函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\mempolicy.c Create Date:2022-07-27 17:04:26
Last Modify:2020-03-17 22:28:11 Copyright©Brick
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函数名称：migrate_page_add

函数原型：static int migrate_page_add(struct page *page, struct list_head *pagelist, unsigned long flags)

返回类型：int

参数：

类型参数名称
struct page *page
struct list_head *pagelist
unsigned longflags
989  head等于compound_head(page)
993  如果flags按位与Move every page to conform to policy 或page_mapcount(head)恒等于1则
994  如果非solate_lru_page - tries to isolate a page from its LRU list*@page: page to isolate from its LRU list* Isolates a @page from an LRU list, clears PageLRU and adjusts the* vmstat statistic corresponding to whatever LRU list the page was on.则
995  添加链表项
996  mod_node_page_state(page_pgdat(head), Temporary isolated pages from anon lru + page_is_file_cache - should the page be on a file LRU or anon LRU?*@page: the page to test* Returns 1 if @page is page cache page backed by a regular filesystem,* or 0 if @page is anonymous, tmpfs or otherwise ram or swap backed, hpage_nr_pages(head))
999  否则如果flags按位与Verify existing pages in the mapping 则
1007  返回:负EIO
1011  返回:0
调用者
名称描述
queue_pages_pmdqueue_pages_pmd() has four possible return values:* 0 - pages are placed on the right node or queued successfully
queue_pages_pte_rangeScan through pages checking if pages follow certain conditions,* and move them to the pagelist if they do