Re: [RFC-PATCH 1/2] mm: Add __GFP_NO_LOCKS flag

Paul E. McKenney
2020-08-14T18:02:32Z

On Fri, Aug 14, 2020 at 07:49:24PM +0200, Peter Zijlstra wrote:
> On Fri, Aug 14, 2020 at 09:11:06AM -0700, Paul E. McKenney wrote:
> > Just to make sure we are talking about the same thing, please see below
> > for an untested patch that illustrates how I was interpreting your words.
> > Was this what you had in mind?
>
> No, definitely not.
>
> Also, since we used to be able to use call_rcu() _everywhere_, including
> under zone->lock, how's that working with you calling the
> page-allocating from it?

Indeed, that is exactly the problem we are trying to solve.

Thanx, Paul