Re: [PATCH 2/8] x86/mm: Handle unlazying membarrier core sync in the arch code

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To: Nicholas Piggin <npiggin@xxxxxxxxx>, x86@xxxxxxxxxx
Subject: Re: [PATCH 2/8] x86/mm: Handle unlazying membarrier core sync in the arch code
From: Andy Lutomirski <luto@xxxxxxxxxx>
Date: Wed, 16 Jun 2021 11:31:32 -0700
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, linux-mm@xxxxxxxxx, Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>
In-reply-to: <1623817261.p1mg6dm2ud.astroid@bobo.none>
References: <cover.1623813516.git.luto@kernel.org> <571b7e6b6a907e8a1ffc541c3f0005d347406fd0.1623813516.git.luto@kernel.org> <1623817261.p1mg6dm2ud.astroid@bobo.none>
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On 6/15/21 9:25 PM, Nicholas Piggin wrote:
> Excerpts from Andy Lutomirski's message of June 16, 2021 1:21 pm:

> I'm fine with the patch though, except I would leave the comment in the
> core sched code saying any arch specific sequence to deal with
> SYNC_CORE is required for that case.

Done.

References:
- [PATCH 0/8] membarrier cleanups
  - From: Andy Lutomirski
- [PATCH 2/8] x86/mm: Handle unlazying membarrier core sync in the arch code
  - From: Andy Lutomirski
- Re: [PATCH 2/8] x86/mm: Handle unlazying membarrier core sync in the arch code
  - From: Nicholas Piggin

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