Mike Christie wrote:
Hi Jens and James, As you know a side effect of SCSI using REQ_BLOCK_PC is that commands that used to originate from SCSI do not obey the retries value, and we now add extra processing of failures in scsi_io_completion. The patch below adds a retry count on the request which is used like the timeout value. And it changes scsi_generic_done to always complete the entire command which emulates the old behavior we had with scsi_wait_req/scsi_do_req where scsi_io_completeion does not process the error and request additional retries.
Oh yeah this is also what sd does with REQ_BLOCK_PC commands and with my other patch for st in this mail http://marc.theaimsgroup.com/?l=linux-scsi&m=112708046601499&w=2 it is what tape will do.
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