Re: [PATCH v7 10/10] memcg: enable accounting for ldt_struct objects

[Shakeel Butt]

On Mon, Jul 26, 2021 at 10:34 PM Vasily Averin <vvs@xxxxxxxxxxxxx> wrote:
>
> Each task can request own LDT and force the kernel to allocate up to
> 64Kb memory per-mm.
>
> There are legitimate workloads with hundreds of processes and there
> can be hundreds of workloads running on large machines.
> The unaccounted memory can cause isolation issues between the workloads
> particularly on highly utilized machines.
>
> It makes sense to account for this objects to restrict the host's memory
> consumption from inside the memcg-limited container.
>
> Signed-off-by: Vasily Averin <vvs@xxxxxxxxxxxxx>
> Acked-by: Borislav Petkov <bp@xxxxxxx>

Reviewed-by: Shakeel Butt <shakeelb@xxxxxxxxxx>