函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\seqlock.h Create Date:2022-07-27 06:39:23
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：read_seqbegin_or_lock_irqsave

函数原型：static inline unsigned long read_seqbegin_or_lock_irqsave(seqlock_t *lock, int *seq)

返回类型：unsigned long

参数：

类型参数名称
seqlock_t *lock
int *seq
585  flags等于0
587  如果非seq按位与1的值则seq等于Read side functions for starting and finalizing a read side section.
589  否则read_seqlock_excl_irqsave(lock, flags)
592  返回:flags
调用者
名称描述
thread_group_cputimeAccumulate raw cputime values of dead tasks (sig->[us]time) and live* tasks (sum on group iteration) belonging to @tsk's group.