From: David Vrabel <david.vrabel@citrix.com>
To: Zoltan Kiss <zoltan.kiss@citrix.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: Re: [blkback] blkback statistic counters are signed values
Date: Wed, 6 Mar 2013 11:14:11 +0000 [thread overview]
Message-ID: <51372503.6080806@citrix.com> (raw)
In-Reply-To: <5136344F.7040602@citrix.com>
On 05/03/13 18:07, Zoltan Kiss wrote:
> Hi,
>
> On 04/03/13 19:22, Konrad Rzeszutek Wilk wrote:
>> Seems like the right approach. Could you send a patch please?
> I just sent it to you and linux-kernel@vger.kernel.org:
>
> http://lkml.indiana.edu/hypermail/linux/kernel/1303.0/02306.html
>
>> Thought that won't solve the problem when we overflow an 'unsigned
>> long long'.
> Well, I think it's good enough if the users of these values pay
> attention, and poll these sysfs entries often enough to detect that
> there was an overflow.
Unless my maths is wrong it will take millions of years for these sector
count statistics to overflow.
David
next prev parent reply other threads:[~2013-03-06 11:14 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-04 15:54 [blkback] blkback statistic counters are signed values Zoltan Kiss
2013-03-04 19:22 ` Konrad Rzeszutek Wilk
2013-03-05 18:07 ` Zoltan Kiss
2013-03-06 11:14 ` David Vrabel [this message]
2013-03-06 15:41 ` Konrad Rzeszutek Wilk
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