blob: c7707bdd6f0e4009053e584aa3b5c0f572233d8f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
package btrfsitem
import (
"lukeshu.com/btrfs-tools/pkg/binstruct"
"lukeshu.com/btrfs-tools/pkg/btrfs/btrfsvol"
"lukeshu.com/btrfs-tools/pkg/btrfs/internal"
"lukeshu.com/btrfs-tools/pkg/util"
)
// key.objectid = device_id
// key.offset = physical_addr
type DevExtent struct { // DEV_EXTENT=204
ChunkTree int64 `bin:"off=0, siz=8"`
ChunkObjectID internal.ObjID `bin:"off=8, siz=8"`
ChunkOffset btrfsvol.LogicalAddr `bin:"off=16, siz=8"`
Length btrfsvol.AddrDelta `bin:"off=24, siz=8"`
ChunkTreeUUID util.UUID `bin:"off=32, siz=16"`
binstruct.End `bin:"off=48"`
}
func (devext DevExtent) Mapping(key internal.Key) btrfsvol.Mapping {
return btrfsvol.Mapping{
LAddr: devext.ChunkOffset,
PAddr: btrfsvol.QualifiedPhysicalAddr{
Dev: btrfsvol.DeviceID(key.ObjectID),
Addr: btrfsvol.PhysicalAddr(key.Offset),
},
Size: devext.Length,
Flags: nil,
}
}
|