Re: [PATCH v3 4/5] x86, mem-hotplug: Support initialize page tablesfrom low to high.

From: Tejun Heo
Date: Mon Sep 23 2013 - 11:53:43 EST


Hey,

On Fri, Sep 13, 2013 at 05:30:54PM +0800, Tang Chen wrote:
> init_mem_mapping() is called before SRAT is parsed. And memblock will allocate
> memory for page tables. To prevent page tables being allocated within hotpluggable
> memory, we will allocate page tables from the end of kernel image to the higher
> memory.

The same comment about patch split as before. Please make splitting
out memory_map_from_high() a separate patch. Also, please choose one
pair to describe the direction. The series is currently using four
variants - top_down/bottom_up, high_to_low/low_to_high,
from_high/from_low. rev/[none]. Please choose one and stick with it.

Thanks.

--
tejun
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