函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\highmem.h Create Date:2022-07-27 06:45:51
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：copy_highpage

函数原型：static inline void copy_highpage(struct page *to, struct page *from)

返回类型：void

参数：

类型参数名称
struct page *to
struct page *from
270  vfrom等于kmap_atomic(from)
271  vto等于kmap_atomic(to)
272  copy_page(vto, vfrom)
273  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)
274  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
kimage_alloc_page
uprobe_write_opcodeNOTE:* Expect the breakpoint instruction to be the smallest size instruction for* the architecture
__copy_gigantic_pageGigantic pages are so large that we do not guarantee that page++ pointer* arithmetic will work across the entire page. We need something more* specialized.
copy_huge_page
migrate_page_copy