linux-kernel - [tip:perfcounters/core] perf tools: Increase MAX_EVENT

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Date:	Thu, 17 Sep 2009 22:35:41 GMT
From:	tip-bot for Li Zefan <lizf@...fujitsu.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	fweisbec@...il.com, lizf@...fujitsu.com, peterz@...radead.org,
	tglx@...utronix.de, mingo@...e.hu
Subject: [tip:perfcounters/core] perf tools: Increase MAX_EVENT_LENGTH

Commit-ID:  270bbbe80d82fad8b698d0b407eb3ad67cc3492b
Gitweb:     http://git.kernel.org/tip/270bbbe80d82fad8b698d0b407eb3ad67cc3492b
Author:     Li Zefan <lizf@...fujitsu.com>
AuthorDate: Thu, 17 Sep 2009 16:34:51 +0800
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Fri, 18 Sep 2009 00:30:25 +0200

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>
Acked-by: Frederic Weisbecker <fweisbec@...il.com>
Cc: Peter Zijlstra <peterz@...radead.org>
LKML-Reference: <4AB1F4AB.7050205@...fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 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..910283c 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 512
 
 int valid_debugfs_mount(const char *debugfs)
 {
--
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