Your logic looks fine for me. Do we have already round_up_pow_of_two() function or
should we create it as something like:
unsinged long round_up_pow_of_two(unsigned long x)
{
unsigned long res = 1 << BITS_PER_LONG;
You'll get a zero here. Should be 1 << (BITS_PER_LONG - 1).
Good that so many people are watching when you even didn't write it yet :)))
Thanks!
Kirill
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