Re: [PATCH v2] introduce atomic_pointer to fix a race condition in cancelable mcs spinlocks

Eric Dumazet
2014-06-02T23:54:00Z

On Mon, 2014-06-02 at 16:17 -0700, Paul E. McKenney wrote:

> But given that I already have preemption disabled and given that
> __srcu_read_lock() is not to be used by irq handlers, I should be able to
> use __this_cpu_inc(), correct? Just to avoid unnecessary irq disabling
> on non-x86 platforms...

Absolutely, __this_cpu_inc() is OK here.