perf evlist: Return the first evsel with an invalid filter in apply_filters()
authorArnaldo Carvalho de Melo <acme@redhat.com>
Tue, 24 Mar 2015 22:23:47 +0000 (19:23 -0300)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Thu, 26 Mar 2015 13:52:28 +0000 (10:52 -0300)
commit23d4aad48e31d3269af484dd2f9bd251278cd667
tree0bf256b09c904a39ed08aacf6e8f08068c3c6863
parente94eedab3ab8201fd41480171b2fabbf3c5b1ae0
perf evlist: Return the first evsel with an invalid filter in apply_filters()

Use of a bad filter currently generates the message:
 Error: failed to set filter with 22 (Invalid argument)

Add the event name to make it clear to which event the filter
failed to apply:
  Error: Failed to set filter "foo" on event sched:sg_lb_stats: 22: Invalid argument

To test it use something like:

 # perf record -e sched:sched_switch -e sched:*fork --filter parent_pid==1 -e sched:*wait* --filter bla usleep 1
  Error: failed to set filter "bla" on event sched:sched_stat_iowait with 22 (Invalid argument)
 #

Based-on-a-patch-by: David Ahern <dsahern@gmail.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-d7gq2fjvaecozp9o2i0siifu@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/builtin-record.c
tools/perf/builtin-stat.c
tools/perf/util/evlist.c
tools/perf/util/evlist.h