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    SubjectRe: [RFC PATCH] perf_core: provide a kernel-internal interface to get to performance counters
    On Fri, Feb 05, 2010 at 10:24:30PM -0800, Arjan van de Ven wrote:
    > On Fri, 5 Feb 2010 10:47:48 -0500
    > Christoph Hellwig <hch@infradead.org> wrote:
    >
    > > On Fri, Sep 25, 2009 at 12:25:56PM +0200, Arjan van de Ven wrote:
    > > > >From 5db5cd76f3c16c9f6093f54d1ccfb97d04b9a1ca Mon Sep 17 00:00:00
    > > > >2001
    > > > From: Arjan van de Ven <arjan@linux.intel.com>
    > > > Date: Fri, 25 Sep 2009 12:20:57 +0200
    > > > Subject: [PATCH] perf_core: provide a kernel-internal interface to
    > > > get to performance counters
    > >
    > > So this patch got accepted into mainline a while ago, without a user
    > > ever beeing presented, nevermind actually included in mainline. Time
    > > to revert providing these useless exports and dead code?
    > >
    >
    >
    > Frederic had a user near mainline.
    >
    > I have one but it's .35 material at this point...
    >
    > if you want to insist to bounce the patch out now and back in
    > for .35... I don't care but Frederic might.


    We can't.
    It has a user merged upstream: the hw-breakpoint subsystem.



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