On 11/21/22 8:17 AM, Wenchao Hao wrote:
> And the function looks like following after change:
>
> static void __iscsi_unbind_session(struct work_struct *work)
> {
> struct iscsi_cls_session *session =
> container_of(work, struct iscsi_cls_session,
> unbind_work);
> struct Scsi_Host *shost = iscsi_session_to_shost(session);
> struct iscsi_cls_host *ihost = shost->shost_data;
> unsigned long flags;
> unsigned int target_id;
>
> ISCSI_DBG_TRANS_SESSION(session, "Unbinding session\n");
>
> /* Prevent new scans and make sure scanning is not in progress */
> mutex_lock(&ihost->mutex);
> spin_lock_irqsave(&session->lock, flags);
> if (session->target_state != ISCSI_SESSION_TARGET_SCANNED) {
What was the reason for not checking for ALLOCATED and freeing the ida
in that case?
> spin_unlock_irqrestore(&session->lock, flags);
> mutex_unlock(&ihost->mutex);
> ISCSI_DBG_TRANS_SESSION(session, "Skipping target unbinding: Session is %s.\n",
> iscsi_session_target_state_name[session->target_state]);
> return;
> }
> target_id = session->target_id;
> session->target_id = ISCSI_MAX_TARGET;
> session->target_state = ISCSI_SESSION_TARGET_UNBINDING;
> spin_unlock_irqrestore(&session->lock, flags);
> mutex_unlock(&ihost->mutex);
>
> scsi_remove_target(&session->dev);
>
> spin_lock_irqsave(&session->lock, flags);
> session->target_state = ISCSI_SESSION_TARGET_UNBOUND;
> spin_unlock_irqrestore(&session->lock, flags);
>
> if (session->ida_used)
> ida_free(&iscsi_sess_ida, target_id);
>
> iscsi_session_event(session, ISCSI_KEVENT_UNBIND_SESSION);
> ISCSI_DBG_TRANS_SESSION(session, "Completed target removal\n");
> }
>
>
>
