Archipelago » qemu

qemu-iotests: Use zero-based offsets for IO patterns

The io_pattern style functions have the following loop:

for i in `seq 1 $count`; do
      echo ... $(( start + i * step )) ...
  done

Offsets are 1-based so start=1024, step=512, count=4 yields:
1536, 2048, 2560, 3072...