CONFIGFS_ATTR(nvmet_ns_, buffered_io);
+static ssize_t nvmet_ns_revalidate_size_store(struct config_item *item,
+ const char *page, size_t count)
+{
+ struct nvmet_ns *ns = to_nvmet_ns(item);
+ bool val;
+
+ if (strtobool(page, &val))
+ return -EINVAL;
+
+ if (!val)
+ return -EINVAL;
+
+ mutex_lock(&ns->subsys->lock);
+ if (!ns->enabled) {
+ pr_err("enable ns before revalidate.\n");
+ mutex_unlock(&ns->subsys->lock);
+ return -EINVAL;
+ }
+ nvmet_ns_revalidate(ns);
+ mutex_unlock(&ns->subsys->lock);
+ return count;
+}
+
+CONFIGFS_ATTR_WO(nvmet_ns_, revalidate_size);
+
static struct configfs_attribute *nvmet_ns_attrs[] = {
&nvmet_ns_attr_device_path,
&nvmet_ns_attr_device_nguid,
&nvmet_ns_attr_ana_grpid,
&nvmet_ns_attr_enable,
&nvmet_ns_attr_buffered_io,
+ &nvmet_ns_attr_revalidate_size,
#ifdef CONFIG_PCI_P2PDMA
&nvmet_ns_attr_p2pmem,
#endif