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Re: [PATCH] mm: use early_pfn_to_nid in register_page_bootmem_info_node

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On Wed, 25 May 2016 14:00:07 -0700 Yang Shi <yang.shi@linaro.org> wrote:

> register_page_bootmem_info_node() is invoked in mem_init(), so it will be
> called before page_alloc_init_late() if CONFIG_DEFERRED_STRUCT_PAGE_INIT
> is enabled. But, pfn_to_nid() depends on memmap which won't be fully setup
> until page_alloc_init_late() is done, so replace pfn_to_nid() by
> early_pfn_to_nid().

What are the runtime effects of this fix?

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[PATCH] mm: use early_pfn_to_nid in register_page_bootmem_info_node Yang Shi <yang.shi@linaro.org> - 2016-05-25 23:30 +0200
  Re: [PATCH] mm: use early_pfn_to_nid in  register_page_bootmem_info_node Andrew Morton <akpm@linux-foundation.org> - 2016-05-26 00:30 +0200
    Re: [PATCH] mm: use early_pfn_to_nid in  register_page_bootmem_info_node "Shi, Yang" <yang.shi@linaro.org> - 2016-05-26 01:50 +0200
      Re: [PATCH] mm: use early_pfn_to_nid in  register_page_bootmem_info_node Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2016-05-26 02:40 +0200

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