Merge tag 'block-pull-request' of https://gitlab.com/stefanha/qemu into staging

Pull request

v3:
- Drop UFS emulation due to CI failures
- Add "aio-posix: zero out io_uring sqe user_data"

# -----BEGIN PGP SIGNATURE-----
#
# iQEzBAABCAAdFiEEhpWov9P5fNqsNXdanKSrs4Grc8gFAmTvLIEACgkQnKSrs4Gr
# c8itVggAka3RMkEclbeW7JKJBOolm3oUuJTobV8oJfDNMQ8mmom9JkXVUctyPWQT
# EF+oeqZz1omjr0Dk7YEA2toCahTbXm/UsG7i6cZg8JXPl6e9sOne0j+p5zO5x/kc
# YlG43SBQJHdp/BfTm/gvwUh0W2on0wadaeEV82m3ZyIrZGTgNcrC1p1gj5dwF5VX
# SqW02mgALETECyJpo8O7y9vNUYGxEtETG9jzAhtrugGpYk4bPeXlm/rc+2zwV+ET
# YCnfUvhjhlu5vS4nkta6natg0If16ODjy35vWYm/aGlgveGTqQq9HWgTL71eNuxm
# Smn+hJHuvkyBclKjbGiiO1W1MuG1/g==
# =UvNK
# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 30 Aug 2023 07:48:17 EDT
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [ultimate]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [ultimate]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* tag 'block-pull-request' of https://gitlab.com/stefanha/qemu:
  aio-posix: zero out io_uring sqe user_data
  tests/qemu-iotests/197: add testcase for CoR with subclusters
  block/io: align requests to subcluster_size
  block: add subcluster_size field to BlockDriverInfo
  block-migration: Ensure we don't crash during migration cleanup

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>