linux-kernel - Re: [PATCH] perf tools: Remove extra '/' character in events file path

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Message-ID: <535DB67A.2020108@huawei.com>
Date:	Mon, 28 Apr 2014 10:01:30 +0800
From:	xiakaixu <xiakaixu@...wei.com>
To:	Namhyung Kim <namhyung@...nel.org>
CC:	<linux-kernel@...r.kernel.org>, <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>, <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Huxinwei <huxinwei@...wei.com>, Genghui <hui.geng@...wei.com>,
	<jolsa@...hat.com>, <bp@...en8.de>, Jiri Olsa <jolsa@...hat.com>,
	Borislav Petkov <bp@...en8.de>, <peifeiyue@...wei.com>
Subject: Re: [PATCH] perf tools: Remove extra '/' character in events file
 path

于 2014/4/28 8:14, Namhyung Kim 写道:
> Hi xiakaixu,
> 
> (Adding Jiri and Boris to CC)

   OK.
   thanks,
> 
>> The array debugfs_known_mountpoints[] will cause extra '/'
>> character output.
>> Remove it.
>>
>> pre:
>> $ perf probe -l
>> /sys/kernel/debug//tracing/uprobe_events file does not exist -
>> please rebuild kernel with CONFIG_UPROBE_EVENTS.
>>
>> post:
>> $ perf probe -l
>> /sys/kernel/debug/tracing/uprobe_events file does not exist -
>> please rebuild kernel with CONFIG_UPROBE_EVENTS.
> 
> Looks like all of its callers already provide a '/' after the debugfs
> mountpoint, so
> 
>   Acked-by: Namhyung Kim <namhyung@...nel.org>
> 
> Thanks,
> Namhyung
> 
>> 	
>> Signed-off-by: Xia Kaixu <xiakaixu@...wei.com>
>> ---
>>  tools/lib/api/fs/debugfs.c | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/tools/lib/api/fs/debugfs.c b/tools/lib/api/fs/debugfs.c
>> index 7c43479..a74fba6 100644
>> --- a/tools/lib/api/fs/debugfs.c
>> +++ b/tools/lib/api/fs/debugfs.c
>> @@ -12,8 +12,8 @@
>>  char debugfs_mountpoint[PATH_MAX + 1] = "/sys/kernel/debug";
>>
>>  static const char * const debugfs_known_mountpoints[] = {
>> -	"/sys/kernel/debug/",
>> -	"/debug/",
>> +	"/sys/kernel/debug",
>> +	"/debug",
>>  	0,
>>  };
>>
>> -- 1.8.5.5
> .
> 


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