Re: [PATCH] mm: move page_ext_init after all struct pages are initialized

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On Thu, 19 May 2016 14:29:05 -0700 Yang Shi <yang.shi@xxxxxxxxxx> wrote:

> When DEFERRED_STRUCT_PAGE_INIT is enabled, just a subset of memmap at boot
> are initialized, then the rest are initialized in parallel by starting one-off
> "pgdatinitX" kernel thread for each node X.
> 
> If page_ext_init is called before it, some pages will not have valid extension,
> so move page_ext_init() after it.
> 

<stdreply>When fixing a bug, please fully describe the end-user impact
of that bug</>

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