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From: Namhyung Kim <namhyung@kernel.org>
To: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	David Ahern <dsahern@gmail.com>, Jiri Olsa <jolsa@redhat.com>,
	Ingo Molnar <mingo@kernel.org>
Subject: Re: [PATCH perf/core 2/8] [BUGFIX] perf probe: Remove all probes matches given pattern at once
Date: Wed, 22 Apr 2015 16:33:43 +0900	[thread overview]
Message-ID: <20150422073343.GB21451@danjae.kornet> (raw)
In-Reply-To: <20150421114200.21617.19400.stgit@localhost.localdomain>

Hi Masami,

On Tue, Apr 21, 2015 at 08:42:00PM +0900, Masami Hiramatsu wrote:
> @@ -2760,14 +2762,17 @@ int del_perf_probe_events(struct strlist *dellist)
>  
>  		pr_debug("Group: %s, Event: %s\n", group, event);
>  
> +		ret = ret2 = -ENOENT;
>  		if (namelist)
>  			ret = del_trace_probe_event(kfd, buf, namelist);
>  
> -		if (unamelist && ret != 0)
> -			ret = del_trace_probe_event(ufd, buf, unamelist);
> +		if (unamelist)
> +			ret2 = del_trace_probe_event(ufd, buf, unamelist);
>  
> -		if (ret != 0)
> -			pr_info("Info: Event \"%s\" does not exist.\n", buf);
> +		/* Since we can remove probes which already removed, no error  */
> +		if (ret != 0 && ret2 != 0)
> +			pr_debug("Event \"%s\" does not exist.\n", buf);

I think it'd be better checking 'ret == -ENOENT && ret2 == -ENOENT'
here since del_trace_probe_event() can return other error codes.

Thanks,
Namhyung


> +		ret = 0;
>  
>  		free(str);
>  	}
> 

  reply	other threads:[~2015-04-22  7:34 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-21 11:41 [PATCH perf/core 0/8] perf-probe: Add filtering features Masami Hiramatsu
2015-04-21 11:41 ` [PATCH perf/core 1/8] [BUGFIX] perf probe: Make --funcs option exclusive Masami Hiramatsu
2015-04-21 11:42 ` [PATCH perf/core 2/8] [BUGFIX] perf probe: Remove all probes matches given pattern at once Masami Hiramatsu
2015-04-22  7:33   ` Namhyung Kim [this message]
2015-04-22 12:27     ` Masami Hiramatsu
2015-04-21 11:42 ` [PATCH perf/core 3/8] perf probe: Accept multiple filter options Masami Hiramatsu
2015-04-21 11:42 ` [PATCH perf/core 4/8] perf probe: Accept filter argument for --list Masami Hiramatsu
2015-04-21 11:42 ` [PATCH perf/core 5/8] perf probe: Allow to use filter on --del command Masami Hiramatsu
2015-04-22 13:56   ` Namhyung Kim
2015-04-23 13:10     ` Masami Hiramatsu
2015-04-21 11:42 ` [PATCH perf/core 6/8] perf probe: Accept filter argument for --funcs Masami Hiramatsu
2015-04-21 11:42 ` [PATCH perf/core 7/8] perf probe: Remove redundant cleanup of params.filter Masami Hiramatsu
2015-04-21 11:42 ` [PATCH perf/core 8/8] perf probe: Cleanup and consolidate command parsers Masami Hiramatsu

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