linux-kernel - Re: [PATCH 1/3 staging-next] android: Collect statistics from lowmemorykiller

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Message-ID: <20170210091459.GF10893@dhcp22.suse.cz>
Date:   Fri, 10 Feb 2017 10:15:00 +0100
From:   Michal Hocko <mhocko@...nel.org>
To:     peter enderborg <peter.enderborg@...ymobile.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devel@...verdev.osuosl.org, Riley Andrews <riandrews@...roid.com>,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        Arve Hjønnevåg <arve@...roid.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 1/3 staging-next] android: Collect statistics from
 lowmemorykiller

On Fri 10-02-17 10:05:34, peter enderborg wrote:
> On 02/10/2017 08:59 AM, Michal Hocko wrote:
[...]
> > The approach was wrong from the day 1. Abusing slab shrinkers
> > is just a bad place to stick this logic. This all belongs to the
> > userspace.
>
> But now it is there and we have to stick with it.

It is also adding maintenance cost. Just have a look at the git log and
check how many patches were just a result of the core changes which
needed a sync.

I seriously doubt that any of the android devices can run natively on
the Vanilla kernel so insisting on keeping this code in staging doesn't
give much sense to me.
-- 
Michal Hocko
SUSE Labs