linux-kernel - Re: [PATCH tip 1/2] ring_buffer: remove unused flags parameter

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Date:	Fri, 6 Feb 2009 01:04:55 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Steven Rostedt <rostedt@...dmis.org>,
	Jens Axboe <jens.axboe@...cle.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH tip 1/2] ring_buffer: remove unused flags parameter


* Frederic Weisbecker <fweisbec@...il.com> wrote:

> > $ codiff /tmp/vmlinux.before /tmp/vmlinux.after
> > linux-2.6-tip/kernel/trace/trace.c:
> >   trace_vprintk              |  -14
> >   trace_graph_return         |  -14
> >   trace_graph_entry          |  -10
> >   trace_function             |   -8
> >   __ftrace_trace_stack       |   -8
> >   ftrace_trace_userstack     |   -8
> >   tracing_sched_switch_trace |   -8
> >   ftrace_trace_special       |  -12
> >   tracing_sched_wakeup_trace |   -8
> >  9 functions changed, 90 bytes removed, diff: -90
> > 
> > linux-2.6-tip/block/blktrace.c:
> >   __blk_add_trace |   -1
> >  1 function changed, 1 bytes removed, diff: -1
> > 
> > /tmp/vmlinux.after:
> >  10 functions changed, 91 bytes removed, diff: -91
> 
> 
> codiff... I didn't know this great tool! :-)

yes, very nice!

I've moved all the codiff output from the (discarded) diffstat
section into the commit log, they are very much worth preserving.

	Ingo
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