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

Matthew Garrett
2007-07-03T21:20:25Z

On Tue, Jul 03, 2007 at 05:16:37PM -0400, Alan Stern wrote:
> On Tue, 3 Jul 2007, Matthew Garrett wrote:
> > But that's fine - "Are we undergoing a systemwide suspend" is an easy
> > question to ask. Freezing processes instead means that most of those
> > paths will never be tested.
>
> The question is easy to ask, but it's not so easy to figure out what
> you should do if the answer is Yes. Freezing processes instead means
> that those "untested" paths -- in many, many drivers -- won't have to
> exist at all.

We're used to the idea of applications blocking when a resource they're
using goes away - NFS has done it forever.

--
Matthew Garrett | mjg59@srcf.ucam.org