函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\vmscan.c Create Date:2022-07-27 15:44:19
Last Modify:2022-05-23 13:41:30 Copyright©Brick
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函数名称：page_evictable - test whether a page is evictable*@page: the page to test* Test whether page is evictable--i

函数原型：int page_evictable(struct page *page)

返回类型：int

参数：

类型参数名称
struct page *page
4315  _read_lock() - mark the beginning of an RCU read-side critical section* When synchronize_rcu() is invoked on one CPU while other CPUs* are within RCU read-side critical sections, then the* synchronize_rcu() is guaranteed to block until after all the other
4316  ret等于非mapping_unevictable(page_mapping(page))且非PageMlocked(page)
4317  _read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()
4318  返回:ret
调用者
名称描述
shrink_page_listshrink_page_list() returns the number of reclaimed pages
move_pages_to_lruThis moves pages from @list to corresponding LRU list.* We move them the other way if the page is referenced by one or more* processes, from rmap.* If the pages are mostly unmapped, the processing is fast and it is
shrink_active_list
check_move_unevictable_pagesheck_move_unevictable_pages - check pages for evictability and move to* appropriate zone lru list*@pvec: pagevec with lru pages to check* Checks pages for evictability, if an evictable page is in the unevictable
__putback_lru_fast_preparePrepare page for fast batched LRU putback via putback_lru_evictable_pagevec()* The fast path is available only for evictable pages with single mapping.* Then we can bypass the per-cpu pvec and get better performance.
__pagevec_lru_add_fn