Merge tag 'pull-block-jobs-2024-09-30' of https://gitlab.com/vsementsov/qemu into staging

Block-jobs: improve backup fleecing

# -----BEGIN PGP SIGNATURE-----
#
# iQIzBAABCgAdFiEEi5wmzbL9FHyIDoahVh8kwfGfefsFAmb6WsYACgkQVh8kwfGf
# eftECRAAgRFGeVSE8+fgibsHH4TixG41Rg/4gi09KZuhNHCDQXiVWlpNf4isnjcg
# K3PAZh5XSr+ClYFzbwqrjnbjGOZDJRpfb5KAnWK2GhhbBrwFBAussJ/njOg3IB3V
# 1Qtm5cc6aKrFW4dybqWW96gZZkIxFuSOW0jAjuVh4r0ZfK03Xytm5WITYg7CLnnQ
# WqnseoQuj9HvT3F2A3HnRk4tIlgEb2eWppDhX8DiW/IO4C1ScfYpyP2cvUROCCGF
# GIJKv7/GRYosSUx4nsCCx1y7ISX0A5m1sCBlWbnQmYLIaJ/JpUYA2Tqxyfy3LTRE
# IJK/NcWcR9fCy2W1hNQJaKfIKoA7EdfqSvCFQmBHrEmtRYslejNRB3PjIUzth7Oh
# knfHxKSiXyGBdikaE5a//MUBK74pc9eC9zuIvIzxdLYxBTTGKZlTuhxG28QBoLO3
# /IcPd22loEZwh6PRgcFw7olsHo9lhfbiRua8dKwj384yJKFGU4s4QghSqRLxBHjP
# xnqQrU8uE3UOIVMY9ahsMxwUzzYGbwi0vQw98qLm26vcQBZRD1C9L97M9yCCrhQ4
# jfWyMsqdODA6V3IRpIV+JBL5KvRkC1fuoAw6Oh5R2r3K/WpX74gthATna9+/wGno
# 0wPiaEvBox8y6zLKAZe4MEA6phX0tb5In6OQB2JlILHa7gds4x4=
# =LqMR
# -----END PGP SIGNATURE-----
# gpg: Signature made Mon 30 Sep 2024 09:01:10 BST
# gpg:                using RSA key 8B9C26CDB2FD147C880E86A1561F24C1F19F79FB
# gpg: Good signature from "Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>" [unknown]
# gpg:                 aka "Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 8B9C 26CD B2FD 147C 880E  86A1 561F 24C1 F19F 79FB

* tag 'pull-block-jobs-2024-09-30' of https://gitlab.com/vsementsov/qemu:
  util/co-shared-resource: Remove unused co_try_get_from_shres
  block: Remove unused aio_task_pool_empty
  block/reqlist: allow adding overlapping requests
  backup: add minimum cluster size to performance options
  copy-before-write: allow specifying minimum cluster size

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>