[SCSI] libsas: mark all domain devices gone if root port disappears
If the top level expander is hot removed, mark all child devices as gone
before unregistration to short circuit futile recovery.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c
index 789b508..b91866a 100644
--- a/drivers/scsi/libsas/sas_discover.c
+++ b/drivers/scsi/libsas/sas_discover.c
@@ -299,12 +299,16 @@
}
}
-void sas_unregister_domain_devices(struct asd_sas_port *port)
+void sas_unregister_domain_devices(struct asd_sas_port *port, int gone)
{
struct domain_device *dev, *n;
- list_for_each_entry_safe_reverse(dev, n, &port->dev_list, dev_list_node)
+ list_for_each_entry_safe_reverse(dev, n, &port->dev_list, dev_list_node) {
+ if (gone)
+ set_bit(SAS_DEV_GONE, &dev->state);
sas_unregister_dev(port, dev);
+ }
+
list_for_each_entry_safe(dev, n, &port->disco_list, disco_list_node)
sas_unregister_dev(port, dev);