Merge tag 'pull-parallels-2026-09-11' of https://gitlab.com/dlunev/qemu into stagingHEADmaster

parallels patches

- harden the Format Extension parser against a crafted image
- add persistent dirty bitmap support: store, remove and report them
- let image extensions be updated in read-write mode
- make qemu-img check report the damage it is meant to report
  instead of dying on it
- drop the unused clusters at the end of the image
- cover the new behaviour in the parallels iotests, and run more of
  the generic ones on parallels

Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>

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* tag 'pull-parallels-2026-09-11' of https://gitlab.com/dlunev/qemu: (29 commits)
  tests: Add parallels format support to image-fleecing
  tests: Turned on 256, 299, 304 and block-status-cache for parallels format
  iotests: cover a broken Format Extension and a combined repair
  iotests: rename parallels-read-bitmap to parallels-bitmap
  parallels: implement removing a stored dirty bitmap
  parallels: do not trust the bitmaps of an image which was not closed
  parallels: reject a bitmap L1 entry outside the data area
  iotests: run the persistent dirty bitmap test on parallels
  iotests: cover the Format Extension against the leak check
  parallels: Handle L1 entries equal to one
  parallels: Let image extensions work in RW mode
  parallels: Add dirty bitmaps saving
  parallels: Remove unnecessary data_end field
  parallels: Drop unused clusters at the end of the image
  parallels: Create used bitmap even if checks needed
  parallels: do not let the check die on what it is meant to report
  parallels: Move host clusters allocation to a separate function
  parallels: Limit search in parallels_mark_used to the last marked cluster
  parallels: Make mark_used() a global function
  iotests: cover inactivating a read-only node
  ...

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

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