Nick Piggin wrote on Tuesday, March 28, 2006 6:36 PM
> Hmm, not sure. Maybe a few new bitops with _lock / _unlock postfixes?
> For page lock and buffer lock we'd just need test_and_set_bit_lock,
> clear_bit_unlock, smp_mb__after_clear_bit_unlock.
>
> I don't know, _for_lock might be a better name. But it's getting long.
I think kernel needs all 4 variants:
clear_bit
clear_bit_lock
clear_bit_unlock
clear_bit_fence
And the variant need to permutated on all other bit ops ... I think it
would be indeed a better API and be more explicit about the ordering.
- Ken
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