Re: [PATCH 00/10] jump label: introduce very_[un]likely + cleanups+ docs

[H. Peter Anvin]

On 02/22/2012 07:19 AM, Jason Baron wrote:
> 
> Right, we've discussed an 'unbiased' variant a bit before, but I don't 
> have a working imlementation for it yet. But I agree all current users are of
> the biased variety.
> 
> Also, decoupling the higher level interfaces, as Ingo has suggested - 
> 'very_unlikely' 'static_key', from the lower level 'jump label' naming makes
> sense. We might eventually add an 'unbias' variant. Another potential variant
> is in the 'bias' case is to move the mostly not taken branch even further out
> of line. Another possibilty is a 'switch'-like variant or multi-way jump.
> 

Okay, at least we need something to connect the readout with the key,
otherwise there is nothing that even hints that they are part of the
same fundamental subsystem...

I don't know if key_likely() and key_unlikely() would make sense...

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/