trace/events/cgroup.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #undef TRACE_SYSTEM
0003 #define TRACE_SYSTEM cgroup
0004
0005 #if !defined(_TRACE_CGROUP_H) || defined(TRACE_HEADER_MULTI_READ)
0006 #define _TRACE_CGROUP_H
0007
0008 #include <linux/cgroup.h>
0009 #include <linux/tracepoint.h>
0010
0011 DECLARE_EVENT_CLASS(cgroup_root,
0012
0013     TP_PROTO(struct cgroup_root *root),
0014
0015     TP_ARGS(root),
0016
0017     TP_STRUCT__entry(
0018         __field(    int,        root            )
0019         __field(    u16,        ss_mask         )
0020         __string(   name,       root->name      )
0021     ),
0022
0023     TP_fast_assign(
0024         __entry->root = root->hierarchy_id;
0025         __entry->ss_mask = root->subsys_mask;
0026         __assign_str(name, root->name);
0027     ),
0028
0029     TP_printk("root=%d ss_mask=%#x name=%s",
0030           __entry->root, __entry->ss_mask, __get_str(name))
0031 );
0032
0033 DEFINE_EVENT(cgroup_root, cgroup_setup_root,
0034
0035     TP_PROTO(struct cgroup_root *root),
0036
0037     TP_ARGS(root)
0038 );
0039
0040 DEFINE_EVENT(cgroup_root, cgroup_destroy_root,
0041
0042     TP_PROTO(struct cgroup_root *root),
0043
0044     TP_ARGS(root)
0045 );
0046
0047 DEFINE_EVENT(cgroup_root, cgroup_remount,
0048
0049     TP_PROTO(struct cgroup_root *root),
0050
0051     TP_ARGS(root)
0052 );
0053
0054 DECLARE_EVENT_CLASS(cgroup,
0055
0056     TP_PROTO(struct cgroup *cgrp, const char *path),
0057
0058     TP_ARGS(cgrp, path),
0059
0060     TP_STRUCT__entry(
0061         __field(    int,        root            )
0062         __field(    int,        level           )
0063         __field(    u64,        id          )
0064         __string(   path,       path            )
0065     ),
0066
0067     TP_fast_assign(
0068         __entry->root = cgrp->root->hierarchy_id;
0069         __entry->id = cgroup_id(cgrp);
0070         __entry->level = cgrp->level;
0071         __assign_str(path, path);
0072     ),
0073
0074     TP_printk("root=%d id=%llu level=%d path=%s",
0075           __entry->root, __entry->id, __entry->level, __get_str(path))
0076 );
0077
0078 DEFINE_EVENT(cgroup, cgroup_mkdir,
0079
0080     TP_PROTO(struct cgroup *cgrp, const char *path),
0081
0082     TP_ARGS(cgrp, path)
0083 );
0084
0085 DEFINE_EVENT(cgroup, cgroup_rmdir,
0086
0087     TP_PROTO(struct cgroup *cgrp, const char *path),
0088
0089     TP_ARGS(cgrp, path)
0090 );
0091
0092 DEFINE_EVENT(cgroup, cgroup_release,
0093
0094     TP_PROTO(struct cgroup *cgrp, const char *path),
0095
0096     TP_ARGS(cgrp, path)
0097 );
0098
0099 DEFINE_EVENT(cgroup, cgroup_rename,
0100
0101     TP_PROTO(struct cgroup *cgrp, const char *path),
0102
0103     TP_ARGS(cgrp, path)
0104 );
0105
0106 DEFINE_EVENT(cgroup, cgroup_freeze,
0107
0108     TP_PROTO(struct cgroup *cgrp, const char *path),
0109
0110     TP_ARGS(cgrp, path)
0111 );
0112
0113 DEFINE_EVENT(cgroup, cgroup_unfreeze,
0114
0115     TP_PROTO(struct cgroup *cgrp, const char *path),
0116
0117     TP_ARGS(cgrp, path)
0118 );
0119
0120 DECLARE_EVENT_CLASS(cgroup_migrate,
0121
0122     TP_PROTO(struct cgroup *dst_cgrp, const char *path,
0123          struct task_struct *task, bool threadgroup),
0124
0125     TP_ARGS(dst_cgrp, path, task, threadgroup),
0126
0127     TP_STRUCT__entry(
0128         __field(    int,        dst_root        )
0129         __field(    int,        dst_level       )
0130         __field(    u64,        dst_id          )
0131         __field(    int,        pid         )
0132         __string(   dst_path,   path            )
0133         __string(   comm,       task->comm      )
0134     ),
0135
0136     TP_fast_assign(
0137         __entry->dst_root = dst_cgrp->root->hierarchy_id;
0138         __entry->dst_id = cgroup_id(dst_cgrp);
0139         __entry->dst_level = dst_cgrp->level;
0140         __assign_str(dst_path, path);
0141         __entry->pid = task->pid;
0142         __assign_str(comm, task->comm);
0143     ),
0144
0145     TP_printk("dst_root=%d dst_id=%llu dst_level=%d dst_path=%s pid=%d comm=%s",
0146           __entry->dst_root, __entry->dst_id, __entry->dst_level,
0147           __get_str(dst_path), __entry->pid, __get_str(comm))
0148 );
0149
0150 DEFINE_EVENT(cgroup_migrate, cgroup_attach_task,
0151
0152     TP_PROTO(struct cgroup *dst_cgrp, const char *path,
0153          struct task_struct *task, bool threadgroup),
0154
0155     TP_ARGS(dst_cgrp, path, task, threadgroup)
0156 );
0157
0158 DEFINE_EVENT(cgroup_migrate, cgroup_transfer_tasks,
0159
0160     TP_PROTO(struct cgroup *dst_cgrp, const char *path,
0161          struct task_struct *task, bool threadgroup),
0162
0163     TP_ARGS(dst_cgrp, path, task, threadgroup)
0164 );
0165
0166 DECLARE_EVENT_CLASS(cgroup_event,
0167
0168     TP_PROTO(struct cgroup *cgrp, const char *path, int val),
0169
0170     TP_ARGS(cgrp, path, val),
0171
0172     TP_STRUCT__entry(
0173         __field(    int,        root            )
0174         __field(    int,        level           )
0175         __field(    u64,        id          )
0176         __string(   path,       path            )
0177         __field(    int,        val         )
0178     ),
0179
0180     TP_fast_assign(
0181         __entry->root = cgrp->root->hierarchy_id;
0182         __entry->id = cgroup_id(cgrp);
0183         __entry->level = cgrp->level;
0184         __assign_str(path, path);
0185         __entry->val = val;
0186     ),
0187
0188     TP_printk("root=%d id=%llu level=%d path=%s val=%d",
0189           __entry->root, __entry->id, __entry->level, __get_str(path),
0190           __entry->val)
0191 );
0192
0193 DEFINE_EVENT(cgroup_event, cgroup_notify_populated,
0194
0195     TP_PROTO(struct cgroup *cgrp, const char *path, int val),
0196
0197     TP_ARGS(cgrp, path, val)
0198 );
0199
0200 DEFINE_EVENT(cgroup_event, cgroup_notify_frozen,
0201
0202     TP_PROTO(struct cgroup *cgrp, const char *path, int val),
0203
0204     TP_ARGS(cgrp, path, val)
0205 );
0206
0207 #endif /* _TRACE_CGROUP_H */
0208
0209 /* This part must be outside protection */
0210 #include <trace/define_trace.h>