linux-kernel - Re: [PATCHv3 06/10] xen/balloon: only hotplug additional memory if required

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Message-ID: <20150731231826.GB3488@olila.local.net-space.pl>
Date:	Sat, 1 Aug 2015 01:18:26 +0200
From:	Daniel Kiper <daniel.kiper@...cle.com>
To:	David Vrabel <david.vrabel@...rix.com>
Cc:	linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org,
	linux-mm@...ck.org, Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>
Subject: Re: [PATCHv3 06/10] xen/balloon: only hotplug additional memory if
 required

On Thu, Jul 30, 2015 at 06:03:08PM +0100, David Vrabel wrote:
> Now that we track the total number of pages (included hotplugged
> regions), it is easy to determine if more memory needs to be
> hotplugged.
>
> Add a new BP_WAIT state to signal that the balloon process needs to
> wait until kicked by the memory add notifier (when the new section is
> onlined by userspace).
>
> Signed-off-by: David Vrabel <david.vrabel@...rix.com>

Reviewed-by: Daniel Kiper <daniel.kiper@...cle.com>

Daniel
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