linux-kernel - Re: [REQ]: 'perf probe --del *:*' should remove both uprobes and kprobes

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Date:	Tue, 31 Mar 2015 17:33:43 +0900
From:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
CC:	Jiri Olsa <jolsa@...nel.org>, David Ahern <dsahern@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [REQ]: 'perf probe --del *:*' should remove both uprobes and
 kprobes

(2015/03/31 5:12), Arnaldo Carvalho de Melo wrote:
> How it is now:
> 
> [root@...andy acme]# perf probe --del *:*
> Removed event: probe:icmp_rcv
> [root@...andy acme]# perf probe --del *:*
> Removed event: probe_ex:main
> [root@...andy acme]# perf probe --del *:*
> Info: Event "*:*" does not exist.
>   Error: Failed to delete events.
> [root@...andy
> 
> I.e. it'll first remove all kprobes, then bail out, next time we ask for
> everything to be deleted, there are no kprobes, so it will try the
> uprobes, removing it all, I think it should not be a two step process
> :-)

Yes, this should clear all events if user gives "*:*".

Thank you for reporting! :)

> 
> - Arnaldo
> 


-- 
Masami HIRAMATSU
Software Platform Research Dept. Linux Technology Research Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: masami.hiramatsu.pt@...achi.com


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