On Tue, 25 Mar 2014 18:55:01 +0100 Jan Kara <j...@suse.cz> wrote: > Necessity for offloading of printing was observed only for large > systems. So add a config option (disabled by default) which removes most > of the overhead added by this functionality.
If its an option it'll not get used. It ought to be automatic. I still think the mindset of this patch set is wrong. Only the device driver really knows what is good or bad. A large x86 connected to a network fake 16x50 serial port for example typically has a giant FIFO so 'bad' becomes 32K not 1000. A USB serial port already does async queueing so the value is 0. It also ignores priority so you might queue and loose an oops as a box goes down in preference to reporting debugging crap. All the afflicted consoles are serial, all go via the uart layer as far as I can see. The uart layer has a queue mechanism that could be used Alan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
