Release 4.11 fs/f2fs/trace.h

/*
 * f2fs IO tracer
 *
 * Copyright (c) 2014 Motorola Mobility
 * Copyright (c) 2014 Jaegeuk Kim <jaegeuk@kernel.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#ifndef __F2FS_TRACE_H__

#define __F2FS_TRACE_H__

#ifdef CONFIG_F2FS_IO_TRACE
#include <trace/events/f2fs.h>


enum file_type {
	
__NORMAL_FILE,
	
__DIR_FILE,
	
__NODE_FILE,
	
__META_FILE,
	
__ATOMIC_FILE,
	
__VOLATILE_FILE,
	
__MISC_FILE,
};


struct last_io_info {
	

int major, minor;
	
pid_t pid;
	
enum file_type type;
	
struct f2fs_io_info fio;
	
block_t len;
};

extern void f2fs_trace_pid(struct page *);
extern void f2fs_trace_ios(struct f2fs_io_info *, int);
extern void f2fs_build_trace_ios(void);
extern void f2fs_destroy_trace_ios(void);
#else

#define f2fs_trace_pid(p)

#define f2fs_trace_ios(i, n)

#define f2fs_build_trace_ios()

#define f2fs_destroy_trace_ios()

#endif
#endif /* __F2FS_TRACE_H__ */
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Directory: fs/f2fs

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