Re: [patch] Fix large MCA bootmem allocation

Hidetoshi Seto
2008-02-06T02:23:57Z

Robin Holt wrote:
> On Wed, Feb 06, 2008 at 09:30:17AM +0900, Hidetoshi Seto wrote:
>> Russ Anderson wrote:
>>> The MCA code allocates bootmem memory for NR_CPUS, regardless
>>> of how many cpus the system actually has.
>> So... how about using num_possible_cpus() instead?
>
> num_possible_cpus() is not initialized until after this code is run for
> the first time.

I grant you.
Then, I suppose we need a CPU_UP_PREPARE callback to allocate memory
before hot-added CPU enters cpu_init().

Thanks,
H.Seto