Messages in this thread | | | Subject | Re: [PATCH 01/13] powerpc: Add rcu_read_lock() to gup_fast() implementation | From | Benjamin Herrenschmidt <> | Date | Fri, 16 Apr 2010 16:51:34 +1000 |
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On Mon, 2010-04-12 at 20:43 -0700, Paul E. McKenney wrote: > > So we might have to support the interrupt assumption, at least in > some > > form, with those guys... > > One way to make the interrupt assumption official is to use > synchronize_sched() rather than synchronize_rcu().
Ok, so I'm a bit of a RCU newbie as you may know :-) Right now, we use neither, we use call_rcu and we free the pages from the callback.
Ben.
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