On 11/26/2012 05:15 AM, Tang Chen wrote:
>
> Hi Wu,
>
> That is really a problem. And, before numa memory got initialized,
> memblock subsystem would be used to allocate memory. I didn't find any
> approach that could fully address it when I making the patches. There
> always be risk that memblock allocates memory on ZONE_MOVABLE. I think
> we can only do our best to prevent it from happening.
>
> Your patch is very helpful. And after a shot look at the code, it seems
> that acpi_numa_memory_affinity_init() is an architecture dependent
> function. Could we do this somewhere which is not depending on the
> architecture ?
>
The movable memory should be classified as a non-RAM type in memblock,
that way we will not allocate from it early on.
-hpa
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