copy_user_highpage

函数名称：copy_user_highpage

函数原型：static inline void copy_user_highpage(struct page *to, struct page *from, unsigned long vaddr, struct vm_area_struct *vma)

返回类型：void

参数：

类型	参数	名称
struct page *	to
struct page *	from
unsigned long	vaddr
struct vm_area_struct *	vma

255

vfrom等于kmap_atomic(from)

256

vto等于kmap_atomic(to)

257

copy_user_page(vto, vfrom, vaddr, to)

258

Prevent people trying to call kunmap_atomic() as if it were kunmap()* kunmap_atomic() should get the return value of kmap_atomic, not the page.(vto)

259

Prevent people trying to call kunmap_atomic() as if it were kunmap()* kunmap_atomic() should get the return value of kmap_atomic, not the page.(vfrom)

**调用者**
名称	描述
cow_user_page
do_cow_fault
copy_user_gigantic_page
copy_subpage
ksm_might_need_to_copy
do_huge_pmd_wp_page_fallback
__collapse_huge_page_copy

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