Hi, On Dec 10, 2007 11:31 PM, Jonathan Corbet <[EMAIL PROTECTED]> wrote: > I'm just getting around to looking at this. One thing jumped out at me: > > > + if (bio->bi_throttle) { > > + struct request_queue *q = bio->bi_queue; > > + bio->bi_throttle = 0; /* or detect multiple endio and err? */ > > + atomic_add(bio->bi_throttle, &q->available); > > + wake_up(&q->throttle_wait); > > + } > > I'm feeling like I must be really dumb, but...how can that possibly > work? You're zeroing >bi_throttle before adding it back into > q->available, so the latter will never increase...
Heh, well, that's ok as long as bio->bi_vcnt is set to zero and I think we have some md raid drivers do just that... ;-) Pekka -- 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/