Merge branch 'for-5.14/block' into for-next

Merge branch 'for-5.14/block' into for-next

* for-5.14/block: (34 commits)
  block: remove bdget_disk
  block: factor out a part_devt helper
  block: move bd_part_count to struct gendisk
  block: split __blkdev_put
  block: move adjusting bd_part_count out of __blkdev_get
  block: move bd_mutex to struct gendisk
  block: move sync_blockdev from __blkdev_put to blkdev_put
  block: split __blkdev_get
  block: unexport blk_alloc_queue
  null_blk: convert to blk_alloc_disk/blk_cleanup_disk
  xpram: convert to blk_alloc_disk/blk_cleanup_disk
  dcssblk: convert to blk_alloc_disk/blk_cleanup_disk
  ps3vram: convert to blk_alloc_disk/blk_cleanup_disk
  n64cart: convert to blk_alloc_disk
  simdisk: convert to blk_alloc_disk/blk_cleanup_disk
  nfblock: convert to blk_alloc_disk/blk_cleanup_disk
  nvme-multipath: convert to blk_alloc_disk/blk_cleanup_disk
  nvdimm-pmem: convert to blk_alloc_disk/blk_cleanup_disk
  nvdimm-btt: convert to blk_alloc_disk/blk_cleanup_disk
  nvdimm-blk: convert to blk_alloc_disk/blk_cleanup_disk
  ...