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ring-buffer: reset timestamps when ring buffer is reset 

Impact: fix bad times of recent resets

The ring buffer needs to reset its timestamps when reseting of the
buffer, otherwise the timestamps are stale and might be used to
calculate times in the buffer causing funny timestamps to appear.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Steven Rostedt 2009-01-21 18:45:57 -05:00 committed by Ingo Molnar
parent f8ec1062f5
commit 69507c0653
1 changed files with 3 additions and 0 deletions
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3
kernel/trace/ring_buffer.c
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@ -2166,6 +2166,9 @@ rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer)
cpu_buffer->overrun = 0;
cpu_buffer->entries = 0;
cpu_buffer->write_stamp = 0;
cpu_buffer->read_stamp = 0;
}
/**