On Wed, 2005-12-07 at 10:30 -0200, Luiz Fernando Capitulino wrote: > On Wed, 07 Dec 2005 13:27:13 +0100 > Arjan van de Ven <[email protected]> wrote: > > | > | > Isn't it right? Is the URB write so fast that switching to atomic_t > | > doesn't pay-off? > | > | an atomic_t access and a spinlock are basically the same price... so > | what's the payoff ? > > One lock less, where? spin_unlock in principle runs unlocked on x86 at least (except for ppro workarounds but those are/should be optional) - 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/
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