[patch 1/1] powerpc: add rcu_read_lock() to gup_fast() implementation

[Benjamin Herrenschmidt]

On Wed, 2010-04-28 at 13:29 +1000, Nick Piggin wrote:
> I think I nacked this because the rest of the powerpc code also
> assumes irq disables provide an rcu critical section. The plan was
> to convert powerpc pagetable code to use call_rcu_sched.

Right, on my todo list.

Cheers,
Ben.