1/*
2 * f2fs IO tracer
3 *
4 * Copyright (c) 2014 Motorola Mobility
5 * Copyright (c) 2014 Jaegeuk Kim <jaegeuk@kernel.org>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#ifndef __F2FS_TRACE_H__
12#define __F2FS_TRACE_H__
13
14#ifdef CONFIG_F2FS_IO_TRACE
15#include <trace/events/f2fs.h>
16
17enum file_type {
18	__NORMAL_FILE,
19	__DIR_FILE,
20	__NODE_FILE,
21	__META_FILE,
22	__ATOMIC_FILE,
23	__VOLATILE_FILE,
24	__MISC_FILE,
25};
26
27struct last_io_info {
28	int major, minor;
29	pid_t pid;
30	enum file_type type;
31	struct f2fs_io_info fio;
32	block_t len;
33};
34
35extern void f2fs_trace_pid(struct page *);
36extern void f2fs_trace_ios(struct page *, struct f2fs_io_info *, int);
37extern void f2fs_build_trace_ios(void);
38extern void f2fs_destroy_trace_ios(void);
39#else
40#define f2fs_trace_pid(p)
41#define f2fs_trace_ios(p, i, n)
42#define f2fs_build_trace_ios()
43#define f2fs_destroy_trace_ios()
44
45#endif
46#endif /* __F2FS_TRACE_H__ */
47