Re: Page Fault Scalability patch V19 [4/4]: Drop use of page_table_lock in do_anonymous_page

[Andi Kleen]

> If atomic64_t is available on all 64 bit systems then its no problem.

Most of them have it already. parisc64/ppc64/sh64 are missing it,
but I assume they will catch up quickly.

-Andi
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