linux-kernel - RE: [PATCH] perf_counter: Fix a race on perf_counter

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Message-ID: <928CFBE8E7CB0040959E56B4EA41A77EC1BFF680@irsmsx504.ger.corp.intel.com>
Date:	Tue, 11 Aug 2009 07:33:57 +0100
From:	"Metzger, Markus T" <markus.t.metzger@...el.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"hpa@...or.com" <hpa@...or.com>,
	"markus.t.metzger@...il.com" <markus.t.metzger@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Paul Mackerras <paulus@...ba.org>
Subject: RE: [PATCH] perf_counter: Fix a race on perf_counter_ctx

>-----Original Message-----
>From: Ingo Molnar [mailto:mingo@...e.hu]
>Sent: Monday, August 10, 2009 3:46 PM
>To: Metzger, Markus T
>Cc: Peter Zijlstra; tglx@...utronix.de; hpa@...or.com; markus.t.metzger@...il.com; linux-
>kernel@...r.kernel.org; Paul Mackerras
>Subject: Re: [PATCH] perf_counter: Fix a race on perf_counter_ctx
>
>
>* Metzger, Markus T <markus.t.metzger@...el.com> wrote:
>
>> I've been using some old version of perf. When I try to build the
>> version for the latest -tip, I get the following build error:
>>
>> builtin-annotate.o: In function `print_summary':
>> /home/markus/linux/git-tip/tools/perf/builtin-annotate.c:1211: undefined reference to `rb_first'
>> /home/markus/linux/git-tip/tools/perf/builtin-annotate.c:1223: undefined reference to `rb_next'
>> builtin-annotate.o: In function `insert_source_line':
>
>Weird. How do you build perf? Do you do:
>
>  cd tools/perf/
>  make
>
>? does your build directory have the ../../lib/rbtree.c file?

Yes and yes.

regards,
markus.
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