Re: [PATCH v7 04/10] memcg: enable accounting for fasync_cache

From: Shakeel Butt
Date: Tue Jul 27 2021 - 17:51:06 EST


On Mon, Jul 26, 2021 at 10:33 PM Vasily Averin <vvs@xxxxxxxxxxxxx> wrote:
>
> fasync_struct is used by almost all character device drivers to set up
> the fasync queue, and for regular files by the file lease code.
> This structure is quite small but long-living and it can be assigned
> for any open file.
>
> It makes sense to account for its allocations to restrict the host's
> memory consumption from inside the memcg-limited container.
>
> Signed-off-by: Vasily Averin <vvs@xxxxxxxxxxxxx>

Reviewed-by: Shakeel Butt <shakeelb@xxxxxxxxxx>