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 06:45:50
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:when CONFIG_HIGHMEM is not set these will be plain clear/copy_page

函数原型:static inline void clear_user_highpage(struct page *page, unsigned long vaddr)

返回类型:void

参数:

类型参数名称
struct page *page
unsigned longvaddr
160  addr等于kmap_atomic(page)
161  clear_user_page(addr, vaddr, page)
162  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.(addr)
调用者
名称描述
clear_gigantic_page
clear_subpage
__collapse_huge_page_copy
dax_iomap_pte_fault