On (01/13/17 12:03), Petr Mladek wrote: [..] > > why can't we? > > Because it would newer call cond_resched() in non-preemptive kernel > with CONFIG_PREEMPT_COUNT disabled. IMHO, we want to call it, > for example, when we scroll the entire screen from tty_operations. > > Or do I miss anything?
so... basically. it has never called cond_resched() there. right? why is this suddenly a problem now? -ss