Re: [PATCH v4 3/4] sched/fair: Add sched_smt_active check for fastpaths

[Valentin Schneider]

On 15/05/26 22:54, Shrikanth Hegde wrote:
> For fastpaths such as wakeup and load balance even minimal code additions
> can add up. is_core_idle is accessed during load balance.
>
> Other callsites of is_core_idle make sched_smt_active() check first.
> Make the same check in should_we_balance.
>
> Rest of access to cpu_smt_mask isn't in fastpath.
>
> Note: Remove the stale comment above is_core_idle. Enqueue methods
> of fair aren't close to it anymore.
>
> Suggested-by: K Prateek Nayak <kprateek.nayak@xxxxxxx>
> Signed-off-by: Shrikanth Hegde <sshegde@xxxxxxxxxxxxx>

Reviewed-by: Valentin Schneider <vschneid@xxxxxxxxxx>