On Wed, 13 May 2009 20:20:56 -0700 Dmitry Torokhov [off-list ref] wrote:

On Tue, May 12, 2009 at 01:43:11PM -0700, akpm@linux-foundation.org wrote:

quoted

From: Shaohua Li <redacted>

serio shutdown is quite slow. It sometimes will take 0.2s for each port.

This depends on the other patch you sent to Greg,

synchronize-device-shutdown.patch, I assume.

I think these should
go together. But I am uncomfortable at the ide of blasting all ports on
i8042 simultaneously during shutdown. I'd be more comfortable if we were
taking serio_mutex in serio_cleanup() so only one port is being worked
on at a time.

OK, more thought is needed.  I dropped the patches.