函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\xarray.c Create Date:2022-07-27 07:10:34
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：rns true if the bit was set

函数原型：static inline bool node_clear_mark(struct xa_node *node, unsigned int offset, xa_mark_t mark)

返回类型：bool

参数：

类型参数名称
struct xa_node *node
unsigned intoffset
xa_mark_tmark
100  返回:__test_and_clear_bit - Clear a bit and return its old value*@nr: Bit to clear*@addr: Address to count from* This operation is non-atomic. If two instances of this operation race, one* can appear to succeed but actually fail.
调用者
名称描述
xas_expandxas_expand adds nodes to the head of the tree until it has reached* sufficient height to be able to contain @xas->xa_index
xas_clear_markxas_clear_mark() - Clears the mark on this entry and its parents.*@xas: XArray operation state.*@mark: Mark number.* Clears the specified mark on this entry, and walks back to the head* attempting to clear it on all the ancestor entries. Does nothing if