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Date: Sat, 15 Aug 2020 10:27:54 +0200 From: Peter Zijlstra <peterz@...radead.org> To: Thomas Gleixner <tglx@...utronix.de> Cc: paulmck@...nel.org, 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 Sat, Aug 15, 2020 at 01:14:53AM +0200, Thomas Gleixner wrote: > > As a matter of fact I assume^Wdeclare that removing struct rcu_head which > provides a fallback is not an option at all. I know that you want to, > but it wont work ever. Dream on, but as we agreed on recently there is > this thing called reality which ruins everything. It never was going to work, freeing memory can never hard rely on the success of allocating memory.
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