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path: root/lib/btrfs/btrfsitem/item_rootref.go
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Diffstat (limited to 'lib/btrfs/btrfsitem/item_rootref.go')
-rw-r--r--lib/btrfs/btrfsitem/item_rootref.go4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/btrfs/btrfsitem/item_rootref.go b/lib/btrfs/btrfsitem/item_rootref.go
index 4179890..e40b278 100644
--- a/lib/btrfs/btrfsitem/item_rootref.go
+++ b/lib/btrfs/btrfsitem/item_rootref.go
@@ -12,10 +12,12 @@ import (
"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsprim"
)
-// RootRefs link subvolumes parent→child for normal subvolumes and
+// A RootRef links subvolumes parent→child for normal subvolumes and
// base→snapshot for snapshot subvolumes. BACKREF items go the other
// direction; child→parent and snapshot→base.
//
+// Key:
+//
// ROOT_REF | ROOT_BACKREF
// key.objectid = ID of the parent subvolume | ID of the child subvolume
// key.offset = ID of the child subvolume | ID of the parent subvolume