Function report |
Source Code:kernel\trace\ring_buffer.c |
Create Date:2022-07-28 11:54:53 |
| Last Modify:2020-03-17 19:30:04 | Copyright©Brick |
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| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:g_buffer_dropped_events_cpu - get the number of dropped events caused by* the ring buffer filling up (only if RB_FL_OVERWRITE is off).*@buffer: The ring buffer*@cpu: The per CPU buffer to get the number of overruns from
Proto:unsigned long ring_buffer_dropped_events_cpu(struct ring_buffer *buffer, int cpu)
Type:unsigned long
Parameter:
| Type | Parameter | Name |
|---|---|---|
| struct ring_buffer * | buffer | |
| int | cpu |
| 3470 | If Not pumask_test_cpu - test for a cpu in a cpumask*@cpu: cpu number (< nr_cpu_ids)*@cpumask: the cpumask pointer* Returns 1 if @cpu is set in @cpumask, else returns 0 Then Return 0 |
| 3473 | cpu_buffer = buffers[cpu] |
| 3474 | ret = local_read( & dropped_events) |
| 3476 | Return ret |
| Name | Describe |
|---|---|
| tracing_stats_read |
| Source code conversion tool public plug-in interface | X |
|---|---|
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