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,		level			)
63		__field(	u64,		id			)
64		__string(	path,		path			)
65	),
66
67	TP_fast_assign(
68		__entry->root = cgrp->root->hierarchy_id;
69		__entry->id = cgroup_id(cgrp);
70		__entry->level = cgrp->level;
71		__assign_str(path, path);
72	),
73
74	TP_printk("root=%d id=%llu 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_level		)
130		__field(	u64,		dst_id			)
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 = cgroup_id(dst_cgrp);
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=%llu 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,		level			)
175		__field(	u64,		id			)
176		__string(	path,		path			)
177		__field(	int,		val			)
178	),
179
180	TP_fast_assign(
181		__entry->root = cgrp->root->hierarchy_id;
182		__entry->id = cgroup_id(cgrp);
183		__entry->level = cgrp->level;
184		__assign_str(path, path);
185		__entry->val = val;
186	),
187
188	TP_printk("root=%d id=%llu 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