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[SCSI] Retry ADD_TO_MLQUEUE return value for EH commands

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A target reset when I/O is ongoing might result
an eventual device offline, as scsi_eh_completed_normally()
might return ADD_TO_MLQUEUE in addition to the
advertised SUCCESS, FAILED, and NEEDS_RETRY.

Which is unfortunate as scsi_send_eh_cmnd() will
therefore map ADD_TO_MLQUEUE to FAILED instead of
the more appropriate NEEDS_RETRY.

Signed-off-by: Hannes Reinecke <[email protected]>
Cc: Stable Tree <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
This commit is contained in:
Hannes Reinecke 2009-09-17 17:00:26 +02:00 • committed by James Bottomley
commit 6e883b0e42
1 changed files with 3 additions and 0 deletions
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3
drivers/scsi/scsi_error.c
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@ -725,6 +725,9 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd,
case NEEDS_RETRY:
case FAILED:
break;
case ADD_TO_MLQUEUE:
rtn = NEEDS_RETRY;
break;
default:
rtn = FAILED;
break;