Re: [PATCH] mm: memcontrol: do not miss MEMCG_MAX events for enforced allocations

[Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx>]

On Tue, Jul 5, 2022 at 9:24 PM Roman Gushchin <roman.gushchin@xxxxxxxxx> wrote:
>
> Anyway, here is the patch for reparenting bpf maps:
> https://github.com/rgushchin/linux/commit/f57df8bb35770507a4624fe52216b6c14f39c50c
>
> I gonna post it to bpf@ after some testing.

Please do. It looks good.
It needs #ifdef CONFIG_MEMCG_KMEM
because get_obj_cgroup_from_current() is undefined otherwise.
Ideally just adding a static inline to a .h ?

and
if (map->objcg)
   memcg = get_mem_cgroup_from_objcg(map->objcg);

or !NULL check inside get_mem_cgroup_from_objcg()
which would be better.