Re: [PATCH] Remove process freezer from suspend to RAM pathway

Alan Stern
2007-07-07T16:17:06Z

On Sat, 7 Jul 2007, Benjamin Herrenschmidt wrote:

> > > And guess what ? It's what we do on powerbooks, and it works fine,
> > > without a freezer :-)

> If you remember, one of the things I've been advocating has always been
> that we should put on hold all plug activity (unplug might be alright as
> long as the user events are just delayed) when we start suspending. No
> new devices, no new bindings. "hub" type devices are respondible for
> bringing in the new stuff after resume.

Which is exactly my point. It _doesn't_ work fine without a freezer,
because the USB stack currently relies on the freezer to prevent plug
activity.

Alan Stern