On Fri, Sep 18, 2015 at 01:56:37PM +0200, Peter Zijlstra wrote:> +#ifndef atomic64_read_ctrl> +static inline int atomic64_read_ctrl(atomic64_t *v)> +{> + int val = atomic64_read(v);Duh long long...> + smp_read_barrier_depends(); /* Enforce control dependency. */> + return val;> +}> +#endif