[PATCH] properly reserve in bootmem the lmb reserved regions that cross numa nodes
Jon Tollefson
kniht at linux.vnet.ibm.com
Fri Oct 3 07:52:14 EST 2008
Adam Litke wrote:
> This seems like the right approach to me. I have pointed out a few
> stylistic issues below.
>
Thanks. I'll make those changes. I assume by __mminit you meant __meminit
Jon
> On Tue, 2008-09-30 at 09:53 -0500, Jon Tollefson wrote:
> <snip>
>
>> + /* Mark reserved regions */
>> + for (i = 0; i < lmb.reserved.cnt; i++) {
>> + unsigned long physbase = lmb.reserved.region[i].base;
>> + unsigned long size = lmb.reserved.region[i].size;
>> + unsigned long start_pfn = physbase >> PAGE_SHIFT;
>> + unsigned long end_pfn = ((physbase+size-1) >> PAGE_SHIFT);
>>
>
> CodingStyle dictates that this should be:
> unsigned long end_pfn = ((physbase + size - 1) >> PAGE_SHIFT);
>
> <snip>
>
>
>> +/**
>> + * get_node_active_region - Return active region containing start_pfn
>> + * @start_pfn The page to return the region for.
>> + *
>> + * It will return NULL if active region is not found.
>> + */
>> +struct node_active_region *get_node_active_region(
>> + unsigned long start_pfn)
>>
>
> Bad style. I think the convention would be to write it like this:
>
> struct node_active_region *
> get_node_active_region(unsigned long start_pfn)
>
>
>> +{
>> + int i;
>> + for (i = 0; i < nr_nodemap_entries; i++) {
>> + unsigned long node_start_pfn = early_node_map[i].start_pfn;
>> + unsigned long node_end_pfn = early_node_map[i].end_pfn;
>> +
>> + if (node_start_pfn <= start_pfn && node_end_pfn > start_pfn)
>> + return &early_node_map[i];
>> + }
>> + return NULL;
>> +}
>>
>
> Since this is using the early_node_map[], should we mark the function
> __mminit?
>
>
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