linux-kernel - Re: [PATCHv2 06/10] xen/balloon: only hotplug additional memory if required

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Message-ID: <55B8F92B.2060900@citrix.com>
Date:	Wed, 29 Jul 2015 17:02:51 +0100
From:	David Vrabel <david.vrabel@...rix.com>
To:	Daniel Kiper <daniel.kiper@...cle.com>
CC:	<xen-devel@...ts.xenproject.org>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	<linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>
Subject: Re: [PATCHv2 06/10] xen/balloon: only hotplug additional memory if
 required

On 29/07/15 16:55, Daniel Kiper wrote:
> On Fri, Jul 24, 2015 at 12:47:44PM +0100, David Vrabel wrote:
>> --- a/drivers/xen/balloon.c
>> +++ b/drivers/xen/balloon.c
>> @@ -75,12 +75,14 @@
>>   * balloon_process() state:
>>   *
>>   * BP_DONE: done or nothing to do,
>> + * BP_WAIT: wait to be rescheduled,
> 
> BP_SLEEP? BP_WAIT suggests that balloon process waits for something in a loop.

Waiting in a loop is what wait_event() does.

David
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