Re: [PATCH 03/10] x86, mm: get early page table from BRK

[Yinghai Lu]

On Tue, Oct 9, 2012 at 9:01 AM, Konrad Rzeszutek Wilk <konrad@xxxxxxxxxx> wrote:
>> +RESERVE_BRK(early_pgt_alloc, 16384);
>
> How did you come up with 16KB being the right size? What is this
> based on? Can you provide a comment explaining why 16KB is the
> right value on 32-bit and 64-bit machines?

good point, i add one line comment to the revised patch.

+/* need 3 4k for initial PMD_SIZE, 4k for 0-ISA_END_ADDRESS */
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