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>
- 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: