> Then we don't know which disks have disappeared. Pity.
> If the number space is infinite then
> index = next_index++;
> gives a new number each time we need one.
Yes !! I agree. I am not worried about running out them.
I am more worried about names slipping. I atleast hope
to see device names not changing by just doing
But you see, the present sd_index_bits gives no such
guarantee. In sd_detach a bit is cleared, in sd_attach
the first free bit is given out. There is no memory.
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