Re: [PART2 Patch] node: cleanup node_state_attr

From: Wen Congyang
Date: Thu Nov 01 2012 - 01:46:06 EST


At 11/01/2012 02:29 AM, David Rientjes Wrote:
> On Wed, 31 Oct 2012, Wen Congyang wrote:
>
>> diff --git a/drivers/base/node.c b/drivers/base/node.c
>> index af1a177..5d7731e 100644
>> --- a/drivers/base/node.c
>> +++ b/drivers/base/node.c
>> @@ -614,23 +614,23 @@ static ssize_t show_node_state(struct device *dev,
>> { __ATTR(name, 0444, show_node_state, NULL), state }
>>
>> static struct node_attr node_state_attr[] = {
>> - _NODE_ATTR(possible, N_POSSIBLE),
>> - _NODE_ATTR(online, N_ONLINE),
>> - _NODE_ATTR(has_normal_memory, N_NORMAL_MEMORY),
>> - _NODE_ATTR(has_cpu, N_CPU),
>> + [N_POSSIBLE] = _NODE_ATTR(possible, N_POSSIBLE),
>> + [N_ONLINE] = _NODE_ATTR(online, N_ONLINE),
>> + [N_NORMAL_MEMORY] = _NODE_ATTR(has_normal_memory, N_NORMAL_MEMORY),
>> #ifdef CONFIG_HIGHMEM
>> - _NODE_ATTR(has_high_memory, N_HIGH_MEMORY),
>> + [N_HIGH_MEMORY] = _NODE_ATTR(has_high_memory, N_HIGH_MEMORY),
>> #endif
>> + [N_CPU] = _NODE_ATTR(has_cpu, N_CPU),
>> };
>>
>
> Why change the index for N_CPU?

N_CPU > N_HIGH_MEMORY

We use this array to create attr file in sysfs. So changing the index for N_CPU
doesn't cause any other problem.

Thanks
Wen Congyang

>
>> static struct attribute *node_state_attrs[] = {
>> - &node_state_attr[0].attr.attr,
>> - &node_state_attr[1].attr.attr,
>> - &node_state_attr[2].attr.attr,
>> - &node_state_attr[3].attr.attr,
>> + &node_state_attr[N_POSSIBLE].attr.attr,
>> + &node_state_attr[N_ONLINE].attr.attr,
>> + &node_state_attr[N_NORMAL_MEMORY].attr.attr,
>> #ifdef CONFIG_HIGHMEM
>> - &node_state_attr[4].attr.attr,
>> + &node_state_attr[N_HIGH_MEMORY].attr.attr,
>> #endif
>> + &node_state_attr[N_CPU].attr.attr,
>> NULL
>> };
>>
>

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