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 10:48:22
Last Modify:2020-03-12 14:18:49 Copyright©Brick
首页 函数Tree
注解内核,赢得工具下载SCCTEnglish

函数名称：Test the flags in the owner field.

函数原型：static inline bool rwsem_test_oflags(struct rw_semaphore *sem, long flags)

返回类型：bool

参数：

类型参数名称
struct rw_semaphore *sem
longflags
190  返回:atomic_long_read( & Write owner or one of the read owners as well flags regarding* the current state of the rwsem. Can be used as a speculative* check to see if the write owner is running on the cpu.)按位与flags
调用者
名称描述
is_rwsem_reader_ownedReturn true if the rwsem is owned by a reader.
__up_writelock after writing