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qemu-iotests: Fix test 038
Test 038 uses asynchronous I/O, resulting (potentially) in a differentoutput for every run (regarding the order of the I/O accesses). This canbe fixed by simply sorting the I/O access messages, since their order isirrelevant anyway (for this asynchonous I/O)....
qcow2: Improve check for overlapping allocations
The old code detected an overlapping allocation even when theallocations didn't actually overlap, but were only adjacent.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>Reviewed-by: Eric Blake <eblake@redhat.com>...
qemu-iotests: COW with many AIO requests on the same cluster
This one is a bit more interesting. The COW operation isn't performedcompletely synchronously, and therefore dependencies must be handledcorrectly when multiple requests write to the same unallocated cluster....