Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\seqlock.h Create Date:2022-07-28 05:35:24
Last Modify:2020-03-12 14:18:49 Copyright©Brick
home page Tree
Annotation kernel can get tool activityDownload SCCTChinese

Name:read_seqbegin_or_lock_irqsave

Proto:static inline unsigned long read_seqbegin_or_lock_irqsave(seqlock_t *lock, int *seq)

Type:unsigned long

Parameter:

TypeParameterName
seqlock_t *lock
int *seq
585  flags = 0
587  If Not (seq & 1) Then seq = Read side functions for starting and finalizing a read side section.
589  Else read_seqlock_excl_irqsave(lock, flags)
592  Return flags
Caller
NameDescribe
thread_group_cputimeAccumulate raw cputime values of dead tasks (sig->[us]time) and live* tasks (sum on group iteration) belonging to @tsk's group.