函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\pagemap.h Create Date:2022-07-27 06:45:56
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：mapping_exiting

函数原型：static inline int mapping_exiting(struct address_space *mapping)

返回类型：int

参数：

类型参数名称
struct address_space *mapping
87  返回:st_bit - Determine whether a bit is set*@nr: bit number to test*@addr: Address to start counting from
调用者
名称描述
unaccount_page_cache_page
__remove_mappingSame as remove_mapping, but if the page is removed from the mapping, it* gets returned with a refcount of 0.