linux-kernel - [tip:perfcounters/core] perf_counter: Fix ftrace events raw samples to be aligned to 8 bytes

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Message-ID: <tip-eba67b1fd06180d57b94bf97557d89873b0ce61e@git.kernel.org>
Date:	Sat, 8 Aug 2009 11:52:42 GMT
From:	tip-bot for Frederic Weisbecker <fweisbec@...il.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, paulus@...ba.org, acme@...hat.com,
	hpa@...or.com, mingo@...hat.com, efault@....de,
	peterz@...radead.org, fweisbec@...il.com, tglx@...utronix.de,
	mingo@...e.hu
Subject: [tip:perfcounters/core] perf_counter: Fix ftrace events raw samples to be aligned to 8 bytes

Commit-ID:  eba67b1fd06180d57b94bf97557d89873b0ce61e
Gitweb:     http://git.kernel.org/tip/eba67b1fd06180d57b94bf97557d89873b0ce61e
Author:     Frederic Weisbecker <fweisbec@...il.com>
AuthorDate: Sat, 8 Aug 2009 04:26:39 +0200
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Sat, 8 Aug 2009 13:49:23 +0200

perf_counter: Fix ftrace events raw samples to be aligned to 8 bytes

Align the ftrace events raw samples to 8 bytes so that they
meet the perf output event alignment requirements.

Reported-by: Peter Zijlstra <peterz@...radead.org>
Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Mike Galbraith <efault@....de>
Cc: Paul Mackerras <paulus@...ba.org>
LKML-Reference: <1249698400-5441-6-git-send-email-fweisbec@...il.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 include/trace/ftrace.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index bbf9042..7fb16d9 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -685,7 +685,7 @@ static void ftrace_profile_##call(proto)				\
 	pc = preempt_count();						\
 									\
 	__data_size = ftrace_get_offsets_##call(&__data_offsets, args); \
-	__entry_size = __data_size + sizeof(*entry);			\
+	__entry_size = ALIGN(__data_size + sizeof(*entry), sizeof(u64));\
 									\
 	do {								\
 		char raw_data[__entry_size];				\
--
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