1 files changed, 7 insertions, 0 deletions

diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt
index 8eb06b0a7d2b..803784e1e8ef 100644
--- a/Documentation/filesystems/f2fs.txt
+++ b/Documentation/filesystems/f2fs.txt
@@ -195,6 +195,13 @@ Files in /sys/fs/f2fs/<devname>
                               cleaning operations. The default value is 4096
                               which covers 8GB block address range.
 
+ dir_level                    This parameter controls the directory level to
+                              support large directory. If a directory has a
+                              number of files, it can reduce the file lookup
+                              latency by increasing this dir_level value.
+                              Otherwise, it needs to decrease this value to
+                              reduce the space overhead. The default value is 0.
+
 ================================================================================
 USAGE
 ================================================================================