LXR linux/include/linux/tracefs.h

   1/*
   2 *  tracefs.h - a pseudo file system for activating tracing
   3 *
   4 * Based on debugfs by: 2004 Greg Kroah-Hartman <greg@kroah.com>
   5 *
   6 *  Copyright (C) 2014 Red Hat Inc, author: Steven Rostedt <srostedt@redhat.com>
   7 *
   8 *      This program is free software; you can redistribute it and/or
   9 *      modify it under the terms of the GNU General Public License version
  10 *      2 as published by the Free Software Foundation.
  11 *
  12 * tracefs is the file system that is used by the tracing infrastructure.
  13 *
  14 */
  15
  16#ifndef _TRACEFS_H_
  17#define _TRACEFS_H_
  18
  19#include <linux/fs.h>
  20#include <linux/seq_file.h>
  21
  22#include <linux/types.h>
  23
  24struct file_operations;
  25
  26#ifdef CONFIG_TRACING
  27
  28struct dentry *tracefs_create_file(const char *name, umode_t mode,
  29                                   struct dentry *parent, void *data,
  30                                   const struct file_operations *fops);
  31
  32struct dentry *tracefs_create_dir(const char *name, struct dentry *parent);
  33
  34void tracefs_remove(struct dentry *dentry);
  35void tracefs_remove_recursive(struct dentry *dentry);
  36
  37struct dentry *tracefs_create_instance_dir(const char *name, struct dentry *parent,
  38                                           int (*mkdir)(const char *name),
  39                                           int (*rmdir)(const char *name));
  40
  41bool tracefs_initialized(void);
  42
  43#endif /* CONFIG_TRACING */
  44
  45#endif
  46