linux-kernel - Re: [PATCH 4/6 v5] Memory DLPAR Handling

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Date:	Thu, 05 Nov 2009 10:51:27 -0800
From:	Roland Dreier <rdreier@...co.com>
To:	Nathan Fontenot <nfont@...tin.ibm.com>
Cc:	linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/6 v5] Memory DLPAR Handling

This isn't a review of this patch -- more a question out of curiousity
about how you actually can do memory remove in practice.  Do you have
any coordination between the platform/hypervisor and the kernel to make
sure that a memory region you might want to remove later gets put into
zone_movable so that there's a chance for the kernel to vacate it?  Or
do you have some other way to coordinate or at least expose which
regions of memory the kernel will have a chance at releasing?

Thanks,
  Roland
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