Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into staging

Block layer patches

- stream: Fix potential crash during job completion
- aio: add the aio_add_sqe() io_uring API
- qcow2: put discards in discard queue when discard-no-unref is enabled
- qcow2, vmdk: Restrict creation with secondary file using protocol
- qemu-img rebase: Fix assertion failure due to exceeding IO_BUF_SIZE
- iotests: Run iotests with sanitizers
- iotests: Add more image formats to the thorough testing
- iotests: Improve the dry run list to speed up thorough testing
- Code cleanup

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* tag 'for-upstream' of https://repo.or.cz/qemu/kevin: (28 commits)
  qemu-img rebase: don't exceed IO_BUF_SIZE in one operation
  qcow2, vmdk: Restrict creation with secondary file using protocol
  block: Allow drivers to control protocol prefix at creation
  tests/qemu-iotest: Add more image formats to the thorough testing
  tests/qemu-iotests: Improve the dry run list to speed up thorough testing
  tests/qemu-iotests/184: Fix skip message for qemu-img without throttle
  qcow2: put discards in discard queue when discard-no-unref is enabled
  qcow2: rename update_refcount_discard to queue_discard
  iotests: Run iotests with sanitizers
  qemu-img: Fix amend option parse error handling
  iotests: Test resizing file node under raw with size/offset
  block: Drop detach_subchain for bdrv_replace_node
  block: replace TABs with space
  block/io_uring: use non-vectored read/write when possible
  block/io_uring: use aio_add_sqe()
  aio-posix: add aio_add_sqe() API for user-defined io_uring requests
  aio-posix: add fdmon_ops->dispatch()
  aio-posix: unindent fdmon_io_uring_destroy()
  aio-posix: gracefully handle io_uring_queue_init() failure
  aio: add errp argument to aio_context_setup()
  ...

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