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Diffstat (limited to 'fs/f2fs/trace.h')
| -rw-r--r-- | fs/f2fs/trace.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/fs/f2fs/trace.h b/fs/f2fs/trace.h new file mode 100644 index 0000000..1041dbe --- /dev/null +++ b/fs/f2fs/trace.h @@ -0,0 +1,46 @@ +/* + * 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 page *, 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(p, i, n) +#define f2fs_build_trace_ios() +#define f2fs_destroy_trace_ios() + +#endif +#endif /* __F2FS_TRACE_H__ */ |