On Sat 11-07-15 10:09:06, Vladimir Davydov wrote:
[...]

Why can't we make root_mem_cgroup statically allocated? AFAICS it's a
common practice - e.g. see blkcg_root, root_task_group.

It's not that easy. mem_cgroup doesn't have a fixed size. It depends
on the number of online nodes. I haven't looked closer to this yet but
cgroup has an early init code path maybe we can hook in there.

I would like to settle with the current issues described in other email
first, though. This is just a cosmetic issue.
-- 
Michal Hocko
SUSE Labs