函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\locking\rwsem.c Create Date:2022-07-27 10:48:52
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：rylock for writing -- returns 1 if successful, 0 if contention

函数原型：int down_write_trylock(struct rw_semaphore *sem)

返回类型：int

参数：

类型参数名称
struct rw_semaphore *sem
1562  ret等于__down_write_trylock(sem)
1564  如果ret恒等于1则rwsem_acquire( & dep_map, 0, 1, _RET_IP_)
1567  返回:ret