graphdb: pass context to IsClosedScid

diff --git a/discovery/ban.go b/discovery/ban.go
index 7100c2f..0425948 100644
--- a/discovery/ban.go
+++ b/discovery/ban.go
@@ -59,7 +59,7 @@ type GraphCloser interface {
 	PutClosedScid(context.Context, lnwire.ShortChannelID) error
 
 	// IsClosedScid checks if a short channel id is closed.
-	IsClosedScid(lnwire.ShortChannelID) (bool, error)
+	IsClosedScid(context.Context, lnwire.ShortChannelID) (bool, error)
 }
 
 // NodeInfoInquirier handles queries relating to specific nodes and channels
@@ -97,10 +97,10 @@ func (s *ScidCloserMan) PutClosedScid(ctx context.Context,
 
 // IsClosedScid checks whether scid is closed so that the gossiper can ignore
 // it.
-func (s *ScidCloserMan) IsClosedScid(scid lnwire.ShortChannelID) (bool,
-	error) {
+func (s *ScidCloserMan) IsClosedScid(ctx context.Context,
+	scid lnwire.ShortChannelID) (bool, error) {
 
-	return s.graph.IsClosedScid(scid)
+	return s.graph.IsClosedScid(ctx, scid)
 }
 
 // IsChannelPeer checks whether we have a channel with the peer.
diff --git a/discovery/gossiper.go b/discovery/gossiper.go
index 11aa4ce..42fe9ac 100644
--- a/discovery/gossiper.go
+++ b/discovery/gossiper.go
@@ -2724,7 +2724,7 @@ func (d *AuthenticatedGossiper) handleChanAnnouncement(ctx context.Context,
 
 	// Check if the channel is already closed in which case we can ignore
 	// it.
-	closed, err := d.cfg.ScidCloser.IsClosedScid(scid)
+	closed, err := d.cfg.ScidCloser.IsClosedScid(ctx, scid)
 	if err != nil {
 		log.Errorf("failed to check if scid %v is closed: %v", scid,
 			err)
diff --git a/discovery/gossiper_test.go b/discovery/gossiper_test.go
index 7440919..0ee33ec 100644
--- a/discovery/gossiper_test.go
+++ b/discovery/gossiper_test.go
@@ -4793,7 +4793,7 @@ func TestChanAnnBanningNonChanPeer(t *testing.T) {
 
 	// Check that the announcement's scid is marked as closed.
 	isClosed, err := tCtx.gossiper.cfg.ScidCloser.IsClosedScid(
-		ca.ShortChannelID,
+		ctx, ca.ShortChannelID,
 	)
 	require.Nil(t, err)
 	require.True(t, isClosed)
diff --git a/discovery/mock_test.go b/discovery/mock_test.go
index 87464c7..050c570 100644
--- a/discovery/mock_test.go
+++ b/discovery/mock_test.go
@@ -187,8 +187,8 @@ func (m *mockScidCloser) PutClosedScid(_ context.Context,
 	return nil
 }
 
-func (m *mockScidCloser) IsClosedScid(scid lnwire.ShortChannelID) (bool,
-	error) {
+func (m *mockScidCloser) IsClosedScid(_ context.Context,
+	scid lnwire.ShortChannelID) (bool, error) {
 
 	m.Lock()
 	defer m.Unlock()
diff --git a/graph/db/graph.go b/graph/db/graph.go
index de10bac..eaf3526 100644
--- a/graph/db/graph.go
+++ b/graph/db/graph.go
@@ -779,8 +779,10 @@ func (c *ChannelGraph) PutClosedScid(ctx context.Context,
 }
 
 // IsClosedScid checks whether a channel identified by the scid is closed.
-func (c *ChannelGraph) IsClosedScid(scid lnwire.ShortChannelID) (bool, error) {
-	return c.db.IsClosedScid(scid)
+func (c *ChannelGraph) IsClosedScid(ctx context.Context,
+	scid lnwire.ShortChannelID) (bool, error) {
+
+	return c.db.IsClosedScid(ctx, scid)
 }
 
 // SetSourceNode sets the source node within the graph database.
diff --git a/graph/db/graph_test.go b/graph/db/graph_test.go
index 5dd84c4..ebe958b 100644
--- a/graph/db/graph_test.go
+++ b/graph/db/graph_test.go
@@ -5086,7 +5086,7 @@ func TestClosedScid(t *testing.T) {
 	scid := lnwire.ShortChannelID{}
 
 	// The scid should not exist in the closedScidBucket.
-	exists, err := graph.IsClosedScid(scid)
+	exists, err := graph.IsClosedScid(t.Context(), scid)
 	require.Nil(t, err)
 	require.False(t, exists)
 
@@ -5095,7 +5095,7 @@ func TestClosedScid(t *testing.T) {
 	err = graph.PutClosedScid(t.Context(), scid)
 	require.Nil(t, err)
 
-	exists, err = graph.IsClosedScid(scid)
+	exists, err = graph.IsClosedScid(t.Context(), scid)
 	require.Nil(t, err)
 	require.True(t, exists)
 }
diff --git a/graph/db/interfaces.go b/graph/db/interfaces.go
index 15b9b5f..06c74c9 100644
--- a/graph/db/interfaces.go
+++ b/graph/db/interfaces.go
@@ -353,7 +353,8 @@ type Store interface { //nolint:interfacebloat
 	// IsClosedScid checks whether a channel identified by the passed in
 	// scid is closed. This helps avoid having to perform expensive
 	// validation checks.
-	IsClosedScid(scid lnwire.ShortChannelID) (bool, error)
+	IsClosedScid(ctx context.Context,
+		scid lnwire.ShortChannelID) (bool, error)
 
 	// UpdateEdgePolicy updates the edge routing policy for a single
 	// directed edge within the database for the referenced channel. The
diff --git a/graph/db/kv_store.go b/graph/db/kv_store.go
index 96ea2f2..a353257 100644
--- a/graph/db/kv_store.go
+++ b/graph/db/kv_store.go
@@ -4456,7 +4456,9 @@ func (c *KVStore) PutClosedScid(_ context.Context,
 // IsClosedScid checks whether a channel identified by the passed in scid is
 // closed. This helps avoid having to perform expensive validation checks.
 // TODO: Add an LRU cache to cut down on disc reads.
-func (c *KVStore) IsClosedScid(scid lnwire.ShortChannelID) (bool, error) {
+func (c *KVStore) IsClosedScid(_ context.Context,
+	scid lnwire.ShortChannelID) (bool, error) {
+
 	var isClosed bool
 	err := kvdb.View(c.db, func(tx kvdb.RTx) error {
 		closedScids := tx.ReadBucket(closedScidBucket)
diff --git a/graph/db/sql_store.go b/graph/db/sql_store.go
index a146a83..b310897 100644
--- a/graph/db/sql_store.go
+++ b/graph/db/sql_store.go
@@ -3287,9 +3287,10 @@ func (s *SQLStore) PutClosedScid(ctx context.Context,
 // closed. This helps avoid having to perform expensive validation checks.
 //
 // NOTE: part of the Store interface.
-func (s *SQLStore) IsClosedScid(scid lnwire.ShortChannelID) (bool, error) {
+func (s *SQLStore) IsClosedScid(ctx context.Context,
+	scid lnwire.ShortChannelID) (bool, error) {
+
 	var (
-		ctx      = context.TODO()
 		isClosed bool
 		chanIDB  = channelIDToBytes(scid.ToUint64())
 	)