函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\nommu.c Create Date:2022-07-27 16:04:18
Last Modify:2020-03-17 21:26:27 Copyright©Brick
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函数名称：follow_page

函数原型：struct page *follow_page(struct vm_area_struct *vma, unsigned long address, unsigned int foll_flags)

返回类型：struct page

参数：

类型参数名称
struct vm_area_struct *vma
unsigned longaddress
unsigned intfoll_flags
1649  返回:NULL
调用者
名称描述
munlock_vma_pages_rangemunlock_vma_pages_range() - munlock all pages in the vma range.'*@vma - vma containing range to be munlock()ed.*@start - start address in @vma of the range*@end - end of range in @vma.* For mremap(), munmap() and exit().* Called with @vma VM_LOCKED.
break_ksmWe use break_ksm to break COW on a ksm page: it's a stripped down* if (get_user_pages(addr, 1, 1, 1, &page, NULL) == 1)* put_page(page);* but taking great care only to touch a ksm page, in a VM_MERGEABLE vma,
get_mergeable_page
scan_get_next_rmap_item
add_page_for_migrationResolves the given address to a struct page, isolates it from the LRU and* puts it to the given pagelist
do_pages_stat_arrayDetermine the nodes of an array of pages and store it in an array of status.