linux-kernel - Re: [PATCH 2/2] tracing/filter: remove empty subsystem and it's directory

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Date:	Fri, 10 Jul 2009 13:28:15 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Tom Zanussi <tzanussi@...il.com>
CC:	Xiao Guangrong <xiaoguangrong@...fujitsu.com>,
	Ingo Molnar <mingo@...e.hu>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] tracing/filter: remove empty subsystem and it's directory

Tom Zanussi wrote:
> On Thu, 2009-07-09 at 16:22 +0800, Xiao Guangrong wrote:
>> Remove empty subsystem and it's directory when module unload.
>>
>> Before patch:
>>  # rmmod trace-events-sample.ko
>>  # ls sample
>>  enable  filter
>>
>> After patch:
>>  # rmmod trace-events-sample.ko
>>  # ls sample
>>  ls: cannot access sample: No such file or directory
>>
>> Signed-off-by: Xiao Guangrong <xiaoguangrong@...fujitsu.com>
> 
> Looks like it does the trick.
> 
> Acked-by: Tom Zanussi <tzanussi@...il.com>
> 

It sure does. :)

Reviewed-by: Li Zefan <lizf@...fujitsu.com>

>> ---
>>  kernel/trace/trace.h        |    1 +
>>  kernel/trace/trace_events.c |   32 +++++++++++++++++++++++++++++++-
>>  2 files changed, 32 insertions(+), 1 deletions(-)
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