On 06/27/2012 04:51 PM, Michal Hocko wrote:

quoted

quoted

Just disallow clearing .use_hierarchy if it was mounted with the
option? 

Dunno, mount option just doesn't feel right. We do not offer other
attributes to be set by them so it would be just confusing. Besides that
it would require an integration into existing tools like cgconfig which
is yet another pain just because of something that we never promissed to
keep a certain way. There are many people who don't work with mount&fs
cgroups directly but rather use libcgroup for that...

myself included.