Re: Externalize SLIT table

[Andreas Schwab <schwab@suse.de>]

Jack Steiner <steiner@sgi.com> writes:

> @@ -111,6 +111,21 @@ static ssize_t node_read_numastat(struct
>  }
>  static SYSDEV_ATTR(numastat, S_IRUGO, node_read_numastat, NULL);
>  
> +static ssize_t node_read_distance(struct sys_device * dev, char * buf)
> +{
> +	int nid = dev->id;
> +	int len = 0;
> +	int i;
> +
> +	for (i = 0; i < numnodes; i++)
> +		len += sprintf(buf + len, "%s%d", i ? " " : "", node_distance(nid, i));

Can this overflow the space allocated for buf?

> @@ -58,6 +59,31 @@ static inline void register_cpu_control(
>  }
>  #endif /* CONFIG_HOTPLUG_CPU */
>  
> +#ifdef CONFIG_NUMA
> +static ssize_t cpu_read_distance(struct sys_device * dev, char * buf)
> +{
> +	int nid = cpu_to_node(dev->id);
> +	int len = 0;
> +	int i;
> +
> +	for (i = 0; i < num_possible_cpus(); i++)
> +		len += sprintf(buf + len, "%s%d", i ? " " : "", 
> +			node_distance(nid, cpu_to_node(i)));

Or this?

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Maxfeldstraße 5, 90409 Nürnberg, Germany
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