linux-kernel - Re: [PATCH 2/5] Drivers: hv: balloon: account for gaps in hot add regions

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Date:   Thu, 25 Aug 2016 07:53:53 +0300
From:   Yauheni Kaliuta <yauheni.kaliuta@...hat.com>
To:     kys@...hange.microsoft.com
Cc:     gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
        devel@...uxdriverproject.org, olaf@...fle.de, apw@...onical.com,
        vkuznets@...hat.com, jasowang@...hat.com,
        leann.ogasawara@...onical.com, alexng@...rosoft.com
Subject: Re: [PATCH 2/5] Drivers: hv: balloon: account for gaps in hot add regions

Hi, kys!

>>>>> On Wed, 24 Aug 2016 16:23:10 -0700, kys   wrote:

[...]

 > -static bool pfn_covered(unsigned long start_pfn, unsigned long pfn_cnt)
 > +static int pfn_covered(unsigned long start_pfn, unsigned long pfn_cnt)
 >  {
 >  	struct list_head *cur;
 >  	struct hv_hotadd_state *has;
 > +	struct hv_hotadd_gap *gap;
 >  	unsigned long residual, new_inc;
 
 >  	if (list_empty(&dm_device.ha_region_list))

One "return false;" left here.


[...]

 > -		if (has->covered_end_pfn != start_pfn)
 > -			has->covered_end_pfn = start_pfn;
 > -
 > -		return true;
 > -
 > +		return 1;
 >  	}
 
 > -	return false;
 > +	return 0;
 >  }

[...]

-- 
WBR,
Yauheni Kaliuta