[dm-devel] Re: [PATCH]scsi_dh_rdac: Retry for Quiescence in Progress in rdac device handler
Chandra Seetharaman
sekharan at us.ibm.com
Mon Jan 26 21:04:18 UTC 2009
On Mon, 2009-01-26 at 21:29 +0530, Chauhan, Vijay wrote:
> During device discovery read capacity fails with 0x068b02 and sets the device size to 0. As a reason any I/O submitted to this path gets killed at sd_prep_fn with BLKPREP_KILL. This patch is to retry for 0x068b02. Please apply.
>
> From: Vijay Chauhan<vijay.chauhan at lsi.com>
>
> This patch adds retry for Quiescence in Progress in rdac device handler.
>
> Signed-off-by: Vijay Chauhan <vijay.chauhan at lsi.com>
Acked-by: Chandra Seetharaman <sekharan at us.ibm.com>
>
> ---
> --- linux-2.6.29-rc2/drivers/scsi/device_handler/scsi_dh_rdac.c.orig 2009-01-26 20:46:05.000000000 +0530
> +++ linux-2.6.29-rc2/drivers/scsi/device_handler/scsi_dh_rdac.c 2009-01-26 20:47:34.000000000 +0530
> @@ -579,6 +579,11 @@ static int rdac_check_sense(struct scsi_
> * Power On, Reset, or Bus Device Reset, just retry.
> */
> return ADD_TO_MLQUEUE;
> + if (sense_hdr->asc == 0x8b && sense_hdr->ascq == 0x02)
> + /*
> + * Quiescence in progress , just retry.
> + */
> + return ADD_TO_MLQUEUE;
> break;
> }
> /* success just means we do not care what scsi-ml does */
> --
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