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SubjectRe: [PATCH 23/23] io-controller: debug elevator fair queuing support
Vivek Goyal wrote:
> On Mon, Aug 31, 2009 at 04:57:53PM -0400, Rik van Riel wrote:
>> Vivek Goyal wrote:
>>> o More debugging help to debug elevator fair queuing support. Enabled under
>>> CONFIG_DEBUG_ELV_FAIR_QUEUING. Currently it prints vdisktime related
>>> trace messages in blktrace.
>>> Signed-off-by: Vivek Goyal <>
>> Is this meant for merging upstream, or just as a temporary
>> debugging help while this sits in a subsystem tree or -mm?
> I think it would be good if this also is merged upstream. A useful
> debugging help to track fairness and latecy related issues.

Fair enough. The code is small enough, anyway.

Acked-by: Rik van Riel <>

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