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 10:48:45
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:lock for reading

函数原型:inline void __down_read(struct rw_semaphore *sem)

返回类型:void

参数:

类型参数名称
struct rw_semaphore *sem
1343  如果非rwsem_read_trylock(sem)则
1344  Wait for the read lock to be granted
1346  否则
1347  rwsem_set_reader_owned(sem)
调用者
名称描述
down_read_non_owner
__percpu_down_read