lnd+kvdb: pass LND abort context to etcd

lncfg/db.go

@@ -1,6 +1,7 @@
 package lncfg
 
 import (
+	"context"
 	"fmt"
 
 	"github.com/lightningnetwork/lnd/channeldb/kvdb"
@@ -50,12 +51,12 @@ func (db *DB) Validate() error {
 }
 
 // GetBackend returns a kvdb.Backend as set in the DB config.
-func (db *DB) GetBackend(dbPath string, networkName string) (
-	kvdb.Backend, error) {
+func (db *DB) GetBackend(ctx context.Context, dbPath string,
+	networkName string) (kvdb.Backend, error) {
 
 	if db.Backend == etcdBackend {
 		// Prefix will separate key/values in the db.
-		return kvdb.GetEtcdBackend(networkName, db.Etcd)
+		return kvdb.GetEtcdBackend(ctx, networkName, db.Etcd)
 	}
 
 	return kvdb.GetBoltBackend(dbPath, dbName, db.Bolt.NoFreeListSync)