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Go Back   Linux Archive > Redhat > Device-mapper Development

 
 
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Old 05-22-2012, 04:31 AM
"Jun'ichi Nomura"
 
Default multipath_busy() stalls IO due to scsi_host_is_busy()

Hi,

On 05/22/12 00:42, Bernd Schubert wrote:
> On 05/17/2012 11:09 AM, Jun'ichi Nomura wrote:
>> However, when it is target/host that is busy, I think dm should
>> send the request down and let SCSI, which has better knowledge
>> about the shared resource, do appropriate starvation control.
>>
>> Could you try the attached patch?
...
> Thanks, that works fine! I had something else in my mind for multipath, but if this can go into scsi we don't need the multipath patch anymore.
> Are you going to officially submit it (missing signed-off)?

Thank you for testing.
Yes, I'll submit it officially with your Reported-by/Tested-by.

Also, a note suggested by Mike Snitzer will be added to the
patch description. (Thanks Mike.)

--
Jun'ichi Nomura, NEC Corporation

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