Messages in this thread | | | Date | Tue, 04 Dec 2001 13:27:52 -0800 | From | george anzinger <> | Subject | Re: [PATCH] improve spinlock debugging |
| |
Nigel Gamble wrote: > > On Tue, 4 Dec 2001, george anzinger wrote: > > For example, preemption currently counts > > up on spin_lock and disable irq, counting the spin_lockirq twice. In > > That's not correct: we don't count it twice because we don't count > local_irq_disable etc., only the spin locks. Because... > > > (Oh, and since the irq > > inhibits preemption all by itself, we don't need to count it either.) > > ...so we don't.
Right, but we do count spin_lockirq (just once). See other email, this time.
-- George george@mvista.com High-res-timers: http://sourceforge.net/projects/high-res-timers/ Real time sched: http://sourceforge.net/projects/rtsched/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |