On a Friday in 2023, Peter Krempa wrote:
This series prepares the setup of the block device backend for removal of the raw driver from the block graph, and actually removes it from the migration NBD connection. Unfortunately for normal usage it's not yet possible as qemu then records the protocol driver name in the backing file format field which would break with older versions of libvirt (see my other series). Peter Krempa (17): qemu: block: Introduce qemuBlockStorageSourceGetSliceNodename qemu: block: Use qemuBlockStorageSourceNeedsStorageSliceLayer only for setup qemu: block: Introduce helper for deciding when a 'format' layer is needed qemuBlockStorageSourceGetBlockdevStorageSliceProps: Allow turning the slice layer into effective blockdev layer qemuBlockStorageSourceAttachPrepareBlockdev: Prepare for optionally missing format layer qemuBlockStorageSourceDetachPrepare: Prepare for possibly missing 'format' layer qemuDomainPrepareStorageSourceBlockdevNodename: Restructure code to allow missing 'format' layer qemuBlockStorageSourceGetEffectiveNodename: Prepare for missing 'format' driver qemu: block: Extract logic from qemuBlockReopenReadWrite/ReadOnly qemu: block: Absorb logic from qemuBlockReopenFormat to qemuBlockReopenAccess qemu: monitor: Sanitize arguments of qemuMonitorBlockdevReopen testQemuMonitorJSONBlockdevReopen: Don't use qemuBlockReopenFormatMon qemu: block: Absorb qemuBlockReopenFormatMon into qemuBlockReopenAccess qemuBlockReopenAccess: prepare for removal of 'raw' format layer qemuMigrationSrcNBDCopyCancel: Use qemuBlockStorageSourceAttachRollback to detach migration NBD blockdevs qemu: block: Remove unused qemuBlockStorageSourceDetachOneBlockdev qemuMigrationSrcNBDStorageCopyBlockdevPrepareSource: Don't setup 'raw' layer for migration NBD connection src/qemu/qemu_block.c | 257 ++++++++++++++++++----------------- src/qemu/qemu_block.h | 16 +-- src/qemu/qemu_domain.c | 17 ++- src/qemu/qemu_migration.c | 19 ++- src/qemu/qemu_monitor.c | 7 +- src/qemu/qemu_monitor.h | 2 +- src/qemu/qemu_monitor_json.c | 6 +- src/qemu/qemu_monitor_json.h | 2 +- tests/qemumonitorjsontest.c | 10 +- 9 files changed, 185 insertions(+), 151 deletions(-)
Reviewed-by: Ján Tomko <jtomko@xxxxxxxxxx> Jano
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