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
  24 struct file_operations;
  25
  26 #ifdef CONFIG_TRACING
  27
  28 struct dentry *tracefs_create_file(const char *name, umode_t mode,
  29                                    struct dentry *parent, void *data,
  30                                    const struct file_operations *fops);
  31
  32 struct dentry *tracefs_create_dir(const char *name, struct dentry *parent);
  33
  34 void tracefs_remove(struct dentry *dentry);
  35 void tracefs_remove_recursive(struct dentry *dentry);
  36
  37 struct dentry *tracefs_create_instance_dir(const char *name, struct dentry *parent,
  38                                            int (*mkdir)(const char *name),
  39                                            int (*rmdir)(const char *name));
  40
  41 bool tracefs_initialized(void);
  42
  43 #endif /* CONFIG_TRACING */
  44
  45 #endif