linux-kernel - Re: [patch V3 07/11] x86/mm/cpa: Avoid static protection checks on unmap

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Message-ID: <84574ba1-9c86-7fb6-c8e6-78fc9901b9ef@intel.com>
Date:   Fri, 21 Sep 2018 13:01:07 -0700
From:   Dave Hansen <dave.hansen@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     x86@...nel.org, Peter Zijlstra <peterz@...radead.org>,
        Bin Yang <bin.yang@...el.com>,
        Mark Gross <mark.gross@...el.com>
Subject: Re: [patch V3 07/11] x86/mm/cpa: Avoid static protection checks on
 unmap

On 09/17/2018 07:29 AM, Thomas Gleixner wrote:
> If the new pgprot has the PRESENT bit cleared, then conflicts vs. RW/NX are
> completely irrelevant.

Reviewed-by: Dave Hansen <dave.hansen@...el.com>