From: Arjan van de Ven <arjan@infradead.org>
To: Andi Kleen <ak@suse.de>
Cc: Milena Milenkovic <mmilenko@us.ibm.com>,
linux-kernel@vger.kernel.org, davej@codemonkey.org.uk,
hpa@zytor.com
Subject: Re: [2.6 PATCH] Exporting mmu_cr4_features again for i386 & x86_64
Date: Thu, 29 Jun 2006 13:04:16 +0200 [thread overview]
Message-ID: <1151579056.3122.25.camel@laptopd505.fenrus.org> (raw)
In-Reply-To: <200606291255.36206.ak@suse.de>
> > However, this variable is needed if a loadable kernel module wants to
> > enable
> > access to performance counters from user space.
>
> Ok I guess it's a reasonable request (although we will likely
> eventually add a standard API for this and then it might
> be removed again)
I kind of disagree that being a reasonable request; there are several
tools (perfmon/oprofile) that do this already without the export, and if
you want another one, adding a very simple API to do just this to the
kernel should not at all be a big deal, just add that to the patch when
submitting the module for inclusion....
next prev parent reply other threads:[~2006-06-29 11:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <OF692619AF.8A926C55-ON8725719B.007C1C06-8625719B.007E27C7@us.ibm.com>
2006-06-29 10:55 ` Andi Kleen
2006-06-29 11:04 ` Arjan van de Ven [this message]
2006-06-29 11:08 ` Andrew Morton
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