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cgroup: convert all non-memcg controllers to the new cftype interface

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Convert debug, freezer, cpuset, cpu_cgroup, cpuacct, net_prio, blkio,
net_cls and device controllers to use the new cftype based interface.
Termination entry is added to cftype arrays and populate callbacks are
replaced with cgroup_subsys->base_cftypes initializations.

This is functionally identical transformation.  There shouldn't be any
visible behavior change.

memcg is rather special and will be converted separately.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Paul Menage <paul@paulmenage.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Vivek Goyal <vgoyal@redhat.com>
This commit is contained in:
Tejun Heo 2012-04-01 12:09:55 -07:00
parent 676f7c8f84
commit 4baf6e3325
8 changed files with 29 additions and 76 deletions
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11
kernel/cgroup_freezer.c
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@ -358,24 +358,19 @@ static int freezer_write(struct cgroup *cgroup,
static struct cftype files[] = {
{
.name = "state",
.flags = CFTYPE_NOT_ON_ROOT,
.read_seq_string = freezer_read,
.write_string = freezer_write,
},
{ } /* terminate */
};
static int freezer_populate(struct cgroup_subsys *ss, struct cgroup *cgroup)
{
if (!cgroup->parent)
return 0;
return cgroup_add_files(cgroup, ss, files, ARRAY_SIZE(files));
}
struct cgroup_subsys freezer_subsys = {
.name = "freezer",
.create = freezer_create,
.destroy = freezer_destroy,
.populate = freezer_populate,
.subsys_id = freezer_subsys_id,
.can_attach = freezer_can_attach,
.fork = freezer_fork,
.base_cftypes = files,
};