From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Wed, 5 May 2010 20:07:39 +0000 (+0200)
Subject: perf: Fix static strings treated like dynamic ones
X-Git-Tag: v2.6.34~32^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=de068ec048f807d4f62b7dda100c23a1365f086f;p=pandora-kernel.git

perf: Fix static strings treated like dynamic ones

The raw_field_ptr() helper, used to retrieve the address of a field
inside a trace event, treats every strings as if they were dynamic
ie: having a secondary level of indirection to retrieve their
contents.

FIELD_IS_STRING doesn't mean FIELD_IS_DYNAMIC, we only need to
compute the secondary dereference for the latter case.

This fixes perf sched segfaults, bad cmdline report and may be
some other bugs.

Reported-by: Jason Baron <jbaron@redhat.com>
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Tom Zanussi <tzanussi@gmail.com>
---

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