Re: [PATCH -v2 08/17] sched: Massage set_cpus_allowed()

From: Valentin Schneider
Date: Tue Oct 06 2020 - 07:20:13 EST



On 05/10/20 15:57, Peter Zijlstra wrote:
> Thread a u32 flags word through the *set_cpus_allowed*() callchain.
> This will allow adding behavioural tweaks for future users.
>
> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
> ---
[...]
> @@ -1899,7 +1900,9 @@ extern void update_group_capacity(struct
>
> extern void trigger_load_balance(struct rq *rq);
>
> -extern void set_cpus_allowed_common(struct task_struct *p, const struct cpumask *new_mask);
> +#define SCA_CHECK 0x01
> +

That most likely needs to live outside of the #define CONFIG_SMP, so this
should be hoisted up - you already do that in the next patch, this should
be done here.

> +extern void set_cpus_allowed_common(struct task_struct *p, const struct cpumask *new_mask, u32 flags);
>
> #endif
>