linux-kernel - Re: [PATCH] x86/mm: Add barriers and document switch

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Message-Id: <746D30E7-2F58-42DB-95D8-D50922CAEB7E@gmail.com>
Date:	Tue, 2 Aug 2016 15:27:06 -0700
From:	Nadav Amit <nadav.amit@...il.com>
To:	Rafael Aquini <aquini@...hat.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	"open list:MEMORY MANAGEMENT" <linux-mm@...ck.org>,
	X86 ML <x86@...nel.org>, Andy Lutomirski <luto@...nel.org>,
	Andrea Arcangeli <aarcange@...hat.com>, lwoodman@...hat.com,
	Rik van Riel <riel@...hat.com>, Mel Gorman <mgorman@...e.de>,
	akpm@...ux-foundation.org
Subject: Re: [PATCH] x86/mm: Add barriers and document switch_mm()-vs-flush synchronization follow-up

Rafael Aquini <aquini@...hat.com> wrote:

> While backporting 71b3c126e611 ("x86/mm: Add barriers and document switch_mm()-vs-flush synchronization")
> we stumbled across a possibly missing barrier at flush_tlb_page().

I too noticed it and submitted a similar patch that never got a response [1].

Regards,
Nadav

[1] https://lkml.org/lkml/2016/7/15/598