From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Sun, 22 Aug 2010 18:05:22 +0000 (+0200)
Subject: perf: Keep track of the max depth of a callchain
X-Git-Tag: v2.6.37-rc1~214^2~107
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d2009c5130b627d3efccae8ed36cd43450c8486d;p=pandora-kernel.git

perf: Keep track of the max depth of a callchain

In order to implement callchains collapsing, we need to keep
track of the maximum depth in a histogram tree of callchains.
This way we'll avoid allocating an arbitrary temporary buffer
size on callchain merge time.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Christoph Hellwig <hch@infradead.org>
---

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