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Date:   Fri, 14 Aug 2020 11:02:24 -0700
From:   "Paul E. McKenney" <>
To:     Peter Zijlstra <>
Cc:     Thomas Gleixner <>,
        Michal Hocko <>,
        Uladzislau Rezki <>,
        LKML <>, RCU <>,, Andrew Morton <>,
        Vlastimil Babka <>,
        Matthew Wilcox <>,
        "Theodore Y . Ts'o" <>,
        Joel Fernandes <>,
        Sebastian Andrzej Siewior <>,
        Oleksiy Avramchenko <>
Subject: Re: [RFC-PATCH 1/2] mm: Add __GFP_NO_LOCKS flag

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

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