core/txpool/blobpool: also migrate limbo

core/txpool/blobpool/blobpool.go

@@ -398,37 +398,11 @@ func (p *BlobPool) Init(gasTip uint64, head *types.Header, reserver txpool.Reser
 	// Create new slotter for pre-Osaka blob configuration.
 	slotter := newSlotter(eip4844.LatestMaxBlobsPerBlock(p.chain.Config()))
 
-	// Check if we need to migrate our blob db to the new slotter.
-	if p.chain.Config().OsakaTime != nil {
-		// Open the store using the version slotter to see if any version has been
-		// written.
-		var version int
-		index := func(_ uint64, _ uint32, blob []byte) {
-			version = max(version, parseSlotterVersion(blob))
-		}
-		store, err := billy.Open(billy.Options{Path: queuedir}, newVersionSlotter(), index)
+	// See if we need to migrate the limbo after fusaka.
+	slotter, err = tryMigrate(p.chain.Config(), slotter, p.config.Datadir)
 	if err != nil {
 		return err
 	}
-		store.Close()
-
-		// If the version found is less than the currently configured store version,
-		// perform a migration then write the updated version of the store.
-		if version < storeVersion {
-			newSlotter := newSlotterEIP7594(eip4844.LatestMaxBlobsPerBlock(p.chain.Config()))
-			if err := billy.Migrate(billy.Options{Path: queuedir, Repair: true}, slotter, newSlotter); err != nil {
-				return err
-			}
-			store, err = billy.Open(billy.Options{Path: queuedir}, newVersionSlotter(), nil)
-			if err != nil {
-				return err
-			}
-			writeSlotterVersion(store, storeVersion)
-			store.Close()
-		}
-		// Set the slotter to the format now that the Osaka is active.
-		slotter = newSlotterEIP7594(eip4844.LatestMaxBlobsPerBlock(p.chain.Config()))
-	}
 
 	// Index all transactions on disk and delete anything unprocessable
 	var fails []uint64
@@ -470,7 +444,7 @@ func (p *BlobPool) Init(gasTip uint64, head *types.Header, reserver txpool.Reser
 
 	// Pool initialized, attach the blob limbo to it to track blobs included
 	// recently but not yet finalized
-	p.limbo, err = newLimbo(limbodir, eip4844.LatestMaxBlobsPerBlock(p.chain.Config()))
+	p.limbo, err = newLimbo(p.chain.Config(), limbodir)
 	if err != nil {
 		p.Close()
 		return err

core/txpool/blobpool/blobpool_test.go

@@ -1175,8 +1175,9 @@ func TestBillyMigration(t *testing.T) {
 	storage := t.TempDir()
 
 	os.MkdirAll(filepath.Join(storage, pendingTransactionStore), 0700)
+	os.MkdirAll(filepath.Join(storage, limboedTransactionStore), 0700)
 	// Create the billy with the old slotter
-	oldSlotter := newSlotter(6)
+	oldSlotter := newSlotterEIP7594(6)
 	store, _ := billy.Open(billy.Options{Path: filepath.Join(storage, pendingTransactionStore)}, oldSlotter, nil)
 
 	// Create transactions from a few accounts.

core/txpool/blobpool/limbo.go

@@ -20,8 +20,10 @@ import (
 	"errors"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/consensus/misc/eip4844"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/params"
 	"github.com/ethereum/go-ethereum/rlp"
 	"github.com/holiman/billy"
 )
@@ -48,11 +50,21 @@ type limbo struct {
 }
 
 // newLimbo opens and indexes a set of limboed blob transactions.
-func newLimbo(datadir string, maxBlobsPerTransaction int) (*limbo, error) {
+func newLimbo(config *params.ChainConfig, datadir string) (*limbo, error) {
 	l := &limbo{
 		index:  make(map[common.Hash]uint64),
 		groups: make(map[uint64]map[uint64]common.Hash),
 	}
+
+	// Create new slotter for pre-Osaka blob configuration.
+	slotter := newSlotter(eip4844.LatestMaxBlobsPerBlock(config))
+
+	// See if we need to migrate the limbo after fusaka.
+	slotter, err := tryMigrate(config, slotter, datadir)
+	if err != nil {
+		return nil, err
+	}
+
 	// Index all limboed blobs on disk and delete anything unprocessable
 	var fails []uint64
 	index := func(id uint64, size uint32, data []byte) {
@@ -60,7 +72,7 @@ func newLimbo(datadir string, maxBlobsPerTransaction int) (*limbo, error) {
 			fails = append(fails, id)
 		}
 	}
-	store, err := billy.Open(billy.Options{Path: datadir, Repair: true}, newSlotter(maxBlobsPerTransaction), index)
+	store, err := billy.Open(billy.Options{Path: datadir, Repair: true}, slotter, index)
 	if err != nil {
 		return nil, err
 	}

