函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\dma\debug.c Create Date:2022-07-27 11:34:29
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：active_cacheline_set_overlap

函数原型：static int active_cacheline_set_overlap(phys_addr_t cln, int overlap)

返回类型：int

参数：

类型参数名称
phys_addr_tcln
intoverlap
474  如果overlap大于ACTIVE_CACHELINE_MAX_OVERLAP或overlap小于0则返回:overlap
477  以i大于等于0循环如果overlap按位与1左移i位则
479  adix_tree_tag_set - set a tag on a radix tree node*@root: radix tree root*@index: index key*@tag: tag index* Set the search tag (which must be < RADIX_TREE_MAX_TAGS)* corresponding to @index in the radix tree. From
480  否则adix_tree_tag_clear - clear a tag on a radix tree node*@root: radix tree root*@index: index key*@tag: tag index* Clear the search tag (which must be < RADIX_TREE_MAX_TAGS)* corresponding to @index in the radix tree
483  返回:overlap
调用者
名称描述
active_cacheline_inc_overlap
active_cacheline_dec_overlap