# V5 features that were the mkfs defaults when the upstream Linux 4.19 LTS # kernel was released at the end of 2018. [metadata] bigtime=0 crc=1 finobt=1 inobtcount=0 reflink=0 rmapbt=0 autofsck=0 [inode] sparse=1 nrext64=0 exchange=0 [naming] parent=0