linux-kernel - Re: [PATCH] perf timechart: remove lock_depth from trace

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Date:	Mon, 25 Nov 2013 15:21:39 -0300
From:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
To:	Stanislav Fomichev <stfomichev@...dex-team.ru>
Cc:	Chia-I Wu <olvaffe@...il.com>, a.p.zijlstra@...llo.nl,
	paulus@...ba.org, mingo@...hat.com, linux-kernel@...r.kernel.org,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH] perf timechart: remove lock_depth from trace_entry

Em Tue, Oct 22, 2013 at 02:32:23PM +0400, Stanislav Fomichev escreveu:
> On Mon, Oct 07, 2013 at 02:48:34PM +0800, Chia-I Wu wrote:
> > struct trace_entry went out-of-sync with the kernel since
> > 
> >  commit b000c8065 "tracing: Remove the extra 4 bytes of padding in events"
> > 
> > causing "perf timechart" to be broken.
> > 
> > Signed-off-by: Chia-I Wu <olvaffe@...il.com>
> Reviewed-by: Stanislav Fomichev <stfomichev@...dex-team.ru>
> 
> For some reason nobody noticed this patch on lkml, so resending to the
> maintainers...
> This also makes sense to merge it into the stable line.

This makes the new tool stop processing old files, can you try the patch
attached instead?

Its only compile tested tho.

- Arnaldo
 
> > ---
> >  tools/perf/builtin-timechart.c | 1 -
> >  1 file changed, 1 deletion(-)
> > 
> > diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
> > index c2e0231..f9cbc18 100644
> > --- a/tools/perf/builtin-timechart.c
> > +++ b/tools/perf/builtin-timechart.c
> > @@ -303,7 +303,6 @@ struct trace_entry {
> >  	unsigned char		flags;
> >  	unsigned char		preempt_count;
> >  	int			pid;
> > -	int			lock_depth;
> >  };
> >  
> >  #ifdef SUPPORT_OLD_POWER_EVENTS
> > -- 
> > 1.8.3.1
> --
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View attachment "lock_depth_removal.patch" of type "text/plain" (4889 bytes)