linux-kernel - Re: [PATCH] mm, memory_hotplug: Don't bail out in do_migrate

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Message-ID: <20181211102014.GF1286@dhcp22.suse.cz>
Date:   Tue, 11 Dec 2018 11:20:14 +0100
From:   Michal Hocko <mhocko@...nel.org>
To:     David Hildenbrand <david@...hat.com>
Cc:     Oscar Salvador <osalvador@...e.de>, akpm@...ux-foundation.org,
        pasha.tatashin@...een.com, dan.j.williams@...il.com,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH] mm, memory_hotplug: Don't bail out in do_migrate_range
 prematurely

On Tue 11-12-18 10:35:53, David Hildenbrand wrote:
> So somehow remember if we had issues with one page and instead of
> reporting 0, report e.g. -EAGAIN?

There is no consumer of the return value right now and it is not really
clear whether we need one. I would just make do_migrate_range return void.
-- 
Michal Hocko
SUSE Labs