linux-kernel - [PATCH 2/2] perf tools: Increase MAX_EVENT

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Message-ID: <4AB1F4AB.7050205@cn.fujitsu.com>
Date:	Thu, 17 Sep 2009 16:34:51 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Frederic Weisbecker <fweisbec@...il.com>,
	Peter Zijlstra <peterz@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/2] perf tools: Increase MAX_EVENT_LENGTH

The name length of some trace events is longer than 30, like
sys_enter_sched_get_priority_max and ext4_mb_discard_preallocations.

Passing those events to perf-record will fail, try:

  # ./perf record -f -e syscalls:sys_enter_sched_get_priority_max -F 1 -a

Signed-off-by: Li Zefan <lizf@...fujitsu.com>
---
 tools/perf/util/parse-events.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 034245e..c9ef944 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -145,7 +145,7 @@ static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir)
 	   (strcmp(evt_dirent.d_name, "..")) &&				       \
 	   (!tp_event_has_id(&sys_dirent, &evt_dirent)))
 
-#define MAX_EVENT_LENGTH 30
+#define MAX_EVENT_LENGTH 40
 
 int valid_debugfs_mount(const char *debugfs)
 {
-- 
1.6.3

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