forked from luck/tmp_suning_uos_patched
ring-buffer: have benchmark test handle discarded events
With the addition of commit:
c7b0930857
ring-buffer: prevent adding write in discarded area
The ring buffer may now add discarded events when a write passes
the end of a buffer page. Before, a discarded event was only added
when the tracer deliberately created one. The ring buffer benchmark
test does not handle discarded events when it reads the buffer and
fails when it encounters one.
Also fix the increment for large data entries (luckily, the test did
not add any yet).
[ Impact: fix false failure of ring buffer self test ]
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
parent
c7b0930857
commit
9086c7b90a
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@ -102,8 +102,10 @@ static enum event_status read_page(int cpu)
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event = (void *)&rpage->data[i];
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switch (event->type_len) {
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case RINGBUF_TYPE_PADDING:
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/* We don't expect any padding */
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/* failed writes may be discarded events */
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if (!event->time_delta)
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KILL_TEST();
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inc = event->array[0] + 4;
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break;
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case RINGBUF_TYPE_TIME_EXTEND:
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inc = 8;
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@ -119,7 +121,7 @@ static enum event_status read_page(int cpu)
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KILL_TEST();
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break;
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}
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inc = event->array[0];
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inc = event->array[0] + 4;
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break;
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default:
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entry = ring_buffer_event_data(event);
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