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# Date Author Comment
08e4ed6c 01/25/2013 07:18 pm Paolo Bonzini

mirror: add buf-size argument to drive-mirror

This makes sense when the next commit starts using the extra buffer space
to perform many I/O operations asynchronously.

Signed-off-by: Paolo Bonzini <>
Signed-off-by: Kevin Wolf <>
b812f671 01/25/2013 07:18 pm Paolo Bonzini

mirror: perform COW if the cluster size is bigger than the granularity

When mirroring runs, the backing files for the target may not yet be
ready. However, this means that a copy-on-write operation on the target
would fill the missing sectors with zeros. Copy-on-write only happens...
44c7ca5e 10/24/2012 11:26 am Paolo Bonzini

qemu-iotests: add mirroring test case

Signed-off-by: Paolo Bonzini <>
Signed-off-by: Kevin Wolf <>
9dfa9f59 10/24/2012 11:26 am Paolo Bonzini

qemu-iotests: add testcases for mirroring on-source-error/on-target-error

The new options are tested with blkdebug on both the source and the
target.

Signed-off-by: Paolo Bonzini <>
Signed-off-by: Kevin Wolf <>