函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\sys.c Create Date:2022-07-27 10:21:37
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：SYSCALL_DEFINE3

函数原型：SYSCALL_DEFINE3(getcpu, unsigned __user *, cpup, unsigned __user *, nodep, struct getcpu_cache __user *, unused)

返回类型：

参数：无

2501  err等于0
2502  cpu等于These macros fold the SMP functionality into a single CPU system()
2504  如果cpup则err或等于put_user - Write a simple value into user space(cpu, cpup)
2506  如果nodep则err或等于put_user - Write a simple value into user space(cpu_to_node(cpu), nodep)
2508  返回:如果err则负EFAULT否则0