函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\swap.c Create Date:2022-07-27 15:37:00
Last Modify:2022-05-23 13:40:24 Copyright©Brick
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函数名称：Mark a page as having seen activity.* inactive,unreferenced -> inactive,referenced* inactive,referenced -> active,unreferenced* active,unreferenced -> active,referenced* When a newly allocated page is not yet visible, so safe for non-atomic ops,

函数原型：void mark_page_accessed(struct page *page)

返回类型：void

参数：

类型参数名称
struct page *page
375  page等于compound_head(page)
377  如果非PageReferenced(page)则
378  SetPageReferenced(page)
379  否则如果PageUnevictable(page)则否则如果非PageActive(page)则
392  如果PageLRU(page)则activate_page(page)
394  否则__lru_cache_activate_page(page)
396  ClearPageReferenced(page)
397  如果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则workingset_activation(page)
400  如果page_is_idle(page)则clear_page_idle(page)
调用者
名称描述
generic_file_buffered_readgeneric_file_buffered_read - generic file read routine*@iocb: the iocb to read*@iter: data destination*@written: already copied* This is a generic file read routine, and uses the* mapping->a_ops->readpage() function for the actual low-level stuff.
do_read_cache_page
follow_page_pte
zap_pte_range
try_to_merge_one_pagery_to_merge_one_page - take two pages and merge them into one*@vma: the vma that holds the pte pointing to page*@page: the PageAnon page that we want to replace with kpage*@kpage: the PageKsm page that we want to map instead of page,
iomap_zero
pagecache_get_pagepagecache_get_page - find and get a page reference*@mapping: the address_space to search*@offset: the page index*@fgp_flags: PCG flags*@gfp_mask: gfp mask to use for the page cache data page allocation* Looks up the page cache slot at @mapping & @offset.
touch_buffer