f2fs: add noextent_cache mount option
This patch adds noextent_cache mount option.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt
index e9e750e..e2d5105 100644
--- a/Documentation/filesystems/f2fs.txt
+++ b/Documentation/filesystems/f2fs.txt
@@ -143,7 +143,9 @@
extent_cache Enable an extent cache based on rb-tree, it can cache
as many as extent which map between contiguous logical
address and physical address per inode, resulting in
- increasing the cache hit ratio.
+ increasing the cache hit ratio. Set by default.
+noextent_cache Diable an extent cache based on rb-tree explicitly, see
+ the above extent_cache mount option.
noinline_data Disable the inline data feature, inline data feature is
enabled by default.