cgroup.h
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#undef TRACE_SYSTEM
#define TRACE_SYSTEM cgroup
#if !defined(_TRACE_CGROUP_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_CGROUP_H
#include <linux/cgroup.h>
#include <linux/tracepoint.h>
DECLARE_EVENT_CLASS(cgroup_root,
TP_PROTO(struct cgroup_root *root),
TP_ARGS(root),
TP_STRUCT__entry(
__field( int, root )
__field( u16, ss_mask )
__string( name, root->name )
),
TP_fast_assign(
__entry->root = root->hierarchy_id;
__entry->ss_mask = root->subsys_mask;
__assign_str(name, root->name);
),
TP_printk("root=%d ss_mask=%#x name=%s",
__entry->root, __entry->ss_mask, __get_str(name))
);
DEFINE_EVENT(cgroup_root, cgroup_setup_root,
TP_PROTO(struct cgroup_root *root),
TP_ARGS(root)
);
DEFINE_EVENT(cgroup_root, cgroup_destroy_root,
TP_PROTO(struct cgroup_root *root),
TP_ARGS(root)
);
DEFINE_EVENT(cgroup_root, cgroup_remount,
TP_PROTO(struct cgroup_root *root),
TP_ARGS(root)
);
DECLARE_EVENT_CLASS(cgroup,
TP_PROTO(struct cgroup *cgrp),
TP_ARGS(cgrp),
TP_STRUCT__entry(
__field( int, root )
__field( int, id )
__field( int, level )
__dynamic_array(char, path,
cgrp->kn ? cgroup_path(cgrp, NULL, 0) + 1
: strlen("(null)"))
),
TP_fast_assign(
__entry->root = cgrp->root->hierarchy_id;
__entry->id = cgrp->id;
__entry->level = cgrp->level;
if (cgrp->kn)
cgroup_path(cgrp, __get_dynamic_array(path),
__get_dynamic_array_len(path));
else
__assign_str(path, "(null)");
),
TP_printk("root=%d id=%d level=%d path=%s",
__entry->root, __entry->id, __entry->level, __get_str(path))
);
DEFINE_EVENT(cgroup, cgroup_mkdir,
TP_PROTO(struct cgroup *cgroup),
TP_ARGS(cgroup)
);
DEFINE_EVENT(cgroup, cgroup_rmdir,
TP_PROTO(struct cgroup *cgroup),
TP_ARGS(cgroup)
);
DEFINE_EVENT(cgroup, cgroup_release,
TP_PROTO(struct cgroup *cgroup),
TP_ARGS(cgroup)
);
DEFINE_EVENT(cgroup, cgroup_rename,
TP_PROTO(struct cgroup *cgroup),
TP_ARGS(cgroup)
);
DECLARE_EVENT_CLASS(cgroup_migrate,
TP_PROTO(struct cgroup *dst_cgrp, struct task_struct *task, bool threadgroup),
TP_ARGS(dst_cgrp, task, threadgroup),
TP_STRUCT__entry(
__field( int, dst_root )
__field( int, dst_id )
__field( int, dst_level )
__dynamic_array(char, dst_path,
dst_cgrp->kn ? cgroup_path(dst_cgrp, NULL, 0) + 1
: strlen("(null)"))
__field( int, pid )
__string( comm, task->comm )
),
TP_fast_assign(
__entry->dst_root = dst_cgrp->root->hierarchy_id;
__entry->dst_id = dst_cgrp->id;
__entry->dst_level = dst_cgrp->level;
if (dst_cgrp->kn)
cgroup_path(dst_cgrp, __get_dynamic_array(dst_path),
__get_dynamic_array_len(dst_path));
else
__assign_str(dst_path, "(null)");
__entry->pid = task->pid;
__assign_str(comm, task->comm);
),
TP_printk("dst_root=%d dst_id=%d dst_level=%d dst_path=%s pid=%d comm=%s",
__entry->dst_root, __entry->dst_id, __entry->dst_level,
__get_str(dst_path), __entry->pid, __get_str(comm))
);
DEFINE_EVENT(cgroup_migrate, cgroup_attach_task,
TP_PROTO(struct cgroup *dst_cgrp, struct task_struct *task, bool threadgroup),
TP_ARGS(dst_cgrp, task, threadgroup)
);
DEFINE_EVENT(cgroup_migrate, cgroup_transfer_tasks,
TP_PROTO(struct cgroup *dst_cgrp, struct task_struct *task, bool threadgroup),
TP_ARGS(dst_cgrp, task, threadgroup)
);
#endif /* _TRACE_CGROUP_H */
/* This part must be outside protection */
#include <trace/define_trace.h>