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scsi: libsas: Disable asynchronous aborts for SATA devices

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commit c9f926000f upstream.

Handling CD-ROM devices from libsas is decidedly odd, as libata relies
on SCSI EH to be started to figure out that no medium is present.  So we
cannot do asynchronous aborts for SATA devices.

Fixes: 909657615d ("scsi: libsas: allow async aborts")
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Yves-Alexis Perez <corsac@debian.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hannes Reinecke 2018-01-10 09:34:02 +01:00 committed by Greg Kroah-Hartman
parent 25b13c2f4f
commit edd0a403a1
1 changed files with 15 additions and 2 deletions
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17
drivers/scsi/libsas/sas_scsi_host.c
View file

@ -486,15 +486,28 @@ static int sas_queue_reset(struct domain_device *dev, int reset_type,
int sas_eh_abort_handler(struct scsi_cmnd *cmd)
{
int res;
int res = TMF_RESP_FUNC_FAILED;
struct sas_task *task = TO_SAS_TASK(cmd);
struct Scsi_Host *host = cmd->device->host;
struct domain_device *dev = cmd_to_domain_dev(cmd);
struct sas_internal *i = to_sas_internal(host->transportt);
unsigned long flags;
if (!i->dft->lldd_abort_task)
return FAILED;
res = i->dft->lldd_abort_task(task);
spin_lock_irqsave(host->host_lock, flags);
/* We cannot do async aborts for SATA devices */
if (dev_is_sata(dev) && !host->host_eh_scheduled) {
spin_unlock_irqrestore(host->host_lock, flags);
return FAILED;
}
spin_unlock_irqrestore(host->host_lock, flags);
if (task)
res = i->dft->lldd_abort_task(task);
else
SAS_DPRINTK("no task to abort\n");
if (res == TMF_RESP_FUNC_SUCC || res == TMF_RESP_FUNC_COMPLETE)
return SUCCESS;