linux-kernel - Re: [PATCH] perf: Change and clean up sys_perf_event

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Date:	Sat, 20 Nov 2010 15:13:34 -0200
From:	Arnaldo Carvalho de Melo <acme@...radead.org>
To:	Corey Ashford <cjashfor@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu,
	a.p.zijlstra@...llo.nl, fweisbec@...il.com, michaele@....ibm.com,
	ianmunsi@....ibm.com
Subject: Re: [PATCH] perf: Change and clean up sys_perf_event_open error
 handling

Em Fri, Nov 19, 2010 at 05:37:24PM -0800, Corey Ashford escreveu:
> This patch makes several changes to "perf stat":
> 
> - "perf stat" will no longer go ahead and run the application when one or
> more of the specified events could not be opened.
> - Use error() and die() instead of pr_err() so that the output is more
> consistent with "perf top" and "perf record".
> - Handle permission errors in a more robust way, and in a similar way to
> "perf record" and "perf top".
> 
> In addition, the sys_perf_event_open() error handling of "perf top" and
> "perf record" is made more consistent and adds the following phrase when an
> event doesn't open (with something ther than an access or permission
> error):

Thanks, applied.

Ingo, this one is in my perf/core branch, in addition to the 3 patches I
posted yesterday.

- Arnaldo
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