Re: smp_mb__after_spinlock requirement too strong?

Peter Zijlstra
2018-03-12T13:31:51Z

On Mon, Mar 12, 2018 at 05:13:03PM +0800, 焦晓冬 wrote:

> If the fixed comment could point out where this RCsc is used, it will be great.

The one that comes to mind first is RCU-sched, that relies on a context
switch implying a full smp_mb(). But I think there's more..