Re: [Xen-devel] [blkback] blkback statistic counters are signed values

[David Vrabel <david.vrabel@xxxxxxxxxx>]

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@xxxxxxxxxxxxxxx:
> 
> 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

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