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[PATCH] libata: implement and apply ata_eh_qc_complete/retry()

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Implement ata_eh_qc_complete/retry() using scsi_eh_finish_cmd() and
scsi_eh_flush_done_q().  This removes all eh scsicmd finish hacks from
low level drivers.

This change was first suggested by Jeff Garzik.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Tejun Heo
2006-01-23 13:09:37 +09:00
committed by Jeff Garzik
parent 041c5fc33c
commit a72ec4ce6d
8 changed files with 70 additions and 64 deletions
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12
drivers/scsi/sata_promise.c
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@ -400,21 +400,12 @@ static void pdc_eng_timeout(struct ata_port *ap)
goto out;
}
/* hack alert! We cannot use the supplied completion
* function from inside the ->eh_strategy_handler() thread.
* libata is the only user of ->eh_strategy_handler() in
* any kernel, so the default scsi_done() assumes it is
* not being called from the SCSI EH.
*/
qc->scsidone = scsi_finish_command;
switch (qc->tf.protocol) {
case ATA_PROT_DMA:
case ATA_PROT_NODATA:
printk(KERN_ERR "ata%u: command timeout\n", ap->id);
drv_stat = ata_wait_idle(ap);
qc->err_mask |= __ac_err_mask(drv_stat);
ata_qc_complete(qc);
break;
default:
@ -424,12 +415,13 @@ static void pdc_eng_timeout(struct ata_port *ap)
ap->id, qc->tf.command, drv_stat);
qc->err_mask |= ac_err_mask(drv_stat);
ata_qc_complete(qc);
break;
}
out:
spin_unlock_irqrestore(&host_set->lock, flags);
if (qc)
ata_eh_qc_complete(qc);
DPRINTK("EXIT\n");
}