Commit 0462a32b4f for qemu.org

commit 0462a32b4f63b2448b4a196381138afd50719dc4
Merge: 28ea66f6f9 df957115c4
Author: Stefan Hajnoczi <stefanha@redhat.com>
Date:   Fri Mar 14 09:31:13 2025 +0800

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

    Block layer patches

    - virtio-scsi: add iothread-vq-mapping parameter
    - Improve writethrough performance
    - Fix missing zero init in bdrv_snapshot_goto()
    - Added scripts/qcow2-to-stdout.py
    - Code cleanup and iotests fixes

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    * tag 'for-upstream' of https://repo.or.cz/qemu/kevin: (23 commits)
      scripts/qcow2-to-stdout.py: Add script to write qcow2 images to stdout
      virtio-scsi: only expose cmd vqs via iothread-vq-mapping
      virtio-scsi: handle ctrl virtqueue in main loop
      virtio-scsi: add iothread-vq-mapping parameter
      virtio: extract iothread-vq-mapping.h API
      virtio-blk: tidy up iothread_vq_mapping functions
      virtio-blk: extract cleanup_iothread_vq_mapping() function
      virtio-scsi: perform TMFs in appropriate AioContexts
      virtio-scsi: protect events_dropped field
      virtio-scsi: introduce event and ctrl virtqueue locks
      scsi: introduce requests_lock
      scsi: track per-SCSIRequest AioContext
      dma: use current AioContext for dma_blk_io()
      scsi-disk: drop unused SCSIDiskState->bh field
      iotests: Limit qsd-migrate to working formats
      aio-posix: Adjust polling time also for new handlers
      aio-posix: Separate AioPolledEvent per AioHandler
      aio-posix: Factor out adjust_polling_time()
      aio: Create AioPolledEvent
      block/io: Ignore FUA with cache.no-flush=on
      ...

    Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>