better volume!

4 files changed, 18 insertions, 23 deletions

diff --git a/cmd/btrfs-dbg/main.go b/cmd/btrfs-dbg/main.go
index 62b005c..3f30915 100644
--- a/cmd/btrfs-dbg/main.go
+++ b/cmd/btrfs-dbg/main.go
@@ -32,15 +32,15 @@ func Main(imgfilename string) (err error) {
 	defer func() {
 		maybeSetErr(fh.Close())
 	}()
-	fs := &btrfs.FS{
-		Devices: []*btrfs.Device{
-			{
-				File: fh,
-			},
-		},
+	dev := &btrfs.Device{
+		File: fh,
+	}
+	fs := new(btrfs.FS)
+	if err := fs.AddDevice(dev); err != nil {
+		return err
 	}
 
-	superblocks, err := fs.Devices[0].Superblocks()
+	superblocks, err := fs.Superblocks()
 	if err != nil {
 		return err
 	}
@@ -61,7 +61,7 @@ func Main(imgfilename string) (err error) {
 	}
 	spew.Dump(syschunks)
 
-	if err := btrfsmisc.ScanForNodes(fs.Devices[0], superblocks[0].Data, func(nodeRef *util.Ref[btrfs.PhysicalAddr, btrfs.Node], err error) {
+	if err := btrfsmisc.ScanForNodes(dev, superblocks[0].Data, func(nodeRef *util.Ref[btrfs.PhysicalAddr, btrfs.Node], err error) {
 		if err != nil {
 			fmt.Println(err)
 		} else {
diff --git a/cmd/btrfs-dump-tree/main.go b/cmd/btrfs-dump-tree/main.go
index 3c7bcda..9c8e4c5 100644
--- a/cmd/btrfs-dump-tree/main.go
+++ b/cmd/btrfs-dump-tree/main.go
@@ -32,14 +32,11 @@ func Main(imgfilename string) (err error) {
 	defer func() {
 		maybeSetErr(fh.Close())
 	}()
-	fs := &btrfs.FS{
-		Devices: []*btrfs.Device{
-			{
-				File: fh,
-			},
-		},
-	}
 
+	fs := new(btrfs.FS)
+	if err := fs.AddDevice(&btrfs.Device{File: fh}); err != nil {
+		return err
+	}
 	if err := fs.Init(); err != nil {
 		fmt.Printf("(error) %v\n", err)
 	}
diff --git a/cmd/btrfs-fsck/main.go b/cmd/btrfs-fsck/main.go
index c4bfc75..0083bd9 100644
--- a/cmd/btrfs-fsck/main.go
+++ b/cmd/btrfs-fsck/main.go
@@ -28,12 +28,10 @@ func Main(imgfilename string) (err error) {
 	defer func() {
 		maybeSetErr(fh.Close())
 	}()
-	fs := &btrfs.FS{
-		Devices: []*btrfs.Device{
-			{
-				File: fh,
-			},
-		},
+
+	fs := new(btrfs.FS)
+	if err := fs.AddDevice(&btrfs.Device{File: fh}); err != nil {
+		return err
 	}
 
 	superblock, err := pass0(fs)
diff --git a/cmd/btrfs-fsck/pass1.go b/cmd/btrfs-fsck/pass1.go
index 4507313..734ee40 100644
--- a/cmd/btrfs-fsck/pass1.go
+++ b/cmd/btrfs-fsck/pass1.go
@@ -44,7 +44,7 @@ func pass1(fs *btrfs.FS, superblock *util.Ref[btrfs.PhysicalAddr, btrfs.Superblo
 		Size    btrfs.AddrDelta
 		Stripes []btrfsitem.ChunkStripe
 	})
-	for _, dev := range fs.Devices {
+	for _, dev := range fs.Devices() {
 		fmt.Printf("Pass 1: ... dev[%q] scanning for nodes...\n", dev.Name())
 		devResult, err := pass1ScanOneDev(dev, superblock.Data)
 		if err != nil {
@@ -505,7 +505,7 @@ func pass1WriteReconstructedChunks(
 		},
 	}
 
-	for _, dev := range fs.Devices {
+	for _, dev := range fs.Devices() {
 		superblock, _ := dev.Superblock()
 		reconstructedNode.Data.BodyLeaf = append(reconstructedNode.Data.BodyLeaf, btrfs.Item{
 			Head: btrfs.ItemHeader{