linux-kernel - Re: [PATCH 4/5] perf tools: Support single perf.data file directory

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Date:   Mon, 21 Oct 2019 15:52:10 +0200
From:   Jiri Olsa <jolsa@...hat.com>
To:     Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
Cc:     Adrian Hunter <adrian.hunter@...el.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/5] perf tools: Support single perf.data file directory

On Mon, Oct 21, 2019 at 10:46:11AM -0300, Arnaldo Carvalho de Melo wrote:
> Em Mon, Oct 21, 2019 at 03:42:39PM +0300, Adrian Hunter escreveu:
> > On 7/10/19 3:06 PM, Adrian Hunter wrote:
> > > On 7/10/19 2:20 PM, Jiri Olsa wrote:
> > >> On Fri, Oct 04, 2019 at 11:31:20AM +0300, Adrian Hunter wrote:
> > >>
> > >> SNIP
> > >>
> > >>>  	u8 pad[8] = {0};
> > >>>  
> > >>> -	if (!perf_data__is_pipe(data) && !perf_data__is_dir(data)) {
> > >>> +	if (!perf_data__is_pipe(data) && perf_data__is_single_file(data)) {
> > >>>  		off_t file_offset;
> > >>>  		int fd = perf_data__fd(data);
> > >>>  		int err;
> > >>> diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
> > >>> index df173f0bf654..964ea101dba6 100644
> > >>> --- a/tools/perf/util/data.c
> > >>> +++ b/tools/perf/util/data.c
> > >>> @@ -76,6 +76,13 @@ int perf_data__open_dir(struct perf_data *data)
> > >>>  	DIR *dir;
> > >>>  	int nr = 0;
> > >>>  
> > >>> +	/*
> > >>> +	 * Directory containing a single regular perf data file which is already
> > >>> +	 * open, means there is nothing more to do here.
> > >>> +	 */
> > >>> +	if (perf_data__is_single_file(data))
> > >>> +		return 0;
> > >>> +
> > >>
> > >> cool, I like this approach much more than the previous flag
> > > 
> > > Yes it is much nicer.  Thanks for your direction on that.
> > > 
> > >>
> > >> any change you (if there's repost) or Arnaldo
> > >> could squeeze in indent change below?
> > > 
> > > Sent a patch, to be applied before these.
> > > 
> > 
> > That is:
> > 
> > "[PATCH] perf session: Fix indent in perf_session__new()"
> > 
> > Any comments on this patch set Arnaldo?
> 
> I'll take a look at it later, I think Jiri is ok with it already?

yes, it's just indent fix

jirka