Hello Community,
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We are observing that after a blockcopy, the disk backend will inherit from original disk's cache mode configuration even though a new cache mode is given. Specifically, the function https://github.com/libvirt/libvirt/blob/cd94d891fb4b5cdda229f58b1dee261d5514082b/src/qemu/qemu_domain.c#L10887 which eventually calls
qemuDomainPrepareDiskSourceData and override input config.
My question is is this on purpose? Because seems like qemu allows different configs.
Thnak you very much for the help.
Best Regards,
Jiatong Shen
