Commit 169e6cf0 authored by Juergen Gross's avatar Juergen Gross Committed by David Vrabel
Browse files

xen: scsiback: add LUN of restored domain 



When a xen domain is being restored the LUN state of a pvscsi device
is "Connected" and not "Initialising" as in case of attaching a new
pvscsi LUN.

This must be taken into account when adding a new pvscsi device for
a domain as otherwise the pvscsi LUN won't be connected to the
SCSI target associated with it.

Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
Reviewed-by: default avatarBoris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: default avatarDavid Vrabel <david.vrabel@citrix.com>
parent 78574878

drivers/xen/xen-scsiback.c

+14 −5
Original line number Diff line number Diff line
@@ -990,7 +990,7 @@ found: 
}



static void scsiback_do_add_lun(struct vscsibk_info *info, const char *state,

				char *phy, struct ids_tuple *vir)

				char *phy, struct ids_tuple *vir, int try)

{

	if (!scsiback_add_translation_entry(info, phy, vir)) {

		if (xenbus_printf(XBT_NIL, info->dev->nodename, state,
@@ -998,7 +998,7 @@ static void scsiback_do_add_lun(struct vscsibk_info *info, const char *state, 
			pr_err("xenbus_printf error %s\n", state);

			scsiback_del_translation_entry(info, vir);

		}

	} else {

	} else if (!try) {

		xenbus_printf(XBT_NIL, info->dev->nodename, state,

			      "%d", XenbusStateClosed);

	}
@@ -1058,11 +1058,20 @@ static void scsiback_do_1lun_hotplug(struct vscsibk_info *info, int op, 


	switch (op) {

	case VSCSIBACK_OP_ADD_OR_DEL_LUN:

		if (device_state == XenbusStateInitialising)

			scsiback_do_add_lun(info, state, phy, &vir);

		if (device_state == XenbusStateClosing)

		switch (device_state) {

		case XenbusStateInitialising:

			scsiback_do_add_lun(info, state, phy, &vir, 0);

			break;

		case XenbusStateConnected:

			scsiback_do_add_lun(info, state, phy, &vir, 1);

			break;

		case XenbusStateClosing:

			scsiback_do_del_lun(info, state, &vir);

			break;

		default:

			break;

		}

		break;



	case VSCSIBACK_OP_UPDATEDEV_STATE:

		if (device_state == XenbusStateInitialised) {

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