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

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

Pull request

# gpg: Signature made Mon 06 Dec 2021 07:27:19 AM PST
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]

* tag 'block-pull-request' of https://gitlab.com/stefanha/qemu:
  virtio-blk: Fix clean up of host notifiers for single MR transaction.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>