Re: [RFC PATCH 0/2] sched/cpuset: Fix DL BW accounting in case can_attach() fails

[Juri Lelli]

Hi,

On 22/03/23 14:59, Dietmar Eggemann wrote:
> I followed Longman's idea to add a `deadline task transfer count` into
> cpuset and only update the `dl task count` in cpuset_attach().
> 
> Moreover, I switched from per-task DL BW request to a per-cpuset one.
> This way we don't have to free per-task in case xxx_can_attach() fails.
> 
> The DL BW freeing is handled in cpuset_cancel_attach() for the case
> `multiple controllers and one of the non-cpuset can_attach() fails`.
> 
> Only lightly tested on cgroup v1 with exclusive cpusets so far.

This makes sense to me. Thanks for working on it!

Guess I might incorporate these in my (RFC) series and re-post the whole
lot?

Best,
Juri