Re: [PATCH 07/10] bootmem: add free_bootmem_late
From: Pekka Enberg
Date: Mon Nov 09 2009 - 15:22:05 EST
On Mon, Nov 9, 2009 at 10:13 PM, Pekka Enberg <penberg@xxxxxxxxxxxxxx> wrote:
>> for (cursor = start; cursor < end; cursor += BITS_PER_LONG) {
>> - unsigned long idx, vec;
>> + unsigned long vec;
>>
>> - idx = cursor - start;
>> - vec = ~map[idx / BITS_PER_LONG];
>> + if (map) {
>> + unsigned long idx = cursor - start;
>> + vec = ~map[idx / BITS_PER_LONG];
>> + } else {
>> + if (end - cursor >= BITS_PER_LONG)
>> + vec = ~0UL;
>
> Why do we need the above?
OK, I figured that out. I'm not sure why you want to play tricks with
"vec" when you could just add a new helper that calls
__free_pages_bootmem() for the full contiguous page range.
Pekka
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