linux-kernel - Re: [PATCH v10 05/12] task_isolation: support CONFIG_TASK_ISOLATION

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Date:	Thu, 3 Mar 2016 21:04:46 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Chris Metcalf <cmetcalf@...lanox.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Gilad Ben Yossef <giladb@...hip.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Rik van Riel <riel@...hat.com>, Tejun Heo <tj@...nel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Christoph Lameter <cl@...ux.com>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Andy Lutomirski <luto@...capital.net>,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v10 05/12] task_isolation: support
 CONFIG_TASK_ISOLATION_ALL

> The same arguments would seem to apply to TASK_ISOLATION_ALL;
> note that applications don't actually go into task isolation mode
> without issuing the appropriate prctl(), so it shouldn't be too

That's a fair point. If it's entirely opt-in it's probably ok.

-Andi