Re: [PATCH v2 2/2] Documentation/kernel-parameters: Update rcu_normal_wake_from_gp doc

[Joel Fernandes]

On 6/11/2025 1:56 PM, Uladzislau Rezki (Sony) wrote:
> Update the documentation about rcu_normal_wake_from_gp parameter.
> 
> Signed-off-by: Uladzislau Rezki (Sony) <urezki@xxxxxxxxx>

Reviewed-by: Joel Fernandes <joelagnelf@xxxxxxxxxx>

Thanks.


> ---
>  Documentation/admin-guide/kernel-parameters.txt | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> index f1f2c0874da9..f7e4bee2b823 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -5485,7 +5485,8 @@
>  			echo 1 > /sys/module/rcutree/parameters/rcu_normal_wake_from_gp
>  			or pass a boot parameter "rcutree.rcu_normal_wake_from_gp=1"
>  
> -			Default is 0.
> +			Default is 1 if num_possible_cpus() <= 16 and it is not explicitly
> +			disabled by the boot parameter passing 0.
>  
>  	rcuscale.gp_async= [KNL]
>  			Measure performance of asynchronous