Messages in this thread | | | Date | Fri, 20 Mar 2009 08:38:46 -0700 | From | Jeremy Fitzhardinge <> | Subject | Re: Question about x86/mm/gup.c's use of disabled interrupts |
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Paul E. McKenney wrote: >> Ah, interesting. So disabling interrupts prevents the RCU free from >> happening, and non-atomic pte fetching is a non-issue. So it doesn't >> address the PAE side of the problem. >> > > This would be rcu_sched, correct? >
I guess? Whatever it is that ends up calling all the rcu callbacks after the idle. A cpu with disabled interrupts can't go through idle, right? Or is there an explicit way to hold off rcu?
J
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