函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\xarray.h Create Date:2022-07-27 06:43:51
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：xas_invalid() - Is the xas in a retry or error state?*@xas: XArray operation state.* Return: %true if the xas cannot be used for operations.

函数原型：static inline bool xas_invalid(const struct xa_state *xas)

返回类型：bool

参数：

类型参数名称
const struct xa_state *xas
1412  返回:xa_node按位与3
调用者
名称描述
xas_alloc
xas_storexas_store() - Store this entry in the XArray
xas_get_markxas_get_mark() - Returns the state of this mark.*@xas: XArray operation state.*@mark: Mark number.* Return: true if the mark is set, false if the mark is clear or @xas* is in an error state.
xas_set_markxas_set_mark() - Sets the mark on this entry and its parents.*@xas: XArray operation state.*@mark: Mark number.* Sets the specified mark on this entry, and walks up the tree setting it* on all the ancestor entries
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
xas_pausexas_pause() - Pause a walk to drop a lock.*@xas: XArray operation state.* Some users need to pause a walk and drop the lock they're holding in* order to yield to a higher priority thread or carry out an operation* on an entry
xa_find_afterxa_find_after() - Search the XArray for a present entry.*@xa: XArray.*@indexp: Pointer to an index.*@max: Maximum index to search to.*@filter: Selection criterion.* Finds the entry in @xa which matches the @filter and has the lowest
xas_validxas_valid() - Is the xas a valid cursor into the array?*@xas: XArray operation state.* Return: %true if the xas can be used for operations.