Function report |
Source Code:kernel\events\ring_buffer.c |
Create Date:2022-07-28 13:42:03 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:We need to ensure a later event_id doesn't publish a head when a former* event isn't done writing. However since we need to deal with NMIs we* cannot fully serialize things.* We only publish the head (and generate a wakeup) when the outer-most
Proto:static void perf_output_get_handle(struct perf_output_handle *handle)
Type:void
Parameter:
Type | Parameter | Name |
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struct perf_output_handle * | handle |
46 | ( * (volatile unsigned int * ) & nested writers )++ |
47 | wakeup = local_read( & wakeup stamp ) |
Name | Describe |
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__perf_output_begin |
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