函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\mincore.c Create Date:2022-07-27 16:12:08
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：__mincore_unmapped_range

函数原型：static int __mincore_unmapped_range(unsigned long addr, unsigned long end, struct vm_area_struct *vma, unsigned char *vec)

返回类型：int

参数：

类型参数名称
unsigned longaddr
unsigned longend
struct vm_area_struct *vma
unsigned char *vec
98  nr等于end减addr右移PAGE_SHIFT determines the page size 位
101  如果File we map to (can be NULL). 则
104  pgoff等于linear_page_index(vma, addr)
105  以i小于nr循环vec[i]等于Later we can get more picky about what "in core" means precisely.* For now, simply check to see if the page is in the page cache,* and is up to date; i.e. that no page-in operation would be required
107  否则
108  以i小于nr循环vec[i]等于0
111  返回:nr
调用者
名称描述
mincore_unmapped_range
mincore_pte_range