[v4] VDUSE: Improve performance

[PATCH v4 01/11] lib/group_cpus: Export group_cpus_evenly()

Posted by Xie Yongji 2 years, 5 months ago

Export group_cpus_evenly() so that some modules
can make use of it to group CPUs evenly according
to NUMA and CPU locality.

Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Acked-by: Jason Wang <jasowang@redhat.com>
---
 lib/group_cpus.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/group_cpus.c b/lib/group_cpus.c
index 9c837a35fef7..aa3f6815bb12 100644
--- a/lib/group_cpus.c
+++ b/lib/group_cpus.c
@@ -426,3 +426,4 @@ struct cpumask *group_cpus_evenly(unsigned int numgrps)
 	return masks;
 }
 #endif /* CONFIG_SMP */
+EXPORT_SYMBOL_GPL(group_cpus_evenly);
-- 
2.20.1

Re: [PATCH v4 01/11] lib/group_cpus: Export group_cpus_evenly()

Posted by Michael S. Tsirkin 2 years, 5 months ago

On Thu, Mar 23, 2023 at 01:30:33PM +0800, Xie Yongji wrote:
> Export group_cpus_evenly() so that some modules
> can make use of it to group CPUs evenly according
> to NUMA and CPU locality.
> 
> Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
> Acked-by: Jason Wang <jasowang@redhat.com>


Hi Thomas, do you ack merging this through my tree?
Thanks!

> ---
>  lib/group_cpus.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/lib/group_cpus.c b/lib/group_cpus.c
> index 9c837a35fef7..aa3f6815bb12 100644
> --- a/lib/group_cpus.c
> +++ b/lib/group_cpus.c
> @@ -426,3 +426,4 @@ struct cpumask *group_cpus_evenly(unsigned int numgrps)
>  	return masks;
>  }
>  #endif /* CONFIG_SMP */
> +EXPORT_SYMBOL_GPL(group_cpus_evenly);
> -- 
> 2.20.1