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

# -----BEGIN PGP SIGNATURE-----
#
# iQEzBAABCAAdFiEEhpWov9P5fNqsNXdanKSrs4Grc8gFAmLGlXYACgkQnKSrs4Gr
# c8jfNwf/fFfx4mPFwdnud9cseb9jFU44/RWJ2rJlYerbHIUUNvW0vAv1nGjuVVWT
# DeHxG2pkHPJQ5u4y/oivq4CCGGQ/Ukx/IEqJsnXEpWyKHosHJHlBrePt+/x+uygA
# RUOfReSq4gsK1FIcluuO/wnBzgREXL6lBsyIHtvG57hYSSESS10fCdRXBPJJMBcF
# pI8LpEgID5KuqPjXoO/Cv4qOXpOpO8540b8mzHP8wY1tYbBP9H4uqO1MJ/OFz8GU
# wDeRJEa66o9kwV7oym8T+KdZHR1f+Yfk0o1WmtfUgECJkM/8aUTvNog5SVeaHKqV
# 0ZQ4L6j8cprKXl9Ui+LXFp2YMMXV9g==
# =IjWZ
# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 07 Jul 2022 01:42:38 PM +0530
# 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:
  block/io_uring: clarify that short reads can happen
  io_uring: fix short read slow path

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