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>
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@ -100,6 +100,8 @@ static void hist_entry__decay(struct hist_entry *he)
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static bool hists__decay_entry(struct hists *hists, struct hist_entry *he)
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{
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if (he->period == 0)
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return true;
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hists->stats.total_period -= he->period;
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hist_entry__decay(he);
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hists->stats.total_period += he->period;
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@ -114,8 +116,12 @@ void hists__decay_entries(struct hists *hists)
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while (next) {
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n = rb_entry(next, struct hist_entry, rb_node);
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next = rb_next(&n->rb_node);
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if (hists__decay_entry(hists, n)) {
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/*
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* We may be annotating this, for instance, so keep it here in
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* case some it gets new samples, we'll eventually free it when
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* the user stops browsing and it agains gets fully decayed.
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*/
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if (hists__decay_entry(hists, n) && !n->used) {
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rb_erase(&n->rb_node, &hists->entries);
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if (sort__need_collapse)
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@ -64,6 +64,7 @@ struct hist_entry {
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bool init_have_children;
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char level;
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bool used;
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u8 filtered;
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struct symbol *parent;
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union {
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@ -976,9 +976,13 @@ do_annotate:
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he = hist_browser__selected_entry(browser);
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if (he == NULL)
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continue;
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/*
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* Don't let this be freed, say, by hists__decay_entry.
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*/
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he->used = true;
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hist_entry__tui_annotate(he, evsel->idx, nr_events,
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timer, arg, delay_secs);
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he->used = false;
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ui_browser__update_nr_entries(&browser->b, browser->hists->nr_entries);
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} else if (choice == browse_map)
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map__browse(browser->selection->map);
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