linux-kernel - Re: [PATCH 1/3] Add prctl commands PR_GET_TSC and PR_SET

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Date:	Sun, 13 Apr 2008 11:07:33 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Erik Bosman <ebn310@....vu.nl>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrea Arcangeli <andrea@...share.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] Add prctl commands PR_GET_TSC and PR_SET_TSC

Erik Bosman <ebn310@....vu.nl> writes:

>     This patch adds prctl commands that make it possible
>     to deny the execution of timestamp counters in userspace.
>     If this is not implemented on a specific architecture,
>     prctl will return -EINVAL.

You forgot to state why you need that? 

-Andi
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