linux-kernel - Re: [PATCH 09/10] sched/balancing: Vertically align the comments of 'struct sg_lb_stats' and 'struct sd_lb

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Date: Fri, 8 Mar 2024 13:01:46 +0100
From: Vincent Guittot <vincent.guittot@...aro.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: linux-kernel@...r.kernel.org, Dietmar Eggemann <dietmar.eggemann@....com>, 
	Linus Torvalds <torvalds@...ux-foundation.org>, Peter Zijlstra <peterz@...radead.org>, 
	Shrikanth Hegde <sshegde@...ux.ibm.com>, Valentin Schneider <vschneid@...hat.com>
Subject: Re: [PATCH 09/10] sched/balancing: Vertically align the comments of
 'struct sg_lb_stats' and 'struct sd_lb_stats'

On Fri, 8 Mar 2024 at 11:59, Ingo Molnar <mingo@...nel.org> wrote:
>
> Make them easier to read.
>
> Signed-off-by: Ingo Molnar <mingo@...nel.org>
> Reviewed-by: Valentin Schneider <vschneid@...hat.com>
> Cc: Dietmar Eggemann <dietmar.eggemann@....com>
> Cc: Linus Torvalds <torvalds@...ux-foundation.org>
> Cc: Peter Zijlstra <peterz@...radead.org>
> Cc: Shrikanth Hegde <sshegde@...ux.ibm.com>
> Cc: Vincent Guittot <vincent.guittot@...aro.org>

Reviewed-by: Vincent Guittot <vincent.guittot@...aro.org>

> ---
>  kernel/sched/fair.c | 34 +++++++++++++++++-----------------
>  1 file changed, 17 insertions(+), 17 deletions(-)
>
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index b567c0790f44..40b98e43d794 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -9436,19 +9436,19 @@ static void update_blocked_averages(int cpu)
>   * sg_lb_stats - stats of a sched_group required for load_balancing
>   */
>  struct sg_lb_stats {
> -       unsigned long avg_load; /*Avg load across the CPUs of the group */
> -       unsigned long group_load; /* Total load over the CPUs of the group */
> +       unsigned long avg_load;                 /* Avg load across the CPUs of the group */
> +       unsigned long group_load;               /* Total load over the CPUs of the group */
>         unsigned long group_capacity;
> -       unsigned long group_util; /* Total utilization over the CPUs of the group */
> -       unsigned long group_runnable; /* Total runnable time over the CPUs of the group */
> -       unsigned int sum_nr_running; /* Nr of tasks running in the group */
> -       unsigned int sum_h_nr_running; /* Nr of CFS tasks running in the group */
> +       unsigned long group_util;               /* Total utilization over the CPUs of the group */
> +       unsigned long group_runnable;           /* Total runnable time over the CPUs of the group */
> +       unsigned int sum_nr_running;            /* Nr of tasks running in the group */
> +       unsigned int sum_h_nr_running;          /* Nr of CFS tasks running in the group */
>         unsigned int idle_cpus;
>         unsigned int group_weight;
>         enum group_type group_type;
> -       unsigned int group_asym_packing; /* Tasks should be moved to preferred CPU */
> -       unsigned int group_smt_balance;  /* Task on busy SMT be moved */
> -       unsigned long group_misfit_task_load; /* A CPU has a task too big for its capacity */
> +       unsigned int group_asym_packing;        /* Tasks should be moved to preferred CPU */
> +       unsigned int group_smt_balance;         /* Task on busy SMT be moved */
> +       unsigned long group_misfit_task_load;   /* A CPU has a task too big for its capacity */
>  #ifdef CONFIG_NUMA_BALANCING
>         unsigned int nr_numa_running;
>         unsigned int nr_preferred_running;
> @@ -9460,15 +9460,15 @@ struct sg_lb_stats {
>   *              during load balancing.
>   */
>  struct sd_lb_stats {
> -       struct sched_group *busiest;    /* Busiest group in this sd */
> -       struct sched_group *local;      /* Local group in this sd */
> -       unsigned long total_load;       /* Total load of all groups in sd */
> -       unsigned long total_capacity;   /* Total capacity of all groups in sd */
> -       unsigned long avg_load; /* Average load across all groups in sd */
> -       unsigned int prefer_sibling; /* tasks should go to sibling first */
> +       struct sched_group *busiest;            /* Busiest group in this sd */
> +       struct sched_group *local;              /* Local group in this sd */
> +       unsigned long total_load;               /* Total load of all groups in sd */
> +       unsigned long total_capacity;           /* Total capacity of all groups in sd */
> +       unsigned long avg_load;                 /* Average load across all groups in sd */
> +       unsigned int prefer_sibling;            /* tasks should go to sibling first */
>
> -       struct sg_lb_stats busiest_stat;/* Statistics of the busiest group */
> -       struct sg_lb_stats local_stat;  /* Statistics of the local group */
> +       struct sg_lb_stats busiest_stat;        /* Statistics of the busiest group */
> +       struct sg_lb_stats local_stat;          /* Statistics of the local group */
>  };
>
>  static inline void init_sd_lb_stats(struct sd_lb_stats *sds)
> --
> 2.40.1
>