Re: [PATCH RESEND 9/9] block, trace: implement ioblame - IO tracerwith origin tracking

From: Tejun Heo
Date: Wed Jan 11 2012 - 21:24:10 EST


Hello,

On Wed, Jan 11, 2012 at 6:19 PM, Namhyung Kim <namhyung.kim@xxxxxxx> wrote:
> I understood it's unreliable. BTW I think that sane userland tool must start
> both of ioblame_io and ioblame_create_intent, say, TPs at once - prior to
> triggering ioblame/enable, obviously. The ioblame/intents can be used as a
> backup just in case.

So, regardless of create_intent TP, the tool has to have code to read
ioblame/intents, right? I just don't see what the benefit of having an
extra interface which can't even be used by itself would be.

Thanks.

--
tejun
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