Re: [PATCH] vmw_pvscsi: fixup tagging

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On 10/17/2014 08:34 PM, Arvind Kumar wrote:
Hi Christoph,

Thanks for the change. Sorry for the delay. The change looks fine to me. I just have a question.

The comment in include/scsi/scsi_cmnd.h says:

struct scsi_cmnd {
...
              unsigned char tag; /* SCSI-II queued command tag */
}

Is that comment not right? Should we update that too?

The 'tag' field from the scsi_cmnd is indeed meant for the SCSI-II queued command tag. But due to recent changes 'struct request' also
contains a tag number which is used to implement a tag map.
So the 'tag; field from struct scsi_cmnd is basically obsolete,
and we're working on removing it.

Cheers,

Hannes
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