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authorJaegeuk Kim <jaegeuk@kernel.org>2014-12-18 06:45:05 +0300
committerJaegeuk Kim <jaegeuk@kernel.org>2015-01-10 04:02:24 +0300
commit63f92ddc8aee18838441179064338702a93326a9 (patch)
tree42cf7109edcebe2bebb8dca7f4419721a32231db /fs/f2fs/Kconfig
parentcf04e8eb55290c7b836c36f0b4e1a8d0fe8ee275 (diff)
downloadlinux-63f92ddc8aee18838441179064338702a93326a9.tar.xz
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/Kconfig')
-rw-r--r--fs/f2fs/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/f2fs/Kconfig b/fs/f2fs/Kconfig
index 736a348509f7..94e2d2ffabe1 100644
--- a/fs/f2fs/Kconfig
+++ b/fs/f2fs/Kconfig
@@ -71,3 +71,13 @@ config F2FS_CHECK_FS
Enables BUG_ONs which check the filesystem consistency in runtime.
If you want to improve the performance, say N.
+
+config F2FS_IO_TRACE
+ bool "F2FS IO tracer"
+ depends on F2FS_FS
+ depends on FUNCTION_TRACER
+ help
+ F2FS IO trace is based on a function trace, which gathers process
+ information and block IO patterns in the filesystem level.
+
+ If unsure, say N.