[PATCH 2/6] perf maps: Set the kmaps for newly created/added kernel maps

Arnaldo Carvalho de Melo
2025-02-28T21:17:49Z

From: Arnaldo Carvalho de Melo <acme@redhat.com>

When using __maps__insert_sorted() the map kmaps field needs to be
initialized, as we need kernel maps to work with map__kmap().

Fix it by using the newly introduced map__set_kmap() method.

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/lkml/Z74V0hZXrTLM6VIJ@x1
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/maps.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/tools/perf/util/maps.c b/tools/perf/util/maps.c
index 51b507233269d8b4..8c5f5d79cd24a6bc 100644
--- a/tools/perf/util/maps.c
+++ b/tools/perf/util/maps.c
@@ -798,6 +798,9 @@ static int __maps__insert_sorted(struct maps *maps, unsigned int first_after_ind
}
RC_CHK_ACCESS(maps)->nr_maps = nr_maps + to_add;
maps__set_maps_by_name_sorted(maps, false);
+ map__set_kmap_maps(new1, maps);
+ map__set_kmap_maps(new2, maps);
+
check_invariants(maps);
return 0;
}
--
2.48.1