linux-kernel - Re: [RFC][PATCH 4/4] perf/events: Use helper functions in event assignment to shrink macro size

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 13 Aug 2012 10:40:44 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [RFC][PATCH 4/4] perf/events: Use helper functions in event
 assignment to shrink macro size

On Mon, 2012-08-13 at 15:52 +0200, Peter Zijlstra wrote:

> > Looking at the history of perf_trace_buf_submit(), it use to be more
> > than one function call. But when you inlined
> > perf_swevent_put_recursion_context(), it became just a one2one mapping.
> 
> Right.

OK, this should go as a separate change.

> 
> > I'm assuming that we want to convert all calls to
> > perf_trace_buf_submit()s into perf_tp_event()?
> 
> Yeah.. I think you're referring to the {u,k}probes open-coded nonsense?
> Should we make those use these new helpers you created as well?

They may not need it. The helpers I created were for the macros that are
created by all TRACE_EVENT() instances. If the uprobes and kprobes only
have a single instance, then they probably don't need the helpers. But
they still call the perf_trace_buf_submit(), which can can probably be
cleaned up.

-- Steve


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/