Messages in this thread | | | Subject | Re: [PATCH 01/13] powerpc: Add rcu_read_lock() to gup_fast() implementation | From | Peter Zijlstra <> | Date | Wed, 14 Apr 2010 15:51:50 +0200 |
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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().
Well, call_rcu_sched() then, because the current usage is to use call_rcu() to free the page directories.
Paul, here is a call_rcu_sched() available in kernel/rcutree.c, but am I right in reading that code that that would not be available for preemptible RCU?
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