[PATCH] f2fs: fix wrong description of compress feature in f2fs.rst

[Chao Yu]

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@xxxxxxxxxx>
---
 Documentation/filesystems/f2fs.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst
index 535021c46260..de43239a3c31 100644
--- 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:
 
-- 
2.26.2