Re: performance-improvement-of-serial-console-via-virtual.patch added to -mm tree

["Hironobu Ishii" <hishii@soft.fujitsu.com>]

Hi Russell,

> Additionally, once all architectures convert to initialising their
> serial ports via platform devices (which means include/asm-*/serial.h
> becomes essentially empty) and we eliminate serial8250_console_init(),
> the 8250 console code can start assuming that more of the uart_port
> structure will be initialised.
> 
> At that point, we can start to think about using FIFOs for the
> console.

Thank you for FIFO consideration.

me> Before initialization, does tx_loadsz left 0?
me> If so, we can easily solve the problem:

I confirmed this assumption is OK in current code,
because seiral8250_ports[] is static variable.

We will release revised patch later,
please apply our patch until your serial driver 
re-organization completes.

Thank you.
Hironobu Ishii