On Fri, Sep 11, 2020 at 9:43 AM Nicolas Rybowski
<[email protected]> wrote:
>
> It has been observed that the kernel sockets created for the subflows
> (except the first one) are not in the same cgroup as their parents.
> That's because the additional subflows are created by kernel workers.
>
> This is a problem with eBPF programs attached to the parent's
> cgroup won't be executed for the children. But also with any other features
> of CGroup linked to a sk.
>
> This patch fixes this behaviour.
>
> As the subflow sockets are created by the kernel, we can't use
> 'mem_cgroup_sk_alloc' because of the current context being the one of the
> kworker. This is why we have to do low level memcg manipulation, if
> required.
>
> Suggested-by: Matthieu Baerts <[email protected]>
> Suggested-by: Paolo Abeni <[email protected]>
> Acked-by: Matthieu Baerts <[email protected]>
> Reviewed-by: Mat Martineau <[email protected]>
> Signed-off-by: Nicolas Rybowski <[email protected]>

Acked-by: Song Liu <[email protected]>

[...]

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