linux-kernel - Re: [PATCH 16/16] perf, persistent: Allow multiple users for an event

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Message-ID: <20130604082042.GB23640@pd.tnic>
Date:	Tue, 4 Jun 2013 10:20:42 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	Robert Richter <rric@...nel.org>, Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	linux-kernel@...r.kernel.org,
	Robert Richter <robert.richter@...xeda.com>
Subject: Re: [PATCH 16/16] perf, persistent: Allow multiple users for an event

On Mon, Jun 03, 2013 at 03:49:25PM +0200, Jiri Olsa wrote:
> maybe check for valid cpu, since perf_get_persistent_event_fd is
> called directly from syscall allowing anything in cpu

That should be fine - we're traversing a per-cpu list of events there.

> (unrelated to this patch, but I couldn't find the original
> patch that adds perf_get_persistent_event_fd)

Try this:

http://git.kernel.org/cgit/linux/kernel/git/bp/bp.git/log/?h=persistent5.1

:-)

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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