Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\ring_buffer.c Create Date:2022-07-28 11:55:20
Last Modify:2020-03-17 19:30:04 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:g_buffer_iter_peek - peek at the next event to be read*@iter: The ring buffer iterator*@ts: The timestamp counter of this event.* This will return the event that will be read next, but does* not increment the iterator.

Proto:struct ring_buffer_event *ring_buffer_iter_peek(struct ring_buffer_iter *iter, u64 *ts)

Type:struct ring_buffer_event

Parameter:

TypeParameterName
struct ring_buffer_iter *iter
u64 *ts
4117  cpu_buffer = cpu_buffer
4121  again :
4122  raw_spin_lock_irqsave( & serialize readers , flags)
4123  event = rb_iter_peek(iter, ts)
4124  raw_spin_unlock_irqrestore( & serialize readers , flags)
4126  If event && type_len == RINGBUF_TYPE_PADDING Then Go to again
4129  Return event
Caller
NameDescribe
peek_next_entry
tracing_iter_reset
get_return_for_leaf