On Fri, Sep 14, 2012 at 10:02 AM, Ming Lei <[email protected]> wrote: > Hi, > > I see the below comments on probe_irq_off: > > * BUGS: When used in a module (which arguably shouldn't happen) > * nothing prevents two IRQ probe callers from overlapping. The > * results of this are non-optimal. > */ > > But from the code of probe_irq_on and probe_irq_off, the mutex of > probing_active is held during the whole irq probe procedure, so > I don't understand why the above said that 'nothing prevents two > IRQ probe callers from overlapping", and why isn't the mutex of > probing_active enough to avoid the overlapping?
Thomas, I really appreciate that if you may clarify the question, :-) Thank, -- Ming Lei -- 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/
