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| author | Ian Rogers <irogers@google.com> | 2023-06-22 22:45:18 -0700 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2023-06-23 21:44:48 -0700 |
| commit | ce5b293405fda0f80c803b6c838f51ec7f618f90 (patch) | |
| tree | f1409d2917e76f5a9db4ac832e95e862b009c29f /tools/perf | |
| parent | ae7eb5baad3fd5f9ff69a3721fdaa0324731cf8d (diff) | |
| download | linux-ce5b293405fda0f80c803b6c838f51ec7f618f90.tar.gz linux-ce5b293405fda0f80c803b6c838f51ec7f618f90.tar.bz2 linux-ce5b293405fda0f80c803b6c838f51ec7f618f90.zip | |
perf dso: Sort symbols under lock
Determine if symbols are sorted, set the sorted flag and sort under
the dso lock. Done in the interest of thread safety.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Jason Wang <wangborong@cdjrlc.com>
Cc: Changbin Du <changbin.du@huawei.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/20230623054520.4118442-2-irogers@google.com
[ handle the similar code in util/probe-event.c ]
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/map.c | 3 | ||||
| -rw-r--r-- | tools/perf/util/probe-event.c | 3 | ||||
| -rw-r--r-- | tools/perf/util/symbol.c | 8 |
3 files changed, 8 insertions, 6 deletions
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index f30d34903aa4..a45708289cc6 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -398,8 +398,7 @@ struct symbol *map__find_symbol_by_name(struct map *map, const char *name) return NULL; dso = map__dso(map); - if (!dso__sorted_by_name(dso)) - dso__sort_by_name(dso); + dso__sort_by_name(dso); return dso__find_symbol_by_name(dso, name); } diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index 6e2110d605fb..e477525f3a6b 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -3767,8 +3767,7 @@ int show_available_funcs(const char *target, struct nsinfo *nsi, goto end; } dso = map__dso(map); - if (!dso__sorted_by_name(dso)) - dso__sort_by_name(dso); + dso__sort_by_name(dso); /* Show all (filtered) symbols */ setup_pager(); diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index d275d3bef7d5..bb02047e1c59 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -613,8 +613,12 @@ struct symbol *dso__find_symbol_by_name(struct dso *dso, const char *name) void dso__sort_by_name(struct dso *dso) { - dso__set_sorted_by_name(dso); - return symbols__sort_by_name(&dso->symbol_names, &dso->symbols); + mutex_lock(&dso->lock); + if (!dso__sorted_by_name(dso)) { + symbols__sort_by_name(&dso->symbol_names, &dso->symbols); + dso__set_sorted_by_name(dso); + } + mutex_unlock(&dso->lock); } /* |