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 10:48:25
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:Return the real task structure pointer of the owner and the embedded* flags in the owner. pflags must be non-NULL.

函数原型:static inline struct task_struct *rwsem_owner_flags(struct rw_semaphore *sem, unsigned long *pflags)

返回类型:struct task_struct

参数:

类型参数名称
struct rw_semaphore *sem
unsigned long *pflags
298  owner等于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.)
300  pflags等于owner按位与RWSEM_OWNER_FLAGS_MASK
301  返回:owner按位与RWSEM_OWNER_FLAGS_MASK的反