if (len) {
err = scsi_map_user_pages(rq->end_io_data, cmd, uaddr, len, rw);
if (err) {
- eprintk("%p %d\n", cmd, err);
- err = -EAGAIN;
+ /*
+ * user-space daemon bugs or OOM
+ * TODO: we can do better for OOM.
+ */
+ struct scsi_tgt_queuedata *qdata;
+ struct list_head *head;
+ unsigned long flags;
+
+ eprintk("cmd %p ret %d uaddr %lx len %d rw %d\n",
+ cmd, err, uaddr, len, rw);
+
+ qdata = shost->uspace_req_q->queuedata;
+ head = &qdata->cmd_hash[cmd_hashfn(tcmd->tag)];
+
+ spin_lock_irqsave(&qdata->cmd_hash_lock, flags);
+ list_add(&tcmd->hash_list, head);
+ spin_unlock_irqrestore(&qdata->cmd_hash_lock, flags);
+
goto done;
}
}