Em Fri, Jul 06, 2012 at 11:17:41AM -0600, David Ahern escreveu:
> On 7/6/12 11:14 AM, Arnaldo Carvalho de Melo wrote:
> >Em Fri, Jul 06, 2012 at 10:02:18AM -0600, David Ahern escreveu:
> >>+++ b/tools/perf/builtin-lock.c
> >>@@ -877,6 +877,9 @@ static int read_events(void)
> >> if (!session)
> >> die("Initializing perf session failed\n");
> >>
> >>+ if (!perf_session__has_traces(session, "lock record"))
> >>+ exit(1);
> >>+
> >> return perf_session__process_events(session, &eops);
> >> }
> >
> >This is getting out of hand, first a die(), then an exit(1) and finally
> >this function returns a value, ouch.
> >
> >I'd rather use return to signal that something went wrong and as well
> >print some helpful warning to the user.
> >
> >Eventually we should fix all the other offenders, but lets try not to
> >add even more.
>
> Agree. But....
>
> >
> >Can you please resend with a pr_warning + return failure?
>
>
> This command needs some love. The rc is not checked and requires
> some rework. e.g., the report path:
>
> setup_pager();
> select_key();
> read_events(); <---- the function I changed
> sort_result();
> print_result();
>
> and the info path:
> setup_pager();
> read_events();
> dump_info();
>
> I figured for 3.5 at least not segfault; clean up for 3.6 or later.
Fair enough, so answering that other question, you want this for
perf/urgent.
Ok, queing it up for that branch,
- Arnaldo
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