include/trace/events/cgroup.h

   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
  11 DECLARE_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
  33 DEFINE_EVENT(cgroup_root, cgroup_setup_root,
  34
  35         TP_PROTO(struct cgroup_root *root),
  36
  37         TP_ARGS(root)
  38 );
  39
  40 DEFINE_EVENT(cgroup_root, cgroup_destroy_root,
  41
  42         TP_PROTO(struct cgroup_root *root),
  43
  44         TP_ARGS(root)
  45 );
  46
  47 DEFINE_EVENT(cgroup_root, cgroup_remount,
  48
  49         TP_PROTO(struct cgroup_root *root),
  50
  51         TP_ARGS(root)
  52 );
  53
  54 DECLARE_EVENT_CLASS(cgroup,
  55
  56         TP_PROTO(struct cgroup *cgrp),
  57
  58         TP_ARGS(cgrp),
  59
  60         TP_STRUCT__entry(
  61                 __field(        int,            root                    )
  62                 __field(        int,            id                      )
  63                 __field(        int,            level                   )
  64                 __dynamic_array(char,           path,
  65                                 cgroup_path(cgrp, NULL, 0) + 1)
  66         ),
  67
  68         TP_fast_assign(
  69                 __entry->root = cgrp->root->hierarchy_id;
  70                 __entry->id = cgrp->id;
  71                 __entry->level = cgrp->level;
  72                 cgroup_path(cgrp, __get_dynamic_array(path),
  73                                   __get_dynamic_array_len(path));
  74         ),
  75
  76         TP_printk("root=%d id=%d level=%d path=%s",
  77                   __entry->root, __entry->id, __entry->level, __get_str(path))
  78 );
  79
  80 DEFINE_EVENT(cgroup, cgroup_mkdir,
  81
  82         TP_PROTO(struct cgroup *cgroup),
  83
  84         TP_ARGS(cgroup)
  85 );
  86
  87 DEFINE_EVENT(cgroup, cgroup_rmdir,
  88
  89         TP_PROTO(struct cgroup *cgroup),
  90
  91         TP_ARGS(cgroup)
  92 );
  93
  94 DEFINE_EVENT(cgroup, cgroup_release,
  95
  96         TP_PROTO(struct cgroup *cgroup),
  97
  98         TP_ARGS(cgroup)
  99 );
 100
 101 DEFINE_EVENT(cgroup, cgroup_rename,
 102
 103         TP_PROTO(struct cgroup *cgroup),
 104
 105         TP_ARGS(cgroup)
 106 );
 107
 108 DECLARE_EVENT_CLASS(cgroup_migrate,
 109
 110         TP_PROTO(struct cgroup *dst_cgrp, struct task_struct *task, bool threadgroup),
 111
 112         TP_ARGS(dst_cgrp, task, threadgroup),
 113
 114         TP_STRUCT__entry(
 115                 __field(        int,            dst_root                )
 116                 __field(        int,            dst_id                  )
 117                 __field(        int,            dst_level               )
 118                 __dynamic_array(char,           dst_path,
 119                                 cgroup_path(dst_cgrp, NULL, 0) + 1)
 120                 __field(        int,            pid                     )
 121                 __string(       comm,           task->comm              )
 122         ),
 123
 124         TP_fast_assign(
 125                 __entry->dst_root = dst_cgrp->root->hierarchy_id;
 126                 __entry->dst_id = dst_cgrp->id;
 127                 __entry->dst_level = dst_cgrp->level;
 128                 cgroup_path(dst_cgrp, __get_dynamic_array(dst_path),
 129                                       __get_dynamic_array_len(dst_path));
 130                 __entry->pid = task->pid;
 131                 __assign_str(comm, task->comm);
 132         ),
 133
 134         TP_printk("dst_root=%d dst_id=%d dst_level=%d dst_path=%s pid=%d comm=%s",
 135                   __entry->dst_root, __entry->dst_id, __entry->dst_level,
 136                   __get_str(dst_path), __entry->pid, __get_str(comm))
 137 );
 138
 139 DEFINE_EVENT(cgroup_migrate, cgroup_attach_task,
 140
 141         TP_PROTO(struct cgroup *dst_cgrp, struct task_struct *task, bool threadgroup),
 142
 143         TP_ARGS(dst_cgrp, task, threadgroup)
 144 );
 145
 146 DEFINE_EVENT(cgroup_migrate, cgroup_transfer_tasks,
 147
 148         TP_PROTO(struct cgroup *dst_cgrp, struct task_struct *task, bool threadgroup),
 149
 150         TP_ARGS(dst_cgrp, task, threadgroup)
 151 );
 152
 153 #endif /* _TRACE_CGROUP_H */
 154
 155 /* This part must be outside protection */
 156 #include <trace/define_trace.h>