The following patches made over a combo of linus's tree nd Martin's 6.1-queue tree (the are both missing patches) allow scsi_execute* users to control exactly which errors are retried. The patches allow scsi_execute users to pass in an array of failures which they want retried and also specify how many times they want them retried. If we hit an error that the user did not specify then we drop down the the default behavior. This allows us to remove all the retry code from the callers except for a couple cases where the caller: 1. wants to sleep between retries or had strict timings (sd_spinup_disk or ufs). 2. needed to set some internal state between retries (scsi_test_unit_ready) 3. retried based on the error code and it's internal state (alua rtpg). These patches have only been lightly tested. I'm more looking for an ACK on the idea because this is different than what I mentioned on the list a couple weeks ago. TODO: 1. There is still the scsi_cmnd->allowed/retries. I think I could just add a default scsi_failure struct on the scsi_cmnd and make the code more common.
