LXR linux/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
  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),
  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
  80DEFINE_EVENT(cgroup, cgroup_mkdir,
  81
  82        TP_PROTO(struct cgroup *cgroup),
  83
  84        TP_ARGS(cgroup)
  85);
  86
  87DEFINE_EVENT(cgroup, cgroup_rmdir,
  88
  89        TP_PROTO(struct cgroup *cgroup),
  90
  91        TP_ARGS(cgroup)
  92);
  93
  94DEFINE_EVENT(cgroup, cgroup_release,
  95
  96        TP_PROTO(struct cgroup *cgroup),
  97
  98        TP_ARGS(cgroup)
  99);
 100
 101DEFINE_EVENT(cgroup, cgroup_rename,
 102
 103        TP_PROTO(struct cgroup *cgroup),
 104
 105        TP_ARGS(cgroup)
 106);
 107
 108DECLARE_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
 139DEFINE_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
 146DEFINE_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>
 157