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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-10-14 09:31:53 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-10-14 12:48:14 -0300 |
| commit | 437cfe7a37df07e2201036fb0903cadae6b08e74 (patch) | |
| tree | 8967d5f800d2e5c918933e747b47c98ee85566a4 /tools/perf/util/ui/browser.c | |
| parent | 18eaf0b8e60a2fa54667b2192197970174f1c061 (diff) | |
| download | op-kernel-dev-437cfe7a37df07e2201036fb0903cadae6b08e74.zip op-kernel-dev-437cfe7a37df07e2201036fb0903cadae6b08e74.tar.gz | |
perf hists browser: Invalidate ui_browser->top after timer calls
With underlying dynamic data structures we need to invalidate pointers
to them after a timer, as that entry may have vanished (decayed in top,
for instance).
I forgot about browser_ui->top. Fix it by resetting it to null after a
timer. The seek operation from SEEK_SET will then set it to a valid
entry because it starts from rb_first(&hists->entries).
Reported-by: Ingo Molnar <mingo@elte.hu>
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-2ssjm0ouh9tsz4dwkcu7c40n@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/ui/browser.c')
| -rw-r--r-- | tools/perf/util/ui/browser.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/ui/browser.c b/tools/perf/util/ui/browser.c index 2923c49..078ceaf 100644 --- a/tools/perf/util/ui/browser.c +++ b/tools/perf/util/ui/browser.c @@ -249,6 +249,7 @@ void ui_browser__update_nr_entries(struct ui_browser *browser, u32 nr_entries) browser->top_idx += offset; } + browser->top = NULL; browser->seek(browser, browser->top_idx, SEEK_SET); } |
