vmemdup_user

函数名称：vmemdup_user - duplicate memory region from user space*@src: source address in user space*@len: number of bytes to copy* Return: an ERR_PTR() on failure. Result may be not* physically contiguous. Use kvfree() to free.

函数原型：void *vmemdup_user(const void __user *src, size_t len)

返回类型：void

参数：

类型	参数	名称
const void __user *	src
size_t	len

198

p等于kvmalloc(len, GFP_USER)

199

如果非p则返回:错误号

202

如果copy_from_user(p, src, len)则

203

kvfree() - Free memory.*@addr: Pointer to allocated memory.* kvfree frees memory allocated by any of vmalloc(), kmalloc() or kvmalloc().* It is slightly more efficient to use kfree() or vfree() if you are certain* that you know which one to use.

204

返回:错误号

207

返回:p

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告