On Tue, Mar 9, 2021 at 2:09 AM Muchun Song <[email protected]> wrote: > > We know that the unit of slab object charging is bytes, the unit of > kmem page charging is PAGE_SIZE. If we want to reuse obj_cgroup APIs > to charge the kmem pages, we should pass PAGE_SIZE (as third parameter) > to obj_cgroup_charge(). Because the size is already PAGE_SIZE, we can > skip touch the objcg stock. And obj_cgroup_{un}charge_pages() are > introduced to charge in units of page level. > > In the later patch, we also can reuse those two helpers to charge or > uncharge a number of kernel pages to a object cgroup. This is just > a code movement without any functional changes. > > Signed-off-by: Muchun Song <[email protected]> > Acked-by: Roman Gushchin <[email protected]>
Reviewed-by: Shakeel Butt <[email protected]>
