Re: [PATCH] x86: Extend test_and_set_bit() test_and_clean_bit() to64 bits in X86_64

[H. Peter Anvin]

Andi Kleen wrote:
>>>
>> The right way to do it is to pass the proper type of register.
> 
> For the input index register you don't actually need 64bit and for the
> value it's typically memory anyways.
> 

If you have a 64-bit operation you have a 64-bit index register.  And
you need a 64-bit index for it to handle over 2^31 (since it is signed.)

	-hpa

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

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