[PATCH 06/34] fs: add id translation helpers

[Christoph Hellwig]

> +static inline kuid_t kuid_into_mnt(struct user_namespace *to, kuid_t kuid)
> +{
> +#ifdef CONFIG_IDMAP_MOUNTS
> +	return make_kuid(to, __kuid_val(kuid));
> +#else
> +	return kuid;
> +#endif
> +}
> +
> +static inline kgid_t kgid_into_mnt(struct user_namespace *to, kgid_t kgid)
> +{
> +#ifdef CONFIG_IDMAP_MOUNTS
> +	return make_kgid(to, __kgid_val(kgid));
> +#else
> +	return kgid;
> +#endif

If you want to keep the config option please at least have on
#ifdef/#else/#endif instead of this mess.