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, 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
  78 DEFINE_EVENT(cgroup, cgroup_mkdir,
  79
  80         TP_PROTO(struct cgroup *cgrp, const char *path),
  81
  82         TP_ARGS(cgrp, path)
  83 );
  84
  85 DEFINE_EVENT(cgroup, cgroup_rmdir,
  86
  87         TP_PROTO(struct cgroup *cgrp, const char *path),
  88
  89         TP_ARGS(cgrp, path)
  90 );
  91
  92 DEFINE_EVENT(cgroup, cgroup_release,
  93
  94         TP_PROTO(struct cgroup *cgrp, const char *path),
  95
  96         TP_ARGS(cgrp, path)
  97 );
  98
  99 DEFINE_EVENT(cgroup, cgroup_rename,
 100
 101         TP_PROTO(struct cgroup *cgrp, const char *path),
 102
 103         TP_ARGS(cgrp, path)
 104 );
 105
 106 DECLARE_EVENT_CLASS(cgroup_migrate,
 107
 108         TP_PROTO(struct cgroup *dst_cgrp, const char *path,
 109                  struct task_struct *task, bool threadgroup),
 110
 111         TP_ARGS(dst_cgrp, path, task, threadgroup),
 112
 113         TP_STRUCT__entry(
 114                 __field(        int,            dst_root                )
 115                 __field(        int,            dst_id                  )
 116                 __field(        int,            dst_level               )
 117                 __field(        int,            pid                     )
 118                 __string(       dst_path,       path                    )
 119                 __string(       comm,           task->comm              )
 120         ),
 121
 122         TP_fast_assign(
 123                 __entry->dst_root = dst_cgrp->root->hierarchy_id;
 124                 __entry->dst_id = dst_cgrp->id;
 125                 __entry->dst_level = dst_cgrp->level;
 126                 __assign_str(dst_path, path);
 127                 __entry->pid = task->pid;
 128                 __assign_str(comm, task->comm);
 129         ),
 130
 131         TP_printk("dst_root=%d dst_id=%d dst_level=%d dst_path=%s pid=%d comm=%s",
 132                   __entry->dst_root, __entry->dst_id, __entry->dst_level,
 133                   __get_str(dst_path), __entry->pid, __get_str(comm))
 134 );
 135
 136 DEFINE_EVENT(cgroup_migrate, cgroup_attach_task,
 137
 138         TP_PROTO(struct cgroup *dst_cgrp, const char *path,
 139                  struct task_struct *task, bool threadgroup),
 140
 141         TP_ARGS(dst_cgrp, path, task, threadgroup)
 142 );
 143
 144 DEFINE_EVENT(cgroup_migrate, cgroup_transfer_tasks,
 145
 146         TP_PROTO(struct cgroup *dst_cgrp, const char *path,
 147                  struct task_struct *task, bool threadgroup),
 148
 149         TP_ARGS(dst_cgrp, path, task, threadgroup)
 150 );
 151
 152 #endif /* _TRACE_CGROUP_H */
 153
 154 /* This part must be outside protection */
 155 #include <trace/define_trace.h>