函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\page-flags.h Create Date:2022-07-27 06:40:11
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：page_has_type

函数原型：static inline int page_has_type(struct page *page)

返回类型：int

参数：

类型参数名称
struct page *page
733  返回:* If the page is neither PageSlab nor mappable to userspace, * the value stored here may help determine what this page * is used for. See page-flags.h for a list of page types * which are currently stored here.小于Reserve 0x0000007f to catch underflows of page_mapcount
调用者
名称描述
insert_pageThis is the old fallback for page remapping.* For historical reasons, it only allows reserved pages. Only* old drivers should use this, and they needed to mark their* pages reserved for the old functions anyway.