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,		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 
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 DEFINE_EVENT(cgroup, cgroup_freeze,
107 
108 	TP_PROTO(struct cgroup *cgrp, const char *path),
109 
110 	TP_ARGS(cgrp, path)
111 );
112 
113 DEFINE_EVENT(cgroup, cgroup_unfreeze,
114 
115 	TP_PROTO(struct cgroup *cgrp, const char *path),
116 
117 	TP_ARGS(cgrp, path)
118 );
119 
120 DECLARE_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 
150 DEFINE_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 
158 DEFINE_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 
166 DECLARE_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 
193 DEFINE_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 
200 DEFINE_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