SLUB: purpose of sysfs events on cache creation/removal

[Michal Hocko]

Hi,
I have just learnt about KOBJ_{ADD,REMOVE} sysfs events triggered on
kmem cache creation/removal when SLUB is configured. This functionality
goes all the way down to initial SLUB merge. I do not see any references
in the Documentation explaining what those events are used for and
whether there are any real users.

Could you shed some more light into this?
-- 
Michal Hocko
SUSE Labs