From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Vrabel <david.vrabel@citrix.com>
Subject: Re: Linux'es free_initmem() on Xen
Date: Tue, 2 Feb 2016 13:30:11 +0000
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To: Jan Beulich <JBeulich@suse.com>, David Vrabel <david.vrabel@citrix.com>, Boris Ostrovsky <boris.ostrovsky@oracle.com>, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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On 02/02/16 12:44, Jan Beulich wrote:
> All,
> 
> while looking into some of the DEBUG_WX issues I came across
> aforementioned function and started wondering how pv-ops gets
> away without the unmapping XenoLinux has always been doing
> (in free_init_pages()).

Um.  I'm not sure why you think something needs to be unmapped.  This is
freeing the pages back to the page allocator -- thus the pages still
need to be mapped.

David