perf map: Move maj/min/ino/ino_generation to separate struct

And this patch highlights where these fields are being used: in the sort
order where it uses it to compare maps and classify samples taking into
account not just the DSO, but those DSO id fields.

I think these should be used to differentiate DSOs with the same name
but different 'struct dso_id' fields, i.e. these fields should move to
'struct dso' and then be used as part of the key when doing lookups for
DSOs, in addition to the DSO name.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-8v5isitqy0dup47nnwkpc80f@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 67e0f81416cb..4f50b1b2961f 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -162,10 +162,10 @@ struct map *map__new(struct machine *machine, u64 start, u64 len,
 		vdso = is_vdso_map(filename);
 		no_dso = is_no_dso_memory(filename);
 
-		map->maj = d_maj;
-		map->min = d_min;
-		map->ino = ino;
-		map->ino_generation = ino_gen;
+		map->dso_id.maj = d_maj;
+		map->dso_id.min = d_min;
+		map->dso_id.ino = ino;
+		map->dso_id.ino_generation = ino_gen;
 		map->prot = prot;
 		map->flags = flags;
 		nsi = nsinfo__get(thread->nsinfo);