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 15:44:11
Last Modify:2022-05-23 13:41:30 Copyright©Brick
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函数名称：node_unmapped_file_pages

函数原型：static inline unsigned long node_unmapped_file_pages(struct pglist_data *pgdat)

返回类型：unsigned long

参数：

类型参数名称
struct pglist_data *pgdat
4158  file_mapped等于node_page_state(pgdat, NR_FILE_MAPPED)
4159  file_lru等于node_page_state(pgdat, NR_INACTIVE_FILE)加node_page_state(pgdat, NR_ACTIVE_FILE)
4167  返回:如果file_lru大于file_mapped则file_lru减file_mapped否则0
调用者
名称描述
node_pagecache_reclaimableWork out how many page cache pages we can reclaim in this reclaim_mode