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SubjectRe: [PATCH 14/21] x86, acpi, numa: Reserve hotpluggable memory at early time.
On Fri, Jul 19, 2013 at 03:59:27PM +0800, Tang Chen wrote:
> + /*
> + * In such an early time, we don't have nid. We specify pxm
> + * instead of MAX_NUMNODES to prevent memblock merging regions
> + * on different nodes. And later modify pxm to nid when nid is
> + * mapped so that we can arrange ZONE_MOVABLE on different
> + * nodes.
> + */
> + memblock_reserve_hotpluggable(base_address, length, pxm);

This is rather hacky. Why not just introduce MEMBLOCK_NO_MERGE flag?

--
tejun


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