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
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函数名称：f_modown

函数原型：static void f_modown(struct file *filp, struct pid *pid, enum pid_type type, int force)

返回类型：void

参数：

类型参数名称
struct file *filp
struct pid *pid
enum pid_typetype
intforce
90  write_lock_irq( & protects pid, uid, euid fields )
91  如果force或非 pid or -pgrp where SIGIO should be sent 则
92  put_pid( pid or -pgrp where SIGIO should be sent )
93  pid or -pgrp where SIGIO should be sent 等于get_pid(pid)
94  Kind of process group SIGIO should be sent to 等于type
96  如果pid则
97  cred等于current_cred - Access the current task's subjective credentials* Access the subjective credentials of the current task. RCU-safe,* since nobody else can modify it.()
98  uid等于进程uid
99  uid/euid of process setting the owner 等于有效uid
102  write_unlock_irq( & protects pid, uid, euid fields )
调用者
名称描述
__f_setown
f_delown