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From: Andi Kleen <ak@suse.de>
To: Christoph Hellwig <hch@infradead.org>
Cc: Mike Frysinger <vapier@gentoo.org>,
	"H. Peter Anvin" <hpa@zytor.com>,
	akpm@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: [patch] use __asm__ and __volatile__ in asm-x86_64/msr.h
Date: Mon, 18 Jun 2007 20:53:03 +0200	[thread overview]
Message-ID: <200706182053.04116.ak@suse.de> (raw)
In-Reply-To: <20070618183651.GB17112@infradead.org>


> asm-i386/msr.h should not be exported to userspace at all, it contains
> nothing but kernel-internal helpers.

Actually rdtsc and rdtscll and potentially rdpmc which is in there can be very 
useful in user space if you know what you're doing. Unfortunately a lot of its users don't,
but not having the include probably won't stop them either.

-Andi

  reply	other threads:[~2007-06-18 18:53 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-18  6:09 Mike Frysinger
2007-06-18  7:35 ` H. Peter Anvin
2007-06-18 14:02   ` Mike Frysinger
2007-06-18 18:36     ` Christoph Hellwig
2007-06-18 18:53       ` Andi Kleen [this message]
2007-06-20 15:46         ` H. Peter Anvin
2007-07-23  0:45           ` Mike Frysinger
2007-07-23  1:18             ` H. Peter Anvin

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