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 11:34:28
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：active_cacheline_read_overlap

函数原型：static int active_cacheline_read_overlap(phys_addr_t cln)

返回类型：int

参数：

类型参数名称
phys_addr_tcln
462  overlap等于0
464  以i大于等于0循环如果adix_tree_tag_get - get a tag on a radix tree node*@root: radix tree root*@index: index key*@tag: tag index (< RADIX_TREE_MAX_TAGS)* Return values:* 0: tag not present or not set* 1: tag set* Note that the return value of this function may not be relied 则
466  overlap或等于1左移i位
467  返回:overlap
调用者
名称描述
active_cacheline_inc_overlap
active_cacheline_dec_overlap