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scsi: add DID_REQUEUE to the error handling

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We have a DID_IMM_RETRY to require a retry at once, but we could do with
a DID_REQUEUE to instruct the mid-layer to treat this command in the
same manner as QUEUE_FULL or BUSY (i.e. halt the submission until
another command returns ... or the queue pressure builds if there are no
outstanding commands).

Signed-off-by: James Bottomley <[email protected]>
This commit is contained in:
2005-04-12 17:49:09 -05:00 • committed by James Bottomley
commit 686579d95d
2 changed files with 5 additions and 0 deletions
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3
drivers/scsi/scsi_error.c
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@ -1306,6 +1306,9 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd)
case DID_IMM_RETRY:
return NEEDS_RETRY;
case DID_REQUEUE:
return ADD_TO_MLQUEUE;
case DID_ERROR:
if (msg_byte(scmd->result) == COMMAND_COMPLETE &&
status_byte(scmd->result) == RESERVATION_CONFLICT)