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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Thu, 26 Sep 2019 11:14:25 +0200
From:   David Hildenbrand <david@...hat.com>
To:     "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>,
        linux-kernel@...r.kernel.org
Cc:     linux-mm@...ck.org, 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()

On 26.09.19 11:10, Aneesh Kumar K.V wrote:
> 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?

I thought about that but moved it to #4, because it easily gets lost in
the already-big-enough-patch and is a NOP for ZONE_DEVICE before this
change.

Thanks!

-- 

Thanks,

David / dhildenb