函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\ksm.c Create Date:2022-07-27 17:14:01
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：page_stable_node

函数原型：static inline struct stable_node *page_stable_node(struct page *page)

返回类型：struct stable_node

参数：

类型参数名称
struct page *page
862  返回:A KSM page is one of those write-protected "shared pages" or "merged pages"* which KSM maps into multiple mms, wherever identical anonymous page content* is found in VM_MERGEABLE vmas. It's a PageAnon page, pointing not to any ? Neutral page->mapping pointer to address_space or anon_vma or other : NULL
调用者
名称描述
stable_tree_searchstable_tree_search - search for page inside the stable tree* This function checks if there is a page inside the stable tree* with identical content to the page that we are scanning right now
cmp_and_merge_pagemp_and_merge_page - first see if page can be merged into the stable tree;* if not, compare checksum to previous and if it's the same, see if page can* be inserted into the unstable tree, or merged with a page already there and
ksm_might_need_to_copy
rmap_walk_ksm
reuse_ksm_page
ksm_migrate_page