linux-kernel - Re: [patch V3 04/11] x86/mm/cpa: Allow range check for static protections

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Message-ID: <2408f945-dfb1-252a-1fa2-98d092a918a7@intel.com>
Date:   Fri, 21 Sep 2018 09:36:12 -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 04/11] x86/mm/cpa: Allow range check for static
 protections

On 09/17/2018 07:29 AM, Thomas Gleixner wrote:
> Checking static protections only page by page is slow especially for huge
> pages. To allow quick checks over a complete range, add the ability to do
> that.
> 
> Make the checks inclusive so the ranges can be directly used for debug output
> later.
> 
> No functional change.

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