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[SCSI] Fix sense key MEDIUM ERROR processing and retry

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1) If the device reports an uncorrectable MEDIUM ERROR, such
as SK MEDIUM ERROR, ASC UNRECOVERED READ ERR, AMNF DATA
FIELD or RECORD NOT FOUND, then: In scsi_check_sense()
return SUCCESS so as to not retry -- the error is
uncorrectable -- this speeds up total processing time.

Signed-off-by: Luben Tuikov <ltuikov@yahoo.com>

Extracted the MEDIUM ERROR piece and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Luben Tuikov 2006-11-29 19:45:23 -08:00 committed by James Bottomley
parent 7b3b921163
commit fd1b494d4a
1 changed files with 5 additions and 0 deletions
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5
drivers/scsi/scsi_error.c
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@ -359,6 +359,11 @@ static int scsi_check_sense(struct scsi_cmnd *scmd)
return SUCCESS;
case MEDIUM_ERROR:
if (sshdr.asc == 0x11 || /* UNRECOVERED READ ERR */
sshdr.asc == 0x13 || /* AMNF DATA FIELD */
sshdr.asc == 0x14) { /* RECORD NOT FOUND */
return SUCCESS;
}
return NEEDS_RETRY;
case HARDWARE_ERROR: