* Mathieu Desnoyers <[EMAIL PROTECTED]> wrote:
> Ingo, a comment in slub.c explains it :
>
> /*
> * The SLUB_FASTPATH path is provisional and is currently disabled if the
> * kernel is compiled with preemption or if the arch does not support
> * fast cmpxchg operations. There are a couple of coming changes that will
> * simplify matters and allow preemption. Ultimately we may end up making
> * SLUB_FASTPATH the default.
well the feature is not complete and there are no reasons given _why_
it's not complete ... and even if there's a reason it should have been
deferred to the next merge window. We still have 10 year old "this is a
temporary hack" comments in the kernel ;-)
"hardware does not support it" is a valid argument, "kernel developer
had no time to implement it properly" is not ;-)
Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
