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

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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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