diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-10-13 08:01:33 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-10-13 08:01:33 -0300 |
| commit | df71d95f86ec7310722f96b6902699f3fe30b439 (patch) | |
| tree | 39bb03df54fc25cb8032a65f8386585813f50a57 /tools/perf/util/hist.c | |
| parent | 900e14a8f5a49e987790b93c7906989b22075f1b (diff) | |
| download | blackbird-op-linux-df71d95f86ec7310722f96b6902699f3fe30b439.tar.gz blackbird-op-linux-df71d95f86ec7310722f96b6902699f3fe30b439.zip | |
perf hists: Don't free decayed entries if in the annotation browser
Just let it there till the user exits the annotation browser.
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
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-nmaxuzreqhm5k10t2co5sk9a@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/hist.c')
| -rw-r--r-- | tools/perf/util/hist.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index 50c8fece1681..9b9d12bbdc1d 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -100,6 +100,8 @@ static void hist_entry__decay(struct hist_entry *he) static bool hists__decay_entry(struct hists *hists, struct hist_entry *he) { + if (he->period == 0) + return true; hists->stats.total_period -= he->period; hist_entry__decay(he); hists->stats.total_period += he->period; @@ -114,8 +116,12 @@ void hists__decay_entries(struct hists *hists) while (next) { n = rb_entry(next, struct hist_entry, rb_node); next = rb_next(&n->rb_node); - - if (hists__decay_entry(hists, n)) { + /* + * 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 (hists__decay_entry(hists, n) && !n->used) { rb_erase(&n->rb_node, &hists->entries); if (sort__need_collapse) |
