[tip:perf/core] perf list: Honour 'event_glob' whem printing selectable PMUs

[tip-bot for Arnaldo Carvalho de Melo <tipbot@zytor.com>]

Commit-ID:  fa52ceabc2a3e70431a82bca2bc547a15eaf19df
Gitweb:     http://git.kernel.org/tip/fa52ceabc2a3e70431a82bca2bc547a15eaf19df
Author:     Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Fri, 2 Oct 2015 15:28:16 -0300
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 2 Oct 2015 15:28:16 -0300

perf list: Honour 'event_glob' whem printing selectable PMUs

Some PMUs, like the 'intel_bts' one can be used as an event name, i.e.:

	$ perf record -e intel_bts:// usleep 1

Is a valid event name.

But the code printing such PMUs was not honouring the 'event_glob'
parameter, so the following line was always appearing:

  $ intel_bts//                                        [Kernel PMU event]

Fix it:

  $ [acme@felicio linux]$ perf list data

  List of pre-defined events (to be used in -e):

    uncore_imc/data_reads/                             [Kernel PMU event]
    uncore_imc/data_writes/                            [Kernel PMU event]

  $

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.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-ajb71858n7q7ao77b8pyy74w@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/pmu.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 41a356b..e4b173d 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1008,7 +1008,8 @@ void print_pmu_events(const char *event_glob, bool name_only)
 				goto out_enomem;
 			j++;
 		}
-		if (pmu->selectable) {
+		if (pmu->selectable &&
+		    (event_glob == NULL || strglobmatch(pmu->name, event_glob))) {
 			char *s;
 			if (asprintf(&s, "%s//", pmu->name) < 0)
 				goto out_enomem;