Perfomance: add preallocation for some slices (#59263)

add preallocation for some slices

pkg/services/accesscontrol/resourcepermissions/service.go

@@ -53,7 +53,7 @@ func New(
 	ac accesscontrol.AccessControl, service accesscontrol.Service, sqlStore db.DB,
 	teamService team.Service, userService user.Service,
 ) (*Service, error) {
-	var permissions []string
+	permissions := make([]string, 0, len(options.PermissionsToActions))
 	actionSet := make(map[string]struct{})
 	for permission, actions := range options.PermissionsToActions {
 		permissions = append(permissions, permission)

pkg/services/accesscontrol/resourcepermissions/store.go

@@ -608,7 +608,7 @@ func (s *store) createPermissions(sess *db.Session, roleID int64, resource, reso
 	if len(actions) == 0 {
 		return nil
 	}
-	var permissions []accesscontrol.Permission
+	permissions := make([]accesscontrol.Permission, 0, len(actions))
 	for action := range actions {
 		p := managedPermission(action, resource, resourceID, resourceAttribute)
 		p.RoleID = roleID