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Date: Fri, 14 Aug 2020 19:49:24 +0200 From: Peter Zijlstra <peterz@...radead.org> To: "Paul E. McKenney" <paulmck@...nel.org> Cc: Thomas Gleixner <tglx@...utronix.de>, Michal Hocko <mhocko@...e.com>, Uladzislau Rezki <urezki@...il.com>, LKML <linux-kernel@...r.kernel.org>, RCU <rcu@...r.kernel.org>, linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>, Vlastimil Babka <vbabka@...e.cz>, Matthew Wilcox <willy@...radead.org>, "Theodore Y . Ts'o" <tytso@....edu>, Joel Fernandes <joel@...lfernandes.org>, Sebastian Andrzej Siewior <bigeasy@...utronix.de>, Oleksiy Avramchenko <oleksiy.avramchenko@...ymobile.com> Subject: Re: [RFC-PATCH 1/2] mm: Add __GFP_NO_LOCKS flag 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?
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