- pr_debug("SPC-3 PR [%s] Service Action: %s RELEASE cleared"
- " reservation holder TYPE: %s ALL_TG_PT: %d\n",
- tfo->get_fabric_name(), (explicit) ? "explicit" : "implicit",
- core_scsi3_pr_dump_type(pr_reg->pr_res_type),
- (pr_reg->pr_reg_all_tg_pt) ? 1 : 0);
+ spin_lock(&dev->t10_pr.registration_lock);
+ list_del_init(&pr_reg->pr_reg_list);
+ /*
+ * If the I_T nexus is a reservation holder, the persistent reservation
+ * is of an all registrants type, and the I_T nexus is the last remaining
+ * registered I_T nexus, then the device server shall also release the
+ * persistent reservation.
+ */
+ if (!list_empty(&dev->t10_pr.registration_list) &&
+ ((pr_res_type == PR_TYPE_WRITE_EXCLUSIVE_ALLREG) ||
+ (pr_res_type == PR_TYPE_EXCLUSIVE_ACCESS_ALLREG))) {
+ dev->dev_pr_res_holder =
+ list_entry(dev->t10_pr.registration_list.next,
+ struct t10_pr_registration, pr_reg_list);
+ dev->dev_pr_res_holder->pr_res_type = pr_res_type;
+ dev->dev_pr_res_holder->pr_res_scope = pr_res_scope;
+ dev->dev_pr_res_holder->pr_res_holder = 1;
+ }
+ spin_unlock(&dev->t10_pr.registration_lock);
+out:
+ if (!dev->dev_pr_res_holder) {
+ pr_debug("SPC-3 PR [%s] Service Action: %s RELEASE cleared"
+ " reservation holder TYPE: %s ALL_TG_PT: %d\n",
+ tfo->get_fabric_name(), (explicit) ? "explicit" :
+ "implicit", core_scsi3_pr_dump_type(pr_res_type),
+ (pr_reg->pr_reg_all_tg_pt) ? 1 : 0);
+ }