Module space 

Block group space usage: how much space each chunk type allocates and uses

Reports the allocated and used byte counts for each combination of block group type (data, metadata, system) and RAID profile. This is the data underlying the btrfs filesystem df command.

Structs

BlockGroupFlags

Block group / chunk type flags: the combination of chunk type (DATA, SYSTEM, METADATA) and RAID profile stored in on-disk chunk items and block group items.

SpaceInfo

Space usage information for one block group type/profile combination.

Functions

space_info

Query space usage by block group type for the filesystem referred to by fd.