Re: Why Semaphore Hardware-Dependent?
From: Paul Mackerras
Date: Mon Aug 28 2006 - 20:57:42 EST
Andi Kleen writes:
> > That's fair enough, but I would be opposed to
> > making semaphores bigger
>
> If the code was out of lined bigger wouldn't make much difference
I was referring to the data size not the code size.
> That would leave the fast path, but does it help that much there
> to have a more complicated implementation?
The implementation of the fast path is basically atomic_inc/dec.
Nothing more complicated.
Paul.
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