path                    )
 133                __string(       comm,           task->comm              )
 134        ),
 135
 136        TP_fast_assign(
 137                __entry->dst_root = dst_cgrp->root->hierarchy_id;
 138                __entry->dst_id = dst_cgrp->id;
 139                __entry->dst_level = dst_cgrp->level;
 140                __assign_str(dst_path, path);
 141                __entry->pid = task->pid;
 142                __assign_str(comm, task->comm);
 143        ),
 144
 145        TP_printk("dst_root=%d dst_id=%d dst_level=%d dst_path=%s pid=%d comm=%s",
 146                  __entry->dst_root, __entry->dst_id, __entry->dst_level,
 147                  __get_str(dst_path), __entry->pid, __get_str(comm))
 148);
 149
 150DEFINE_EVENT(cgroup_migrate, cgroup_attach_task,
 151
 152        TP_PROTO(struct cgroup *dst_cgrp, const char *path,
 153                 struct task_struct *task, bool threadgroup),
 154
 155        TP_ARGS(dst_cgrp, path, task, threadgroup)
 156);
 157
 158DEFINE_EVENT(cgroup_migrate, cgroup_transfer_tasks,
 159
 160        TP_PROTO(struct cgroup *dst_cgrp, const char *path,
 161                 struct task_struct *task, bool threadgroup),
 162
 163        TP_ARGS(dst_cgrp, path, task, threadgroup)
 164);
 165
 166DECLARE_EVENT_CLASS(cgroup_event,
 167
 168        TP_PROTO(struct cgroup *cgrp, const char *path, int val),
 169
 170        TP_ARGS(cgrp, path, val),
 171
 172        TP_STRUCT__entry(
 173                __field(        int,            root                    )
 174                __field(        int,            id                      )
 175                __field(        int,            level                   )
 176                __string(       path,           path                    )
 177                __field(        int,            val                     )
 178        ),
 179
 180        TP_fast_assign(
 181                __entry->root = cgrp->root->hierarchy_id;
 182                __entry->id = cgrp->id;
 183                __entry->level = cgrp->level;
 184                __assign_str(path, path);
 185                __entry->val = val;
 186        ),
 187
 188        TP_printk("root=%d id=%d level=%d path=%s val=%d",
 189                  __entry->root, __entry->id, __entry->level, __get_str(path),
 190                  __entry->val)
 191);
 192
 193DEFINE_EVENT(cgroup_event, cgroup_notify_populated,
 194
 195        TP_PROTO(struct cgroup *cgrp, const char *path, int val),
 196
 197        TP_ARGS(cgrp, path, val)
 198);
 199
 200DEFINE_EVENT(cgroup_event, cgroup_notify_frozen,
 201
 202        TP_PROTO(struct cgroup *cgrp, const char *path, int val),
 203
 204        TP_ARGS(cgrp, path, val)
 205);
 206
 207#endif /* _TRACE_CGROUP_H */
 208
 209/* This part must be outside protection */
 210#include <trace/define_trace.h>
 211