linux-kernel - Re: [PATCH] mm/page_alloc: Deprecate kernelcore=nn and movable

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Message-ID: <alpine.DEB.2.21.1807171344320.12251@chino.kir.corp.google.com>
Date:   Tue, 17 Jul 2018 13:46:43 -0700 (PDT)
From:   David Rientjes <rientjes@...gle.com>
To:     Baoquan He <bhe@...hat.com>
cc:     mhocko@...nel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, akpm@...ux-foundation.org, corbet@....net,
        linux-doc@...r.kernel.org
Subject: Re: [PATCH] mm/page_alloc: Deprecate kernelcore=nn and
 movable_core=

On Tue, 17 Jul 2018, Baoquan He wrote:

> We can still use 'kernelcore=mirror' or 'movable_node' for the usage
> of hotplug and movable zone. If somebody shows up with a valid usecase
> we can reconsider.
> 

We actively use kernelcore=n%, I had recently added support for the option 
in the first place in 4.17.  It's certainly not deprecated.

commit a5c6d6509342785bef53bf9508e1842b303f1878
Author: David Rientjes <rientjes@...gle.com>
Date:   Thu Apr 5 16:23:09 2018 -0700

    mm, page_alloc: extend kernelcore and movablecore for percent