diff options
author | Luke Shumaker <lukeshu@lukeshu.com> | 2022-06-05 22:45:47 -0600 |
---|---|---|
committer | Luke Shumaker <lukeshu@lukeshu.com> | 2022-06-05 22:45:47 -0600 |
commit | 5c02065e573ce42d9d83099b524566878ba61bdb (patch) | |
tree | 9f21c98fe2d7a44694252f6f2b3bc20a23911b93 /cmd/btrfs-fsck/main.go | |
parent | 5626918663de1d3f606850e25a5b39f940ceb7a2 (diff) |
proper multi-dev
Diffstat (limited to 'cmd/btrfs-fsck/main.go')
-rw-r--r-- | cmd/btrfs-fsck/main.go | 142 |
1 files changed, 72 insertions, 70 deletions
diff --git a/cmd/btrfs-fsck/main.go b/cmd/btrfs-fsck/main.go index 7823c8d..97b1571 100644 --- a/cmd/btrfs-fsck/main.go +++ b/cmd/btrfs-fsck/main.go @@ -70,86 +70,88 @@ func Main(imgfilename string) (err error) { fmt.Printf("Pass 1: ... walk chunk tree: error: %v\n", err) } - fmt.Printf("Pass 1: ... scanning for nodes\n") - foundNodes := make(map[btrfs.LogicalAddr][]btrfs.PhysicalAddr) - var lostAndFoundChunks []btrfs.SysChunk - if err := btrfsmisc.ScanForNodes(fs.Devices[0], superblock.Data, func(nodeRef *util.Ref[btrfs.PhysicalAddr, btrfs.Node], err error) { - if err != nil { - fmt.Println(err) - return - } - foundNodes[nodeRef.Data.Head.Addr] = append(foundNodes[nodeRef.Data.Head.Addr], nodeRef.Addr) - _, alreadyVisited := visitedChunkNodes[nodeRef.Data.Head.Addr] - if nodeRef.Data.Head.Owner == btrfs.CHUNK_TREE_OBJECTID && !alreadyVisited { - for i, item := range nodeRef.Data.BodyLeaf { - if item.Head.Key.ItemType != btrfsitem.CHUNK_ITEM_KEY { - continue - } - chunk, ok := item.Body.(btrfsitem.Chunk) - if !ok { - fmt.Printf("Pass 1: node@%d: item %d: error: type is CHUNK_ITEM_KEY, but struct is %T\n", - nodeRef.Addr, i, item.Body) - continue + for _, dev := range fs.Devices { + fmt.Printf("Pass 1: ... dev[%q] scanning for nodes\n", dev.Name()) + foundNodes := make(map[btrfs.LogicalAddr][]btrfs.PhysicalAddr) + var lostAndFoundChunks []btrfs.SysChunk + if err := btrfsmisc.ScanForNodes(dev, superblock.Data, func(nodeRef *util.Ref[btrfs.PhysicalAddr, btrfs.Node], err error) { + if err != nil { + fmt.Printf("Pass 1: ... dev[%q] error: %v\n", dev.Name(), err) + return + } + foundNodes[nodeRef.Data.Head.Addr] = append(foundNodes[nodeRef.Data.Head.Addr], nodeRef.Addr) + _, alreadyVisited := visitedChunkNodes[nodeRef.Data.Head.Addr] + if nodeRef.Data.Head.Owner == btrfs.CHUNK_TREE_OBJECTID && !alreadyVisited { + for i, item := range nodeRef.Data.BodyLeaf { + if item.Head.Key.ItemType != btrfsitem.CHUNK_ITEM_KEY { + continue + } + chunk, ok := item.Body.(btrfsitem.Chunk) + if !ok { + fmt.Printf("Pass 1: ... dev[%q] node@%d: item %d: error: type is CHUNK_ITEM_KEY, but struct is %T\n", + dev.Name(), nodeRef.Addr, i, item.Body) + continue + } + fmt.Printf("Pass 1: ... dev[%q] node@%d: item %d: found chunk\n", + dev.Name(), nodeRef.Addr, i) + lostAndFoundChunks = append(lostAndFoundChunks, btrfs.SysChunk{ + Key: item.Head.Key, + Chunk: chunk, + }) } - fmt.Printf("Pass 1: node@%d: item %d: found chunk\n", - nodeRef.Addr, i) - lostAndFoundChunks = append(lostAndFoundChunks, btrfs.SysChunk{ - Key: item.Head.Key, - Chunk: