1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * f2fs IO tracer
 4 *
 5 * Copyright (c) 2014 Motorola Mobility
 6 * Copyright (c) 2014 Jaegeuk Kim <jaegeuk@kernel.org>
 7 */
 8#ifndef __F2FS_TRACE_H__
 9#define __F2FS_TRACE_H__
10
11#ifdef CONFIG_F2FS_IO_TRACE
12#include <trace/events/f2fs.h>
13
14enum file_type {
15	__NORMAL_FILE,
16	__DIR_FILE,
17	__NODE_FILE,
18	__META_FILE,
19	__ATOMIC_FILE,
20	__VOLATILE_FILE,
21	__MISC_FILE,
22};
23
24struct last_io_info {
25	int major, minor;
26	pid_t pid;
27	enum file_type type;
28	struct f2fs_io_info fio;
29	block_t len;
30};
31
32extern void f2fs_trace_pid(struct page *);
33extern void f2fs_trace_ios(struct f2fs_io_info *, int);
34extern void f2fs_build_trace_ios(void);
35extern void f2fs_destroy_trace_ios(void);
36#else
37#define f2fs_trace_pid(p)
38#define f2fs_trace_ios(i, n)
39#define f2fs_build_trace_ios()
40#define f2fs_destroy_trace_ios()
41
42#endif
43#endif /* __F2FS_TRACE_H__ */