On 04/10/2017 01:03 PM, Michal Hocko wrote:
> From: Michal Hocko <mhocko@xxxxxxxx>
>
> c04fc586c1a4 ("mm: show node to memory section relationship with
> symlinks in sysfs") has added means to export memblock<->node
> association into the sysfs. It has also introduced get_nid_for_pfn
> which is a rather confusing counterpart of pfn_to_nid which checks also
> whether the pfn page is already initialized (page_initialized). This
> is done by checking page::lru != NULL which doesn't make any sense at
> all. Nothing in this path really relies on the lru list being used or
> initialized. Just remove it because this will become a problem with
> later patches.
>
> Thanks to Reza Arbab for testing which revealed this to be a problem
> (http://lkml.kernel.org/r/20170403202337.GA12482@xxxxxxxxxxxxxx)
>
> Signed-off-by: Michal Hocko <mhocko@xxxxxxxx>
Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
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