linux-kernel - Re: [PATCH 1/2] x86,mpx: make mpx depend on x86-64 to free up VMA flag

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Message-ID: <543e85d4-d4a1-41a7-cfcf-6a88c0124998@intel.com>
Date:   Fri, 4 Aug 2017 12:25:15 -0700
From:   Dave Hansen <dave.hansen@...el.com>
To:     riel@...hat.com, linux-kernel@...r.kernel.org
Cc:     linux-mm@...ck.org, fweimer@...hat.com, colm@...costs.net,
        akpm@...ux-foundation.org, rppt@...ux.vnet.ibm.com,
        keescook@...omium.org, luto@...capital.net, wad@...omium.org,
        mingo@...nel.org
Subject: Re: [PATCH 1/2] x86,mpx: make mpx depend on x86-64 to free up VMA
 flag

On 08/04/2017 12:07 PM, riel@...hat.com wrote:
> MPX only seems to be available on 64 bit CPUs, starting with Skylake
> and Goldmont. Move VM_MPX into the 64 bit only portion of vma->vm_flags,
> in order to free up a VMA flag.

Makes me a little sad.  But, seems worth it.

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