From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Thu, 18 Jun 2009 09:40:28 +0000 (+0200)
Subject: perf_counter tools: Handle lost events
X-Git-Tag: v2.6.31-rc1~93^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9d91a6f7a489eb914c16b82d927f9d81d629c259;p=pandora-kernel.git

perf_counter tools: Handle lost events

Make use of the new ->data_tail mechanism to tell kernel-space
about user-space draining the data stream. Emit lost events
(and display them) if they happen.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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