xds/internal/xdsclient/xdsresource: Preallocate VirtualHost slice cor…

…rectly (#7157)
grpc · Apr 23, 2024 · 5a24fc1 · 5a24fc1
1 parent cb9c22d
commit 5a24fc1
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/xds/internal/xdsclient/xdsresource/filter_chain.go b/xds/internal/xdsclient/xdsresource/filter_chain.go
@@ -106,7 +106,7 @@ type UsableRouteConfiguration struct {
 // ConstructUsableRouteConfiguration takes Route Configuration and converts it
 // into matchable route configuration, with instantiated HTTP Filters per route.
 func (fc *FilterChain) ConstructUsableRouteConfiguration(config RouteConfigUpdate) *UsableRouteConfiguration {
-	vhs := make([]VirtualHostWithInterceptors, len(config.VirtualHosts))
+	vhs := make([]VirtualHostWithInterceptors, 0, len(config.VirtualHosts))
 	for _, vh := range config.VirtualHosts {
 		vhwi, err := fc.convertVirtualHost(vh)
 		if err != nil {