core/txpool/blobpool/slotter.go

@@ -16,7 +16,48 @@
 
 package blobpool
 
-import "github.com/holiman/billy"
+import (
+	"github.com/ethereum/go-ethereum/consensus/misc/eip4844"
+	"github.com/ethereum/go-ethereum/params"
+	"github.com/holiman/billy"
+)
+
+// tryMigrate checks if the billy needs to be migrated and migrates if needed.
+// Returns a slotter that can be used for the database.
+func tryMigrate(config *params.ChainConfig, slotter billy.SlotSizeFn, datadir string) (billy.SlotSizeFn, error) {
+	// Check if we need to migrate our blob db to the new slotter.
+	if config.OsakaTime != nil {
+		// Open the store using the version slotter to see if any version has been
+		// written.
+		var version int
+		index := func(_ uint64, _ uint32, blob []byte) {
+			version = max(version, parseSlotterVersion(blob))
+		}
+		store, err := billy.Open(billy.Options{Path: datadir}, newVersionSlotter(), index)
+		if err != nil {
+			return nil, err
+		}
+		store.Close()
+
+		// If the version found is less than the currently configured store version,
+		// perform a migration then write the updated version of the store.
+		if version < storeVersion {
+			newSlotter := newSlotterEIP7594(eip4844.LatestMaxBlobsPerBlock(config))
+			if err := billy.Migrate(billy.Options{Path: datadir, Repair: true}, slotter, newSlotter); err != nil {
+				return nil, err
+			}
+			store, err = billy.Open(billy.Options{Path: datadir}, newVersionSlotter(), nil)
+			if err != nil {
+				return nil, err
+			}
+			writeSlotterVersion(store, storeVersion)
+			store.Close()
+		}
+		// Set the slotter to the format now that the Osaka is active.
+		slotter = newSlotterEIP7594(eip4844.LatestMaxBlobsPerBlock(config))
+	}
+	return slotter, nil
+}
 
 // newSlotter creates a helper method for the Billy datastore that returns the
 // individual shelf sizes used to store transactions in.
@@ -27,7 +68,7 @@ import "github.com/holiman/billy"
 // The slotter also creates a shelf for 0-blob transactions. Whilst those are not
 // allowed in the current protocol, having an empty shelf is not a relevant use
 // of resources, but it makes stress testing with junk transactions simpler.
-func newSlotter(maxBlobsPerTransaction int) func() (uint32, bool) {
+func newSlotter(maxBlobsPerTransaction int) billy.SlotSizeFn {
 	slotsize := uint32(txAvgSize)
 	slotsize -= uint32(blobSize) // underflows, it's ok, will overflow back in the first return
 
@@ -45,7 +86,7 @@ func newSlotter(maxBlobsPerTransaction int) func() (uint32, bool) {
 // This slotter adds a dynamic overhead component to the slotter, which also
 // captures the notion that blob transactions with more blobs are also more likely to
 // to have more calldata.
-func newSlotterEIP7594(maxBlobsPerTransaction int) func() (uint32, bool) {
+func newSlotterEIP7594(maxBlobsPerTransaction int) billy.SlotSizeFn {
 	slotsize := uint32(txAvgSize)
 	slotsize -= uint32(blobSize) + txBlobOverhead // underflows, it's ok, will overflow back in the first return
 
@@ -59,7 +100,7 @@ func newSlotterEIP7594(maxBlobsPerTransaction int) func() (uint32, bool) {
 
 // newVersionSlotter creates a slotter with a single 8 byte shelf to store
 // version metadata in.
-func newVersionSlotter() func() (uint32, bool) {
+func newVersionSlotter() billy.SlotSizeFn {
 	return func() (size uint32, done bool) {
 		return 8, true
 	}