Re: Question regarding switch_to on x86

[Brian Gerst]

read lkml wrote:
> Hi,
>
> Could anyone please explain to me (or point me to some
> documentation) the need for the 3rd argument in the
> switch_to macro on x86? Why is it 
> switch_to(prev, next, last)? how are prev and last
> different? 
>
> Thanks

last is actually a return value.  Since switch_to() switches stacks, 
last must be passed through in a register.

--
				Brian Gerst
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