f2fs: fix wrong description of compress feature in f2fs.rst

f2fs will try compressing data in cluster only when "all logical
blocks in cluster contain valid data" rather than "all logical
blocks in file are valid".

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst
index 535021c46260799ff214c04c014a5903dc3cdfb4..de43239a3c3195ca90d83d3fc115acf90e137719 100644 (file)
--- a/Documentation/filesystems/f2fs.rst
+++ b/Documentation/filesystems/f2fs.rst
@@ -739,8 +739,8 @@ Compression implementation
 
 - In order to eliminate write amplification during overwrite, F2FS only
   support compression on write-once file, data can be compressed only when
-  all logical blocks in file are valid and cluster compress ratio is lower
-  than specified threshold.
+  all logical blocks in cluster contain valid data and compress ratio of
+  cluster data is lower than specified threshold.
 
 - To enable compression on regular inode, there are three ways: