diff options
Diffstat (limited to 'lib/btrfsprogs')
| -rw-r--r-- | lib/btrfsprogs/btrfsinspect/scandevices.go | 98 |
1 files changed, 53 insertions, 45 deletions
diff --git a/lib/btrfsprogs/btrfsinspect/scandevices.go b/lib/btrfsprogs/btrfsinspect/scandevices.go index 628995a..4058663 100644 --- a/lib/btrfsprogs/btrfsinspect/scandevices.go +++ b/lib/btrfsprogs/btrfsinspect/scandevices.go @@ -1,4 +1,4 @@ -// Copyright (C) 2022 Luke Shumaker <lukeshu@lukeshu.com> +// Copyright (C) 2022-2023 Luke Shumaker <lukeshu@lukeshu.com> // // SPDX-License-Identifier: GPL-2.0-or-later @@ -176,57 +176,65 @@ func ScanOneDevice(ctx context.Context, dev *btrfs.Device, sb btrfstree.Superblo for i, item := range nodeRef.Data.BodyLeaf { switch item.Key.ItemType { case btrfsitem.CHUNK_ITEM_KEY: - chunk, ok := item.Body.(btrfsitem.Chunk) - if !ok { - dlog.Errorf(ctx, "node@%v: item %v: error: type is CHUNK_ITEM_KEY, but struct is %T", - nodeRef.Addr, i, item.Body) - continue + switch itemBody := item.Body.(type) { + case btrfsitem.Chunk: + dlog.Tracef(ctx, "node@%v: item %v: found chunk", + nodeRef.Addr, i) + result.FoundChunks = append(result.FoundChunks, btrfstree.SysChunk{ + Key: item.Key, + Chunk: itemBody, + }) + case btrfsitem.Error: + dlog.Errorf(ctx, "node@%v: item %v: error: malformed CHUNK_ITEM: %v", + nodeRef.Addr, i, itemBody.Err) + default: + panic(fmt.Errorf("should not happen: CHUNK_ITEM has unexpected item type: %T", itemBody)) } - dlog.Tracef(ctx, "node@%v: item %v: found chunk", - nodeRef.Addr, i) - result.FoundChunks = append(result.FoundChunks, btrfstree.SysChunk{ - Key: item.Key, - Chunk: chunk, - }) case btrfsitem.BLOCK_GROUP_ITEM_KEY: - bg, ok := item.Body.(btrfsitem.BlockGroup) - if !ok { - dlog.Errorf(ctx, "node@%v: item %v: error: type is BLOCK_GROUP_ITEM_KEY, but struct is %T", - nodeRef.Addr, i, item.Body) - continue + switch itemBody := item.Body.(type) { + case btrfsitem.BlockGroup: + dlog.Tracef(ctx, "node@%v: item %v: found block group", + nodeRef.Addr, i) + result.FoundBlockGroups = append(result.FoundBlockGroups, SysBlockGroup{ + Key: item.Key, + BG: itemBody, + }) + case btrfsitem.Error: + dlog.Errorf(ctx, "node@%v: item %v: error: malformed BLOCK_GROUP_ITEM: %v", + nodeRef.Addr, i, itemBody.Err) + default: + panic(fmt.Errorf("should not happen: BLOCK_GROUP_ITEM has unexpected item type: %T", itemBody)) } - dlog.Tracef(ctx, "node@%v: item %v: found block group", - nodeRef.Addr, i) - result.FoundBlockGroups = append(result.FoundBlockGroups, SysBlockGroup{ - Key: item.Key, - BG: bg, - }) case btrfsitem.DEV_EXTENT_KEY: - devext, ok := item.Body.(btrfsitem.DevExtent) - if !ok { - dlog.Errorf(ctx, "node@%v: item %v: error: type is DEV_EXTENT_KEY, but struct is %T", - nodeRef.Addr, i, item.Body) - continue + switch itemBody := item.Body.(type) { + case btrfsitem.DevExtent: + dlog.Tracef(ctx, "node@%v: item %v: found dev extent", + nodeRef.Addr, i) + result.FoundDevExtents = append(result.FoundDevExtents, SysDevExtent{ + Key: item.Key, + DevExt: itemBody, + }) + case btrfsitem.Error: + dlog.Errorf(ctx, "node@%v: item %v: error: malformed DEV_EXTENT: %v", + nodeRef.Addr, i, itemBody.Err) + default: + panic(fmt.Errorf("should not happen: DEV_EXTENT has unexpected item type: %T", itemBody)) } - dlog.Tracef(ctx, "node@%v: item %v: found dev extent", - nodeRef.Addr, i) - result.FoundDevExtents = append(result.FoundDevExtents, SysDevExtent{ - Key: item.Key, - DevExt: devext, - }) case btrfsitem.EXTENT_CSUM_KEY: - sums, ok := item.Body.(btrfsitem.ExtentCSum) - if !ok { - dlog.Errorf(ctx, "node@%v: item %v: error: type is EXTENT_CSUM_OBJECTID, but struct is %T", - nodeRef.Addr, i, item.Body) - continue + switch itemBody := item.Body.(type) { + case btrfsitem.ExtentCSum: + dlog.Tracef(ctx, "node@%v: item %v: found csums", + nodeRef.Addr, i) + result.FoundExtentCSums = append(result.FoundExtentCSums, SysExtentCSum{ + Generation: nodeRef.Data.Head.Generation, + Sums: itemBody, + }) + case btrfsitem.Error: + dlog.Errorf(ctx, "node@%v: item %v: error: malformed is EXTENT_CSUM: %v", + nodeRef.Addr, i, itemBody.Err) + default: + panic(fmt.Errorf("should not happen: EXTENT_CSUM has unexpected item type: %T", itemBody)) } - dlog.Tracef(ctx, "node@%v: item %v: found csums", - nodeRef.Addr, i) - result.FoundExtentCSums = append(result.FoundExtentCSums, SysExtentCSum{ - Generation: nodeRef.Data.Head.Generation, - Sums: sums, - }) } } minNextNode = pos + btrfsvol.PhysicalAddr(sb.NodeSize) |