From 53a2ce3b4dcbfd17ac15230da17130a2aeae42dc Mon Sep 17 00:00:00 2001 From: Luke Shumaker Date: Mon, 17 Oct 2022 00:15:06 -0600 Subject: Add and improve comments --- lib/btrfs/btrfsitem/item_devextent.go | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'lib/btrfs/btrfsitem/item_devextent.go') diff --git a/lib/btrfs/btrfsitem/item_devextent.go b/lib/btrfs/btrfsitem/item_devextent.go index 8f5f05c..47bdbcf 100644 --- a/lib/btrfs/btrfsitem/item_devextent.go +++ b/lib/btrfs/btrfsitem/item_devextent.go @@ -13,9 +13,9 @@ import ( // key.objectid = device_id // key.offset = physical_addr type DevExtent struct { // DEV_EXTENT=204 - ChunkTree int64 `bin:"off=0, siz=8"` - ChunkObjectID btrfsprim.ObjID `bin:"off=8, siz=8"` - ChunkOffset btrfsvol.LogicalAddr `bin:"off=16, siz=8"` + ChunkTree btrfsprim.ObjID `bin:"off=0, siz=8"` // always CHUNK_TREE_OBJECTID + ChunkObjectID btrfsprim.ObjID `bin:"off=8, siz=8"` // which chunk within .ChunkTree owns this extent, always FIRST_CHUNK_TREE_OBJECTID + ChunkOffset btrfsvol.LogicalAddr `bin:"off=16, siz=8"` // offset of the CHUNK_ITEM that owns this extent, within the .ChunkObjectID Length btrfsvol.AddrDelta `bin:"off=24, siz=8"` ChunkTreeUUID btrfsprim.UUID `bin:"off=32, siz=16"` binstruct.End `bin:"off=48"` -- cgit v1.2.3-2-g168b