perf diff: Move hists__match to the hists lib
Its not 'diff' specific and will be useful for other use cases, like
bucketizing multiple events in a single session.
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-o35urjgxfxxm70aw1wa81s4w@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 8a9db38..e99fb3b 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -334,39 +334,6 @@
self->entries = tmp;
}
-static struct hist_entry *hists__find_entry(struct hists *self,
- struct hist_entry *he)
-{
- struct rb_node *n = self->entries.rb_node;
-
- while (n) {
- struct hist_entry *iter = rb_entry(n, struct hist_entry, rb_node);
- int64_t cmp = hist_entry__cmp(he, iter);
-
- if (cmp < 0)
- n = n->rb_left;
- else if (cmp > 0)
- n = n->rb_right;
- else
- return iter;
- }
-
- return NULL;
-}
-
-static void hists__match(struct hists *older, struct hists *newer)
-{
- struct rb_node *nd;
-
- for (nd = rb_first(&newer->entries); nd; nd = rb_next(nd)) {
- struct hist_entry *pos = rb_entry(nd, struct hist_entry, rb_node),
- *pair = hists__find_entry(older, pos);
-
- if (pair)
- hist__entry_add_pair(pos, pair);
- }
-}
-
static struct perf_evsel *evsel_match(struct perf_evsel *evsel,
struct perf_evlist *evlist)
{
@@ -520,7 +487,7 @@
static void hists__process(struct hists *old, struct hists *new)
{
- hists__match(old, new);
+ hists__match(new, old);
if (show_baseline_only)
hists__baseline_only(new);