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| author | Martin K. Petersen <martin.petersen@oracle.com> | 2008-07-17 04:28:33 -0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-07-26 15:14:55 -0400 |
| commit | 511e44f42e3239a4df77b8e0e46d294d98a768ad (patch) | |
| tree | a0af26ec88cbf65b79aa23640035fbdb7fca795b | |
| parent | 7027ad72a689797475973c6feb5f0b673382f779 (diff) | |
| download | kernel_samsung_smdk4412-511e44f42e3239a4df77b8e0e46d294d98a768ad.zip kernel_samsung_smdk4412-511e44f42e3239a4df77b8e0e46d294d98a768ad.tar.gz kernel_samsung_smdk4412-511e44f42e3239a4df77b8e0e46d294d98a768ad.tar.bz2 | |
[SCSI] Do not retry a request whose data integrity check failed
If initiator or target reject the I/O due to DIF errors there is no
point in retrying.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| -rw-r--r-- | drivers/scsi/scsi_error.c | 3 | ||||
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 9 |
2 files changed, 10 insertions, 2 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index a69397f..fc4b2d0 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -344,6 +344,9 @@ static int scsi_check_sense(struct scsi_cmnd *scmd) return /* soft_error */ SUCCESS; case ABORTED_COMMAND: + if (sshdr.asc == 0x10) /* DIF */ + return SUCCESS; + return NEEDS_RETRY; case NOT_READY: case UNIT_ATTENTION: diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index a47c05d..a20730c 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -950,9 +950,14 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) * 6-byte command. */ scsi_requeue_command(q, cmd); - return; - } else { + } else if (sshdr.asc == 0x10) /* DIX */ + scsi_end_request(cmd, -EIO, this_count, 0); + else scsi_end_request(cmd, -EIO, this_count, 1); + return; + case ABORTED_COMMAND: + if (sshdr.asc == 0x10) { /* DIF */ + scsi_end_request(cmd, -EIO, this_count, 0); return; } break; |