The block layer creates two bios for each copy operation. The bios travel
independently through the storage stack and they are paired at the block
device.
There is a theoretical problem with this - the block device stack only
guarantees forward progress for a single bio. When two bios are sent,
The block layer creates two bios for each copy operation. The bios travel
independently through the storage stack and they are paired at the block
device.
There is a theoretical problem with this - the block device stack only
guarantees forward progress for a single bio. When two bios are sent,
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