netdev - Re: [net-next v4 01/11] page_pool: kconfig: Add flag for page pool stats

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Message-ID: <YfzY780CPu6z09Ki@hades>
Date:   Fri, 4 Feb 2022 09:42:39 +0200
From:   Ilias Apalodimas <ilias.apalodimas@...aro.org>
To:     Joe Damato <jdamato@...tly.com>
Cc:     netdev@...r.kernel.org, kuba@...nel.org, davem@...emloft.net,
        hawk@...nel.org, saeed@...nel.org, ttoukan.linux@...il.com,
        brouer@...hat.com
Subject: Re: [net-next v4 01/11] page_pool: kconfig: Add flag for page pool
 stats

On Thu, Feb 03, 2022 at 04:09:23PM -0800, Joe Damato wrote:
> Control enabling / disabling page_pool_stats with a kernel config option.
> Option is defaulted to N.
> 
> Signed-off-by: Joe Damato <jdamato@...tly.com>
> ---
>  net/Kconfig | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/net/Kconfig b/net/Kconfig
> index 8a1f9d0..604b3eb 100644
> --- a/net/Kconfig
> +++ b/net/Kconfig
> @@ -434,6 +434,18 @@ config NET_DEVLINK
>  config PAGE_POOL
>  	bool
>  
> +config PAGE_POOL_STATS
> +	default n
> +	bool "Page pool stats"
> +	depends on PAGE_POOL
> +	help
> +	  Enable page pool statistics to track allocations. Stats are exported
> +	  to the file /proc/net/page_pool_stat. Users can examine these

There's no proc anymore

> +	  stats to better understand how their drivers and the kernel's
> +	  page allocator, and the page pool interact with each other.
> +
> +	  If unsure, say N.
> +
>  config FAILOVER
>  	tristate "Generic failover module"
>  	help
> -- 
> 2.7.4
> 

Regards
/Ilias