linux-kernel - RE: [PATCH 0/4] hv_balloon: fixes for num_pages

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Message-ID: <CY4PR2101MB08679C5C6D0F3464C273F41ECA380@CY4PR2101MB0867.namprd21.prod.outlook.com>
Date:   Thu, 30 Nov 2017 00:55:27 +0000
From:   Haiyang Zhang <haiyangz@...rosoft.com>
To:     Vitaly Kuznetsov <vkuznets@...hat.com>,
        KY Srinivasan <kys@...rosoft.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Stephen Hemminger" <sthemmin@...rosoft.com>,
        Dexuan Cui <decui@...rosoft.com>,
        "devel@...uxdriverproject.org" <devel@...uxdriverproject.org>
Subject: RE: [PATCH 0/4] hv_balloon: fixes for num_pages_onlined accounting
 and misc improvements



> -----Original Message-----
> From: Vitaly Kuznetsov [mailto:vkuznets@...hat.com]
> Sent: Tuesday, November 28, 2017 8:30 AM
> To: Alex Ng <alexng@...rosoft.com>; KY Srinivasan <kys@...rosoft.com>
> Cc: linux-kernel@...r.kernel.org; Haiyang Zhang <haiyangz@...rosoft.com>;
> Stephen Hemminger <sthemmin@...rosoft.com>; Dexuan Cui
> <decui@...rosoft.com>; devel@...uxdriverproject.org
> Subject: Re: [PATCH 0/4] hv_balloon: fixes for num_pages_onlined
> accounting and misc improvements
> 
> Vitaly Kuznetsov <vkuznets@...hat.com> writes:
> 
> > While doing routing code review I noticed that commit 6df8d9aaf3af
> > ("Drivers: hv: balloon: Correctly update onlined page count")
> > introduced an issue with num_pages_onlined accounting on memory
> > offlining. Deeper look showed that the accounting was always buggy. This is
> fixed in PATCH3.
> > PATCHes 1 and 2 are preparatory cleanups, PATCH4 adds a tracepoint to
> > post_status so it's now possible to see what's being sent to the host
> > and where the data comes from.
> >
> 
> K. Y., Alex,
> 
> did you have a chance to take a look?
> 
> Thanks,
> 
> --
>   Vitaly

Dexuan, 

Maybe, you can take a look? Thanks.