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Message-ID: <20090917090255.GC5184@nowhere>
Date: Thu, 17 Sep 2009 11:02:57 +0200
From: Frederic Weisbecker <fweisbec@...il.com>
To: Li Zefan <lizf@...fujitsu.com>
Cc: Ingo Molnar <mingo@...e.hu>, Peter Zijlstra <peterz@...radead.org>,
LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] perf tools: Increase MAX_EVENT_LENGTH
On Thu, Sep 17, 2009 at 04:34:51PM +0800, Li Zefan wrote:
> 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
Ack too.
Thanks Li!
> int valid_debugfs_mount(const char *debugfs)
> {
> --
> 1.6.3
>
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