On Tue, Jan 17, 2012 at 08:10:36PM +0000, Alan Cox wrote: > On Tue, 17 Jan 2012 10:56:03 -0800 > Simon Glass <sjg@xxxxxxxxxxxx> wrote: > > > Since serial_core now does not make serial ports wake-up capable by > > default, add a parameter to support this feature in the 8250 UART. > > This is the only UART where I think this feature is useful. > > NAK > > Things should just work for users. Magic parameters is not an > improvement. If its a performance problem someone needs to fix the rcu > sync overhead or stop using rcu on that path. I must say that I lack context here, even after looking at the patch, but the synchronize_rcu_expedited() primitives can be used if the latency of synchronize_rcu() is too large. Thanx, Paul -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
