linux-kernel - Re: [PATCH] wait_on_bit: add an acquire memory barrier

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Message-ID: <alpine.LRH.2.02.2208261424580.31963@file01.intranet.prod.int.rdu2.redhat.com>
Date:   Fri, 26 Aug 2022 14:25:29 -0400 (EDT)
From:   Mikulas Patocka <mpatocka@...hat.com>
To:     Will Deacon <will@...nel.org>
cc:     Ard Biesheuvel <ardb@...nel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Alan Stern <stern@...land.harvard.edu>,
        Andrea Parri <parri.andrea@...il.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Boqun Feng <boqun.feng@...il.com>,
        Nicholas Piggin <npiggin@...il.com>,
        David Howells <dhowells@...hat.com>,
        Jade Alglave <j.alglave@....ac.uk>,
        Luc Maranget <luc.maranget@...ia.fr>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Akira Yokosawa <akiyks@...il.com>,
        Daniel Lustig <dlustig@...dia.com>,
        Joel Fernandes <joel@...lfernandes.org>,
        linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org
Subject: Re: [PATCH] wait_on_bit: add an acquire memory barrier



On Fri, 26 Aug 2022, Will Deacon wrote:

> > So, the bad commit is aacd149b62382c63911060b8f64c1e3d89bd405a ("arm64: 
> > head: avoid relocating the kernel twice for KASLR").
> 
> Thanks. Any chance you could give this a go, please?
> 
> https://lore.kernel.org/r/20220826164800.2059148-1-ardb@kernel.org
> 
> Will

This doesn't help.

Mikulas