linux-kernel - Re: [RFC PATCH 1/3] mm, memory_hotplug: try to migrate full section worth of pages

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Message-ID: <1542725492.6817.3.camel@suse.com>
Date:   Tue, 20 Nov 2018 15:51:32 +0100
From:   osalvador <osalvador@...e.com>
To:     Michal Hocko <mhocko@...nel.org>, linux-mm@...ck.org
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Pavel Tatashin <pasha.tatashin@...cle.com>,
        David Hildenbrand <david@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Michal Hocko <mhocko@...e.com>
Subject: Re: [RFC PATCH 1/3] mm, memory_hotplug: try to migrate full section
 worth of pages

On Tue, 2018-11-20 at 14:43 +0100, Michal Hocko wrote:
> From: Michal Hocko <mhocko@...e.com>
> 
> do_migrate_range has been limiting the number of pages to migrate to
> 256
> for some reason which is not documented. 

When looking back at old memory-hotplug commits one feels pretty sad
about the brevity of the changelogs.

> Signed-off-by: Michal Hocko <mhocko@...e.com>

Reviewed-by: Oscar Salvador <osalvador@...e.de>