linux-kernel - Re: [PATCH v6 08/10] mm/memory_hotplug: Don't check for "all holes" in shrink_zone

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Message-ID: <7d36f4cd-3f5b-8fec-2d8b-83e62a34ec89@redhat.com>
Date:   Tue, 4 Feb 2020 10:20:16 +0100
From:   David Hildenbrand <david@...hat.com>
To:     Oscar Salvador <osalvador@...e.de>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linux-arm-kernel@...ts.infradead.org, linux-ia64@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org,
        linux-sh@...r.kernel.org, x86@...nel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Michal Hocko <mhocko@...e.com>,
        Pavel Tatashin <pasha.tatashin@...een.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Wei Yang <richardw.yang@...ux.intel.com>
Subject: Re: [PATCH v6 08/10] mm/memory_hotplug: Don't check for "all holes"
 in shrink_zone_span()

On 04.02.20 10:13, Oscar Salvador wrote:
> On Sun, Oct 06, 2019 at 10:56:44AM +0200, David Hildenbrand wrote:
>> If we have holes, the holes will automatically get detected and removed
>> once we remove the next bigger/smaller section. The extra checks can
>> go.
>>
>> Cc: Andrew Morton <akpm@...ux-foundation.org>
>> Cc: Oscar Salvador <osalvador@...e.de>
>> Cc: Michal Hocko <mhocko@...e.com>
>> Cc: David Hildenbrand <david@...hat.com>
>> Cc: Pavel Tatashin <pasha.tatashin@...een.com>
>> Cc: Dan Williams <dan.j.williams@...el.com>
>> Cc: Wei Yang <richardw.yang@...ux.intel.com>
>> Signed-off-by: David Hildenbrand <david@...hat.com>
> 
> Heh, I have been here before.
> I have to confess that when I wrote my version of this I was not really 100%
> about removing it, because hotplug was a sort of a "catchall" for all sort of weird
> and corner-cases configurations, but thinking more about it, I cannot think of
> any situation that would make this blow up.
> 
> Reviewed-by: Oscar Salvador <osalvador@...e.de>

Thanks for your review Oscar!

-- 
Thanks,

David / dhildenb