Re: [RFC] Notifier for Externally Mapped Memory (EMM)

Peter Zijlstra
2008-03-04T22:42:58Z

On Tue, 2008-03-04 at 14:35 -0800, Christoph Lameter wrote:

> RCU means that the callbacks occur in an atomic context.

Not really, if it requires moving the VM locks to sleepable locks under
a .config option, I think its also fair to require PREEMPT_RCU.

OTOH, if you want to unconditionally move the VM locks to sleepable
locks you have a point.