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TOMOYO Linux Cross Reference
Linux/fs/f2fs/trace.h

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  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 
 17 enum 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 
 27 struct 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 
 35 extern void f2fs_trace_pid(struct page *);
 36 extern void f2fs_trace_ios(struct f2fs_io_info *, int);
 37 extern void f2fs_build_trace_ios(void);
 38 extern void f2fs_destroy_trace_ios(void);
 39 #else
 40 #define f2fs_trace_pid(p)
 41 #define f2fs_trace_ios(i, n)
 42 #define f2fs_build_trace_ios()
 43 #define f2fs_destroy_trace_ios()
 44 
 45 #endif
 46 #endif /* __F2FS_TRACE_H__ */
 47 

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