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

Benjamin Herrenschmidt
2007-07-09T09:14:45Z

On Mon, 2007-07-09 at 08:47 +0200, Oliver Neukum wrote:
> Am Sonntag, 8. Juli 2007 schrieb Benjamin Herrenschmidt:
> > > But I'm not sure it's a good idea in the long run. Think of a printer
> > > daemon, for example. It shouldn't have to experience unexpected I/O
> > > problems merely because someone has decided to put the system to sleep.
> >
> > Why not ? Printer is offline when machine is asleep... trying to print
>
> Not necessarily. The machine must survive going to sleep while you are
> printing. Any other error return than -ERESTARTSYS is not an option.
> We can't simply change the ABI.

Ugh ? Why returning an error from the printer driver to the userland
print server/daemon would prevent the machine from "surviving" ? I would
be happy with -EIO personally :-)

Ben.