Re: [Bug-ddrescue] bug on non-hardbs rounded start position or size!

[koll]

Well, read and write operations are working on intervals, and those
intervals have a lower and an upper endpoint.
If we simply rounded them both down to the nearest physical sector bounds,
everything would work perfectly:


Physical sectors:
[========][========][========][========][========][========][========]

Aligned (no change):

          [--requested--------)
          [--floor()-ed-------)
__________[========][========]________________________________________
                              |
                              [--requested--------)
                              [--floor()-ed-------)
______________________________[========][========]____________________

Not-aligned:

                [--requested------)
          [--floor()-ed-------)   |
__________[========][========]________________________________________
                                  |
                                  [--requested-------)
                              [--floor()-ed-------)
______________________________[========][========]____________________


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