From: Stephen Hemminger <[EMAIL PROTECTED]> Date: Wed, 6 Dec 2006 16:58:35 -0800
> The more robust way would be to stop the queue (like flow control) > and return busy. You would need a timer though to handle the case > where some disk i/o stole all the mappings and then network device flow > blocked. You need some kind of fairness, yes, that's why I suggested a callback. When your DMA allocation fails, you get into the rear of the FIFO, when a free occurs, we callback starting from the head of the FIFO. You don't get removed from the FIFO unless at least one of your DMA allocation retries succeed. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
