linux-kernel - Re: [PATCH 0/3] MIPS executable stack protection

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Message-ID: <20141004082307.GS10583@worktop.programming.kicks-ass.net>
Date:	Sat, 4 Oct 2014 10:23:07 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Leonid Yegoshin <Leonid.Yegoshin@...tec.com>
Cc:	linux-mips@...ux-mips.org, Zubair.Kakakhel@...tec.com,
	david.daney@...ium.com, paul.gortmaker@...driver.com,
	davidlohr@...com, macro@...ux-mips.org, chenhc@...ote.com,
	zajec5@...il.com, james.hogan@...tec.com, keescook@...omium.org,
	alex@...x-smith.me.uk, tglx@...utronix.de, blogic@...nwrt.org,
	jchandra@...adcom.com, paul.burton@...tec.com,
	qais.yousef@...tec.com, linux-kernel@...r.kernel.org,
	ralf@...ux-mips.org, markos.chandras@...tec.com,
	manuel.lauss@...il.com, akpm@...ux-foundation.org,
	lars.persson@...s.com
Subject: Re: [PATCH 0/3] MIPS executable stack protection

On Fri, Oct 03, 2014 at 08:17:14PM -0700, Leonid Yegoshin wrote:
> The following series implements an executable stack protection in MIPS.
> 
> It sets up a per-thread 'VDSO' page and appropriate TLB support.

So traditionally we've always avoided per-thread pages like that. What
makes it worth it on MIPS?
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