linux-kernel - Re: [PATCH v4 4/8] mm/memory_hotplug: Poison memmap in remove_pfn_range_from

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Message-ID: <87zhiro21t.fsf@linux.ibm.com>
Date:   Thu, 26 Sep 2019 14:40:54 +0530
From:   "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>
To:     David Hildenbrand <david@...hat.com>, linux-kernel@...r.kernel.org
Cc:     linux-mm@...ck.org, David Hildenbrand <david@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Oscar Salvador <osalvador@...e.de>,
        Michal Hocko <mhocko@...e.com>,
        Pavel Tatashin <pasha.tatashin@...een.com>,
        Dan Williams <dan.j.williams@...el.com>
Subject: Re: [PATCH v4 4/8] mm/memory_hotplug: Poison memmap in remove_pfn_range_from_zone()

David Hildenbrand <david@...hat.com> writes:
 @@ -134,11 +134,12 @@ void memunmap_pages(struct dev_pagemap *pgmap)
  
>  	mem_hotplug_begin();
> +	remove_pfn_range_from_zone(page_zone(pfn_to_page(pfn)), pfn,
> +				   PHYS_PFN(resource_size(res)));

That should be part of PATCH 3?

>  	if (pgmap->type == MEMORY_DEVICE_PRIVATE) {
> -		pfn = PHYS_PFN(res->start);
>  		__remove_pages(pfn, PHYS_PFN(resource_size(res)), NULL);
>  	} else {
>  		arch_remove_memory(nid, res->start, resource_size(res),
> -- 
> 2.21.0

-aneesh