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Diffstat (limited to 'drivers/scsi/libsas/sas_ata.c')
-rw-r--r--drivers/scsi/libsas/sas_ata.c41
1 files changed, 35 insertions, 6 deletions
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index d109cc3a17b6..a59fcdc8fd63 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -523,6 +523,31 @@ static void sas_ata_set_dmamode(struct ata_port *ap, struct ata_device *ata_dev)
i->dft->lldd_ata_set_dmamode(dev);
}
+static void sas_ata_sched_eh(struct ata_port *ap)
+{
+ struct domain_device *dev = ap->private_data;
+ struct sas_ha_struct *ha = dev->port->ha;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ha->lock, flags);
+ if (!test_and_set_bit(SAS_DEV_EH_PENDING, &dev->state))
+ ha->eh_active++;
+ ata_std_sched_eh(ap);
+ spin_unlock_irqrestore(&ha->lock, flags);
+}
+
+void sas_ata_end_eh(struct ata_port *ap)
+{
+ struct domain_device *dev = ap->private_data;
+ struct sas_ha_struct *ha = dev->port->ha;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ha->lock, flags);
+ if (test_and_clear_bit(SAS_DEV_EH_PENDING, &dev->state))
+ ha->eh_active--;
+ spin_unlock_irqrestore(&ha->lock, flags);
+}
+
static struct ata_port_operations sas_sata_ops = {
.prereset = ata_std_prereset,
.hardreset = sas_ata_hard_reset,
@@ -536,6 +561,8 @@ static struct ata_port_operations sas_sata_ops = {
.port_start = ata_sas_port_start,
.port_stop = ata_sas_port_stop,
.set_dmamode = sas_ata_set_dmamode,
+ .sched_eh = sas_ata_sched_eh,
+ .end_eh = sas_ata_end_eh,
};
static struct ata_port_info sata_port_info = {
@@ -591,7 +618,6 @@ void sas_ata_task_abort(struct sas_task *task)
spin_lock_irqsave(q->queue_lock, flags);
blk_abort_request(qc->scsicmd->request);
spin_unlock_irqrestore(q->queue_lock, flags);
- scsi_schedule_eh(qc->scsicmd->device->host);
return;
}
@@ -708,10 +734,6 @@ static void async_sas_ata_eh(void *data, async_cookie_t cookie)
struct ata_port *ap = dev->sata_dev.ap;
struct sas_ha_struct *ha = dev->port->ha;
- /* hold a reference over eh since we may be racing with final
- * remove once all commands are completed
- */
- kref_get(&dev->kref);
sas_ata_printk(KERN_DEBUG, dev, "dev error handler\n");
ata_scsi_port_error_handler(ha->core.shost, ap);
sas_put_device(dev);
@@ -720,7 +742,7 @@ static void async_sas_ata_eh(void *data, async_cookie_t cookie)
void sas_ata_strategy_handler(struct Scsi_Host *shost)
{
struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
- LIST_HEAD(async);
+ ASYNC_DOMAIN_EXCLUSIVE(async);
int i;
/* it's ok to defer revalidation events during ata eh, these
@@ -742,6 +764,13 @@ void sas_ata_strategy_handler(struct Scsi_Host *shost)
list_for_each_entry(dev, &port->dev_list, dev_list_node) {
if (!dev_is_sata(dev))
continue;
+
+ /* hold a reference over eh since we may be
+ * racing with final remove once all commands
+ * are completed
+ */
+ kref_get(&dev->kref);
+
async_schedule_domain(async_sas_ata_eh, dev, &async);
}
spin_unlock(&port->dev_list_lock);