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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* tracefs.h - a pseudo file system for activating tracing
*
* Based on debugfs by: 2004 Greg Kroah-Hartman <greg@kroah.com>
*
* Copyright (C) 2014 Red Hat Inc, author: Steven Rostedt <srostedt@redhat.com>
*
* tracefs is the file system that is used by the tracing infrastructure.
*/
#ifndef _TRACEFS_H_
#define _TRACEFS_H_
#include <linux/fs.h>
#include <linux/seq_file.h>
#include <linux/types.h>
struct file_operations;
#ifdef CONFIG_TRACING
struct eventfs_file;
struct dentry *eventfs_create_events_dir(const char *name,
struct dentry *parent);
struct eventfs_file *eventfs_add_subsystem_dir(const char *name,
struct dentry *parent);
struct eventfs_file *eventfs_add_dir(const char *name,
struct eventfs_file *ef_parent);
int eventfs_add_file(const char *name, umode_t mode,
struct eventfs_file *ef_parent, void *data,
const struct file_operations *fops);
int eventfs_add_events_file(const char *name, umode_t mode,
struct dentry *parent, void *data,
const struct file_operations *fops);
void eventfs_remove(struct eventfs_file *ef);
void eventfs_remove_events_dir(struct dentry *dentry);
struct dentry *tracefs_create_file(const char *name, umode_t mode,
struct dentry *parent, void *data,
const struct file_operations *fops);
struct dentry *tracefs_create_dir(const char *name, struct dentry *parent);
void tracefs_remove(struct dentry *dentry);
struct dentry *tracefs_create_instance_dir(const char *name, struct dentry *parent,
int (*mkdir)(const char *name),
int (*rmdir)(const char *name));
bool tracefs_initialized(void);
#endif /* CONFIG_TRACING */
#endif
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