函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\fcntl.c Create Date:2022-07-29 10:35:41
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：f_setown

函数原型：int f_setown(struct file *filp, unsigned long arg, int force)

返回类型：int

参数：

类型参数名称
struct file *filp
unsigned longarg
intforce
116  struct pid * pid = NULL
117  who等于arg, ret等于0
119  type等于PIDTYPE_TGID
120  如果who小于0则
122  如果who恒等于INT_MIN则返回:负EINVAL
125  type等于进程组
126  who等于负who
129  _read_lock() - mark the beginning of an RCU read-side critical section* When synchronize_rcu() is invoked on one CPU while other CPUs* are within RCU read-side critical sections, then the* synchronize_rcu() is guaranteed to block until after all the other
130  如果who则
131  pid等于find_vpid(who)
132  如果非pid则ret等于负ESRCH
136  如果非ret则__f_setown(filp, pid, type, force)
138  _read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()
140  返回:ret
调用者
名称描述
do_fcntl