# V5 features that were the mkfs defaults when the upstream Linux 5.15 LTS # kernel was released at the end of 2021. [metadata] bigtime=1 crc=1 finobt=1 inobtcount=1 reflink=1 rmapbt=0 autofsck=0 [inode] sparse=1 nrext64=0 exchange=0 [naming] parent=0