Re: [PATCH/RFC] sched: Remove SYSTEM_RUNNING checks from cond_resched*()

[Pavel Machek <pavel@ucw.cz>]

Hi!

> > That said, I do agree that maybe SYSTEM_RUNNING isn't the right check. 
> > Testing that the scheduler is initialized may be the more correct one. I 
> > think the SYSTEM_RUNNING one just comes from that being used for other 
> > debug issues.
> 
> Agreed.  system_state is too general.
> 
> If we specifically want to know whether it is safe to call schedule() then
> let's create a global boolean it_is_safe_to_call_schedule and test that,
> rather than testing something which indirectly and unreliably implies "it
> is safe to call schedule".  If that boolean already exists then no-brainer.

or maybe we could embed that check into schedule(), just returning
when scheduler is not ready?

And I always wondered... system_state is not protected by any kind of
lock and is not atomic_t... Does it all work by mistake?
								Pavel
-- 
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