Re: [PATCH v1 4/5] mm/memory_hotplug: convert memhp_auto_online to store an online_type

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To: David Hildenbrand <david@xxxxxxxxxx>
Subject: Re: [PATCH v1 4/5] mm/memory_hotplug: convert memhp_auto_online to store an online_type
From: Michal Hocko <mhocko@xxxxxxxxxx>
Date: Mon, 16 Mar 2020 16:46:34 +0100
Cc: linux-kernel@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-hyperv@xxxxxxxxxxxxxxx, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Oscar Salvador <osalvador@xxxxxxx>, "Rafael J. Wysocki" <rafael@xxxxxxxxxx>, Baoquan He <bhe@xxxxxxxxxx>, Wei Yang <richard.weiyang@xxxxxxxxx>, Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>, Paul Mackerras <paulus@xxxxxxxxx>, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, "K. Y. Srinivasan" <kys@xxxxxxxxxxxxx>, Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>, Stephen Hemminger <sthemmin@xxxxxxxxxxxxx>, Wei Liu <wei.liu@xxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>
In-reply-to: <f6088e93-9cb6-08ee-ac89-8cab289dc460@redhat.com>
References: <20200311123026.16071-1-david@redhat.com> <20200311123026.16071-5-david@redhat.com> <20200316152459.GV11482@dhcp22.suse.cz> <f6088e93-9cb6-08ee-ac89-8cab289dc460@redhat.com>

On Mon 16-03-20 16:34:06, David Hildenbrand wrote:
[...]
> Best I can do here is to also always online all memory.

Yes that sounds like a cleaner solution than having a condition that
doesn't make much sense at first glance.

-- 
Michal Hocko
SUSE Labs

References:
- [PATCH v1 0/5] mm/memory_hotplug: allow to specify a default online_type
  - From: David Hildenbrand
- [PATCH v1 4/5] mm/memory_hotplug: convert memhp_auto_online to store an online_type
  - From: David Hildenbrand
- Re: [PATCH v1 4/5] mm/memory_hotplug: convert memhp_auto_online to store an online_type
  - From: Michal Hocko
- Re: [PATCH v1 4/5] mm/memory_hotplug: convert memhp_auto_online to store an online_type
  - From: David Hildenbrand

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