* [stable] Support Attach and Detach operations for ReadWriteOnce (RWO) volumes that use iSCSI and Fibre Channel plugins.

* [stable] Expose storage usage metrics

  * The available capacity of a given Persistent Volume (PV) is available by calling the Kubernetes metrics API.

* [stable] Volume plugin metrics

func TestXLStorageReadVersionLegacy(t *testing.T) {

    will be enforced on all pods by default. To opt-out set
    `--enforce-node-allocatable=””`
  * Hard Eviction Thresholds will be subtracted from Capacity while calculating
    Node Allocatable. This will result in a reduction of schedulable capacity in
    clusters post upgrade where kubelet hard eviction has been turned on for
    memory. To opt-out set `--experimental-allocatable-ignore-eviction=true`.

* allow restricting subresource access ([#30001](https://github.com/kubernetes/kubernetes/pull/30001), [@deads2k](https://github.com/deads2k))
* Fix PVC.Status.Capacity and AccessModes after binding ([#29982](https://github.com/kubernetes/kubernetes/pull/29982), [@jsafrane](https://github.com/jsafrane))

Originally, Kubernetes used the v1 cgroups API. With that design, the QoS class for a pod only applied to CPU resources (such as `cpu_shares`). The Kubernetes cgroup manager uses `memory.limit_in_bytes` in v1 cgroups to limit the memory capacity for a container, and uses `oom_scores` to recommend an order for killing container processes if an out-of-memory event occurs. This implementation has shortcomings: for `Guaranteed` pods, memory can not be fully reserved, and the page cache is at...

        }

        attrExpiration = sizeExpiration = 0;
    }

/**
 * Returns the length of this <tt>SmbFile</tt> in bytes. If this object
 * is a <tt>TYPE_SHARE</tt> the total capacity of the disk shared in
 * bytes is returned. If this object is a directory or a type other than
 * <tt>TYPE_SHARE</tt>, 0L is returned.
 *
 * @return The length of the file in bytes or 0 if this

      SortedSetMultimap<K, V> multimap) {
    return (Map<K, SortedSet<V>>) (Map<K, ?>) multimap.asMap();
  }

  /**
   * Returns {@link Multimap#asMap multimap.asMap()}. This is provided for parity with the other
   * more strongly-typed {@code asMap()} implementations.
   *
   * @since 15.0
   */
  public static <K extends @Nullable Object, V extends @Nullable Object>

- Removed attachable volume limits from the capacity of the node for the following volume type when the kubelet is started, affecting the following volume types when the corresponding csi driver is installed:
  - `awsElasticBlockStore` for `ebs.csi.aws.com`

  - Serve from cache for the whole period of ongoing throttling
  - Fix unwanted VMSS VMs cache invalidation
  - Enforce setting the number of retries if cloud provider backoff is enabled
  - Don't update capacity if VMSS provisioning state is updating
  - Support allocatable resources overrides via VMSS tags
  - Add missing stable labels in template nodes
  - Proactively set instance status to deleting on node deletions
  

* remove retry operation on attach/detach  azure disk ([#70568](https://github.com/kubernetes/kubernetes/pull/70568), [@andyzhangx](https://github.com/andyzhangx))
* Fix CSI volume limits not showing up in node's capacity and allocatable ([#70540](https://github.com/kubernetes/kubernetes/pull/70540), [@gnufied](https://github.com/gnufied))