On Sun, 2007-07-08 at 23:45 +0200, Rafael J. Wysocki wrote: > > Workqueues are kernel threads and the creator decides if they are going to > freeze. There are only two freezable worqueues in the entire tree right now. That and keventd workqueues... my point is you may well end up with something in a workqueue doing things that should have been blocked after the freeze. > Actaully, I'm perfectly fine with that, as long as each task blocked by the > driver due to suspend has PF_FROZEN (or something similar) set. Then, at > least theoretically, we'll be able to drop the freezer from the suspend code > path and move it after device_suspend() (or the hibernation-specific > equivalent) for hibernation (in that case there shouldn't be a problem with > any task waiting on I/O while the freezer is running ;-)). I don't see the need for a freezer for snapshot but that's a different issue. (stop_machine looks good enough to me). Ben _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
