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 16:36:23
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:__page_frag_cache_drain

函数原型:void __page_frag_cache_drain(struct page *page, unsigned int count)

返回类型:void

参数:

类型参数名称
struct page *page
unsigned intcount
4847  VM_BUG_ON_PAGE(page_ref_count(page) == 0, page)
4849  如果page_ref_sub_and_test(page, count)则free_the_page(page, compound_order(page))