-------------------------<snip>------------------
I think everyone agrees that directory should have safe margin for
updates. However the discussion was about magic numbers like 44,45, or
46. Spare directory blocks are obvious, any of the numbers above not.
Despite of discussion noone explained why these numbers (or at least any
of them) are so magic. Hint: "fit in the track" is absolutely not
reasonable.
------------------------<unsnip>----------------
Why is "Fit in the track" unreasonable? I regard it as efficient use of
space.
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