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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-12-17 19:45:05 -0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-01-09 17:02:24 -0800 |
| commit | 63f92ddc8aee18838441179064338702a93326a9 (patch) | |
| tree | 42cf7109edcebe2bebb8dca7f4419721a32231db /fs/f2fs/trace.h | |
| parent | cf04e8eb55290c7b836c36f0b4e1a8d0fe8ee275 (diff) | |
| download | linux-63f92ddc8aee18838441179064338702a93326a9.tar.bz2 | |
f2fs: add f2fs_io_tracer support
This patch adds:
o initial trace.c and trace.h with skeleton functions
o Kconfig and Makefile to activate this feature
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/trace.h')
| -rw-r--r-- | fs/f2fs/trace.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/fs/f2fs/trace.h b/fs/f2fs/trace.h new file mode 100644 index 000000000000..08856a978d6b --- /dev/null +++ b/fs/f2fs/trace.h @@ -0,0 +1,24 @@ +/* + * 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> + +extern void f2fs_trace_pid(struct page *); +extern void f2fs_trace_ios(struct page *, struct f2fs_io_info *, int); +#else +#define f2fs_trace_pid(p) +#define f2fs_trace_ios(p, i, n) + +#endif +#endif /* __F2FS_TRACE_H__ */ |