linux-kernel - Re: [PATCH v3 3/4] x86, mpx: add prctl commands PR_MPX_INIT, PR_MPX

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Message-ID: <52E5C000.1050506@zytor.com>
Date:	Sun, 26 Jan 2014 18:10:08 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Ren Qiaowei <qiaowei.ren@...el.com>, Ingo Molnar <mingo@...nel.org>
CC:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH v3 3/4] x86, mpx: add prctl commands PR_MPX_INIT, PR_MPX_RELEASE

On 01/26/2014 05:55 PM, Ren Qiaowei wrote:
>
> Peter, you mean we should remove these two call and do what they do in
> user-space, right?
> 

Unless we think there is a benefit to the kernel to have a on/off switch
for the #BR exception (if disabled, all #BR exceptions are signals,
regardless of source.)

There might be, would like other people's opinion.

	-hpa


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