Re: [PATCH] x86: Add optimized popcnt variants

[H. Peter Anvin]

On 02/19/2010 08:45 AM, Borislav Petkov wrote:
>>
>> You're still not inlining these.  They should be: there is absolutely no
>> reason for code size to not inline them anymore.
> 
> Isn't better to have only those 4 locations for apply_alternatives to
> patch wrt to popcnt instead of sprinkling alternatives sections around
> the kernel in every callsite of hweight and its users? Or is the aim to
> optimize even that "call __arch_hweightXX" away?
> 

That's the idea, yes.  We use inline alternatives in quite a few other
places.

	-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/