linux-kernel - Re: [PATCH 02/10] cgroup: introduce cgroup_subsys->legacy

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Message-ID: <20150728152310.GB454@mtj.duckdns.org>
Date:	Tue, 28 Jul 2015 11:23:10 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Zefan Li <lizefan@...wei.com>
Cc:	axboe@...nel.dk, vgoyal@...hat.com, linux-kernel@...r.kernel.org,
	avanzini.arianna@...il.com, kernel-team@...com, hannes@...xchg.org,
	cgroups@...r.kernel.org
Subject: Re: [PATCH 02/10] cgroup: introduce cgroup_subsys->legacy_name

On Tue, Jul 28, 2015 at 02:39:36PM +0800, Zefan Li wrote:
> > @@ -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?

Yeah, good point.  Will update the patch.

Thanks.

-- 
tejun
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