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| author | Robert Richter <robert.richter@amd.com> | 2012-06-14 22:38:37 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-06-29 13:31:27 -0300 |
| commit | 9bc8f9fe2c6e3778202c76ef85ef291567c00cb8 (patch) | |
| tree | 26c483617ef9bbb10d352347df0d7fe1b80a0b20 /tools/perf/util | |
| parent | 287e74aa3db097469bdca401f33f00ef20dc710d (diff) | |
| download | linux-9bc8f9fe2c6e3778202c76ef85ef291567c00cb8.tar.gz | |
perf tools: Fix generation of pmu list
The internal pmu list was never used. With each perf_pmu__find() call the pmu structure was created new by parsing sysfs. Beside this it caused memory leaks. We now keep all pmus by adding them to the list. Also, pmu_lookup() should return pmus that do not expose the format specifier in sysfs. We need a valid internal pmu list in a later patch to iterate over all pmus that exist in the system. Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1339706321-8802-3-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
| -rw-r--r-- | tools/perf/util/pmu.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 74d0948ec368..67715a42cd6d 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -72,7 +72,7 @@ static int pmu_format(char *name, struct list_head *format) "%s/bus/event_source/devices/%s/format", sysfs, name); if (stat(path, &st) < 0) - return -1; + return 0; /* no error if format does not exist */ if (pmu_format_parse(path, format)) return -1; @@ -252,6 +252,7 @@ static struct perf_pmu *pmu_lookup(char *name) list_splice(&aliases, &pmu->aliases); pmu->name = strdup(name); pmu->type = type; + list_add_tail(&pmu->list, &pmus); return pmu; } |