| /* |
| * 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__ */ |