diff mbox series

[v3,6/9] sched/core: Merge cpumask_andnot()+for_each_cpu() into for_each_cpu_andnot()

Message ID 20220825181210.284283-7-vschneid@redhat.com (mailing list archive)
State Superseded
Headers show
Series sched, net: NUMA-aware CPU spreading interface | expand

Commit Message

Valentin Schneider Aug. 25, 2022, 6:12 p.m. UTC
This removes the second use of the sched_core_mask temporary mask.

Signed-off-by: Valentin Schneider <vschneid@redhat.com>
---
 kernel/sched/core.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

Comments

Yury Norov Aug. 25, 2022, 9:16 p.m. UTC | #1
On Thu, Aug 25, 2022 at 07:12:07PM +0100, Valentin Schneider wrote:
> This removes the second use of the sched_core_mask temporary mask.
> 
> Signed-off-by: Valentin Schneider <vschneid@redhat.com>

Suggested-by: Yury Norov <yury.norov@gmail.com>

> ---
>  kernel/sched/core.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> index ee28253c9ac0..b4c3112b0095 100644
> --- a/kernel/sched/core.c
> +++ b/kernel/sched/core.c
> @@ -360,10 +360,7 @@ static void __sched_core_flip(bool enabled)
>  	/*
>  	 * Toggle the offline CPUs.
>  	 */
> -	cpumask_copy(&sched_core_mask, cpu_possible_mask);
> -	cpumask_andnot(&sched_core_mask, &sched_core_mask, cpu_online_mask);
> -
> -	for_each_cpu(cpu, &sched_core_mask)
> +	for_each_cpu_andnot(cpu, cpu_possible_mask, cpu_online_mask)
>  		cpu_rq(cpu)->core_enabled = enabled;
>  
>  	cpus_read_unlock();
> -- 
> 2.31.1
Valentin Schneider Aug. 25, 2022, 11:20 p.m. UTC | #2
On 25/08/22 14:16, Yury Norov wrote:
> On Thu, Aug 25, 2022 at 07:12:07PM +0100, Valentin Schneider wrote:
>> This removes the second use of the sched_core_mask temporary mask.
>>
>> Signed-off-by: Valentin Schneider <vschneid@redhat.com>
>
> Suggested-by: Yury Norov <yury.norov@gmail.com>
>

Indeed, forgot that one, sorry!
diff mbox series

Patch

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index ee28253c9ac0..b4c3112b0095 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -360,10 +360,7 @@  static void __sched_core_flip(bool enabled)
 	/*
 	 * Toggle the offline CPUs.
 	 */
-	cpumask_copy(&sched_core_mask, cpu_possible_mask);
-	cpumask_andnot(&sched_core_mask, &sched_core_mask, cpu_online_mask);
-
-	for_each_cpu(cpu, &sched_core_mask)
+	for_each_cpu_andnot(cpu, cpu_possible_mask, cpu_online_mask)
 		cpu_rq(cpu)->core_enabled = enabled;
 
 	cpus_read_unlock();