函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\ptr_ring.h Create Date:2022-07-27 14:40:38
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:Note: resize (below) nests producer lock within consumer lock, so if you* consume in interrupt or BH context, you must disable interrupts/BH when* calling this.

函数原型:static inline int ptr_ring_produce(struct ptr_ring *r, void *ptr)

返回类型:int

参数:

类型参数名称
struct ptr_ring *r
void *ptr
127  加自旋锁
128  ret等于Note: callers invoking this in a loop must use a compiler barrier,* for example cpu_relax(). Callers must hold producer_lock.* Callers are responsible for making sure pointer that is being queued* points to a valid data.
129  自旋锁解锁
131  返回:ret