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Subject[tip:perf/core] perf hists: Remove hist_entry->used, not used anymore
Commit-ID:  4c47f4fcd60a2f4153d6fe0c31650fbec112a1bd
Gitweb: http://git.kernel.org/tip/4c47f4fcd60a2f4153d6fe0c31650fbec112a1bd
Author: Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Tue, 17 Mar 2015 17:18:58 -0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 17 Mar 2015 17:18:58 -0300

perf hists: Remove hist_entry->used, not used anymore

Since hist_entry__delete() nowadays doesn't actually frees anything that
may be in use by the annotation code.

Eventually we will solve this for good by reference counting struct
symbol.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-uldtgljymtrkns0knpiso5op@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/ui/browsers/hists.c | 5 -----
tools/perf/util/hist.c | 8 +-------
tools/perf/util/sort.h | 1 -
3 files changed, 1 insertion(+), 13 deletions(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index ebd9d3a..c37e70a 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1731,12 +1731,7 @@ do_annotate:
if (!notes->src)
continue;

- /*
- * Don't let this be freed, say, by hists__decay_entry.
- */
- he->used = true;
err = hist_entry__tui_annotate(he, evsel, hbt);
- he->used = false;
/*
* offer option to annotate the other branch source or target
* (if they exists) when returning from annotate
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index d9a6d35..cc22b91 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -263,15 +263,9 @@ void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel)
while (next) {
n = rb_entry(next, struct hist_entry, rb_node);
next = rb_next(&n->rb_node);
- /*
- * We may be annotating this, for instance, so keep it here in
- * case some it gets new samples, we'll eventually free it when
- * the user stops browsing and it agains gets fully decayed.
- */
if (((zap_user && n->level == '.') ||
(zap_kernel && n->level != '.') ||
- hists__decay_entry(hists, n)) &&
- !n->used) {
+ hists__decay_entry(hists, n))) {
hists__delete_entry(hists, n);
}
}
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index c03e4ff..9c01b83 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -102,7 +102,6 @@ struct hist_entry {

bool init_have_children;
char level;
- bool used;
u8 filtered;
char *srcline;
struct symbol *parent;

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