linux-kernel - Re: [PATCH v2 01/18] acpi: Print Hot-Pluggable Field in SRAT.

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Date:	Thu, 01 Aug 2013 15:55:08 -0600
From:	Toshi Kani <toshi.kani@...com>
To:	Tang Chen <tangchen@...fujitsu.com>
Cc:	rjw@...k.pl, lenb@...nel.org, tglx@...utronix.de, mingo@...e.hu,
	hpa@...or.com, akpm@...ux-foundation.org, tj@...nel.org,
	trenn@...e.de, yinghai@...nel.org, jiang.liu@...wei.com,
	wency@...fujitsu.com, laijs@...fujitsu.com,
	isimatu.yasuaki@...fujitsu.com, izumi.taku@...fujitsu.com,
	mgorman@...e.de, minchan@...nel.org, mina86@...a86.com,
	gong.chen@...ux.intel.com, vasilis.liaskovitis@...fitbricks.com,
	lwoodman@...hat.com, riel@...hat.com, jweiner@...hat.com,
	prarit@...hat.com, zhangyanfei@...fujitsu.com,
	yanghy@...fujitsu.com, x86@...nel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-acpi@...r.kernel.org
Subject: Re: [PATCH v2 01/18] acpi: Print Hot-Pluggable Field in SRAT.

On Thu, 2013-08-01 at 15:06 +0800, Tang Chen wrote:
> The Hot-Pluggable field in SRAT suggests if the memory could be
> hotplugged while the system is running. Print it as well when
> parsing SRAT will help users to know which memory is hotpluggable.
> 
> Signed-off-by: Tang Chen <tangchen@...fujitsu.com>
> Reviewed-by: Wanpeng Li <liwanp@...ux.vnet.ibm.com>
> Reviewed-by: Zhang Yanfei <zhangyanfei@...fujitsu.com>
> Acked-by: Tejun Heo <tj@...nel.org>

Acked-by: Toshi Kani <toshi.kani@...com>

Thanks,
-Toshi


> ---
>  arch/x86/mm/srat.c |   11 +++++++----
>  1 files changed, 7 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
> index cdd0da9..d44c8a4 100644
> --- a/arch/x86/mm/srat.c
> +++ b/arch/x86/mm/srat.c
> @@ -146,6 +146,7 @@ int __init
>  acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
>  {
>  	u64 start, end;
> +	u32 hotpluggable;
>  	int node, pxm;
>  
>  	if (srat_disabled())
> @@ -154,7 +155,8 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
>  		goto out_err_bad_srat;
>  	if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
>  		goto out_err;
> -	if ((ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) && !save_add_info())
> +	hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE;
> +	if (hotpluggable && !save_add_info())
>  		goto out_err;
>  
>  	start = ma->base_address;
> @@ -174,9 +176,10 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
>  
>  	node_set(node, numa_nodes_parsed);
>  
> -	printk(KERN_INFO "SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]\n",
> -	       node, pxm,
> -	       (unsigned long long) start, (unsigned long long) end - 1);
> +	pr_info("SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]%s\n",
> +		node, pxm,
> +		(unsigned long long) start, (unsigned long long) end - 1,
> +		hotpluggable ? " Hot Pluggable" : "");
>  
>  	return 0;
>  out_err_bad_srat:


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