1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 *  tracefs.h - a pseudo file system for activating tracing
 4 *
 5 * Based on debugfs by: 2004 Greg Kroah-Hartman <greg@kroah.com>
 6 *
 7 *  Copyright (C) 2014 Red Hat Inc, author: Steven Rostedt <srostedt@redhat.com>
 8 *
 9 * tracefs is the file system that is used by the tracing infrastructure.
10 */
11
12#ifndef _TRACEFS_H_
13#define _TRACEFS_H_
14
15#include <linux/fs.h>
16#include <linux/seq_file.h>
17
18#include <linux/types.h>
19
20struct file_operations;
21
22#ifdef CONFIG_TRACING
23
24struct dentry *tracefs_create_file(const char *name, umode_t mode,
25				   struct dentry *parent, void *data,
26				   const struct file_operations *fops);
27
28struct dentry *tracefs_create_dir(const char *name, struct dentry *parent);
29
30void tracefs_remove(struct dentry *dentry);
31
32struct dentry *tracefs_create_instance_dir(const char *name, struct dentry *parent,
33					   int (*mkdir)(const char *name),
34					   int (*rmdir)(const char *name));
35
36bool tracefs_initialized(void);
37
38#endif /* CONFIG_TRACING */
39
40#endif