chunk, - }) } + }); err != nil { + return err } - }); err != nil { - return err - } - fmt.Printf("Pass 1: ... re-inserting lost+found chunks\n") - if len(lostAndFoundChunks) > 0 { - panic("TODO") - } + fmt.Printf("Pass 1: ... dev[%q] re-inserting lost+found chunks\n", dev.Name()) + if len(lostAndFoundChunks) > 0 { + panic("TODO") + } - fmt.Printf("Pass 1: ... re-constructing stripes for lost+found nodes\n") - lostAndFoundNodes := make(map[btrfs.PhysicalAddr]btrfs.LogicalAddr) - for laddr, readPaddrs := range foundNodes { - resolvedPaddrs, _ := fs.Resolve(laddr) - for _, readPaddr := range readPaddrs { - if _, ok := resolvedPaddrs[btrfs.QualifiedPhysicalAddr{ - Dev: superblock.Data.DevItem.DevUUID, - Addr: readPaddr, - }]; !ok { - lostAndFoundNodes[readPaddr] = laddr + fmt.Printf("Pass 1: ... dev[%q] re-constructing stripes for lost+found nodes\n", dev.Name()) + lostAndFoundNodes := make(map[btrfs.PhysicalAddr]btrfs.LogicalAddr) + for laddr, readPaddrs := range foundNodes { + resolvedPaddrs, _ := fs.Resolve(laddr) + for _, readPaddr := range readPaddrs { + if _, ok := resolvedPaddrs[btrfs.QualifiedPhysicalAddr{ + Dev: superblock.Data.DevItem.DevUUID, + Addr: readPaddr, + }]; !ok { + lostAndFoundNodes[readPaddr] = laddr + } } } - } - sortedPaddrs := make([]btrfs.PhysicalAddr, 0, len(lostAndFoundNodes)) - for paddr := range lostAndFoundNodes { - sortedPaddrs = append(sortedPaddrs, paddr) - } - sort.Slice(sortedPaddrs, func(i, j int) bool { - return sortedPaddrs[i] < sortedPaddrs[j] - }) - type stripe struct { - PAddr btrfs.PhysicalAddr - LAddr btrfs.LogicalAddr - Size uint64 - } - var stripes []stripe - for _, paddr := range sortedPaddrs { - var lastStripe *stripe - if len(stripes) > 0 { - lastStripe = &stripes[len(stripes)-1] + sortedPaddrs := make([]btrfs.PhysicalAddr, 0, len(lostAndFoundNodes)) + for paddr := range lostAndFoundNodes { + sortedPaddrs = append(sortedPaddrs, paddr) } - if lastStripe != nil && (lastStripe.PAddr+btrfs.PhysicalAddr(lastStripe.Size)) == paddr { - lastStripe.Size += uint64(superblock.Data.NodeSize) - } else { - stripes = append(stripes, stripe{ - PAddr: paddr, - LAddr: lostAndFoundNodes[paddr], - Size: uint64(superblock.Data.NodeSize), - }) + sort.Slice(sortedPaddrs, func(i, j int) bool { + return sortedPaddrs[i] < sortedPaddrs[j] + }) + type stripe struct { + PAddr btrfs.PhysicalAddr + LAddr btrfs.LogicalAddr + Size uint64 + } + var stripes []stripe + for _, paddr := range sortedPaddrs { + var lastStripe *stripe + if len(stripes) > 0 { + lastStripe = &stripes[len(stripes)-1] + } + if lastStripe != nil && (lastStripe.PAddr+btrfs.PhysicalAddr(lastStripe.Size)) == paddr { + lastStripe.Size += uint64(superblock.Data.NodeSize) + } else { + stripes = append(stripes, stripe{ + PAddr: paddr, + LAddr: lostAndFoundNodes[paddr], + Size: uint64(superblock.Data.NodeSize), + }) + } } + fmt.Printf("Pass 1: ... dev[%q] reconstructed stripes: %#v\n", dev.Name(), stripes) } - fmt.Printf("Pass 1: ... reconstructed stripes: %#v\n", stripes) fmt.Printf("\nPass 2: ?????????????????????????\n") //////////////////////////////////////// /* |