diff options
Diffstat (limited to 'lib/btrfs/btrfsitem/item_freespaceinfo.go')
| -rw-r--r-- | lib/btrfs/btrfsitem/item_freespaceinfo.go | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/btrfs/btrfsitem/item_freespaceinfo.go b/lib/btrfs/btrfsitem/item_freespaceinfo.go index 9b886af..7782d27 100644 --- a/lib/btrfs/btrfsitem/item_freespaceinfo.go +++ b/lib/btrfs/btrfsitem/item_freespaceinfo.go @@ -9,8 +9,14 @@ import ( "git.lukeshu.com/btrfs-progs-ng/lib/fmtutil" ) -// key.objectid = object ID of the BlockGroup (logical_addr) -// key.offset = offset of the BlockGroup (size) +// FreeSpaceInfo is the main way (v2) that free space is tracked in a +// BlockGroup. For highly-fragmented blockgorups, it may be augmented +// by a FreeSpaceBitmap. +// +// Key: +// +// key.objectid = object ID of the BlockGroup (logical_addr) +// key.offset = offset of the BlockGroup (size) type FreeSpaceInfo struct { // trivial FREE_SPACE_INFO=198 ExtentCount int32 `bin:"off=0, siz=4"` Flags FreeSpaceFlags `bin:"off=4, siz=4"` |