Re: [PATCH 02/10] cgroup: introduce cgroup_subsys->legacy_name

[Zefan Li]

> @@ -1448,7 +1451,8 @@ static int parse_cgroupfs_options(char *data, struct cgroup_sb_opts *opts)
>  		}
>  
>  		for_each_subsys(ss, i) {
> -			if (strcmp(token, ss->name))
> +			if (strcmp(token, ss->name) &&
> +			    strcmp(token, ss->legacy_name))
>  				continue;

As mounting with specified subsystems is only allowed in legacy hierarchy,
I think we should allow using leagcy name only?

>  			if (ss->disabled)
>  				continue;

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