函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\page_alloc.c Create Date:2022-07-27 16:33:03
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Return a pointer to the bitmap storing bits affecting a block of pages

函数原型：static inline unsigned long *get_pageblock_bitmap(struct page *page, unsigned long pfn)

返回类型：unsigned long

参数：

类型参数名称
struct page *page
unsigned longpfn
455  返回:* Flags for a pageblock_nr_pages block. See pageblock-flags.h. * In SPARSEMEM, this map is stored in struct mem_section
调用者
名称描述
__get_pfnblock_flags_maskget_pfnblock_flags_mask - Return the requested group of flags for the pageblock_nr_pages block of pages*@page: The page within the block of interest*@pfn: The target page frame number*@end_bitidx: The last bit of interest to retrieve*@mask: mask of bits
set_pfnblock_flags_maskset_pfnblock_flags_mask - Set the requested group of flags for a pageblock_nr_pages block of pages*@page: The page within the block of interest*@flags: The flags to set*@pfn: The target page frame number*@end_bitidx: The last bit of interest*@mask: mask