Commits

Li Zefan committed 1a419d85a76
btrfs: Allow to specify compress method when defrag Update defrag ioctl, so one can choose lzo or zlib when turning on compression in defrag operation. Changelog: v1 -> v2 - Add incompability flag. - Fix to check invalid compress type. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>