On Wed, Jul 02, 2014 at 07:50:53PM -0400, Tejun Heo wrote: > Currently, cftypes added by cgroup_add_cftypes() are used for both the > unified default hierarchy and legacy ones and subsystems can mark each > file with either CFTYPE_ONLY_ON_DFL or CFTYPE_INSANE if it has to > appear only on one of them. This is quite hairy and error-prone. > Also, we may end up exposing interface files to the default hierarchy > without thinking it through. > > cgroup_subsys will grow two separate cftype addition functions and > apply each only on the hierarchies of the matching type. This will > allow organizing cftypes in a lot clearer way and encourage subsystems > to scrutinize the interface which is being exposed in the new default > hierarchy. > > In preparation, this patch adds cgroup_add_legacy_cftypes() which > currently is a simple wrapper around cgroup_add_cftypes() and replaces > all cgroup_add_cftypes() usages with it. > > While at it, this patch drops a completely spurious return from > __hugetlb_cgroup_file_init(). > > This patch doesn't introduce any functional differences. > > Signed-off-by: Tejun Heo <tj@xxxxxxxxxx> > Cc: Johannes Weiner <hannes@xxxxxxxxxxx> > Cc: Michal Hocko <mhocko@xxxxxxx> > Cc: Neil Horman <nhorman@xxxxxxxxxxxxx> > Cc: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx> Acked-by: Neil Horman <nhorman@xxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
