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 07:10:36
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：xas_destroy() - Free any resources allocated during the XArray operation.*@xas: XArray operation state.* This function is now internal-only.

函数原型：static void xas_destroy(struct xa_state *xas)

返回类型：void

参数：

类型参数名称
struct xa_state *xas
269  node等于xa_alloc
271  如果非node则返回
273  XA_NODE_BUG_ON(node, !链表为空)
274  kmem_cache_free(Move the radix tree node cache here , node)
275  xa_alloc = NULL
调用者
名称描述
xas_nomemxas_nomem() - Allocate memory if needed.*@xas: XArray operation state.*@gfp: Memory allocation flags.* If we need to add new nodes to the XArray, we try to allocate memory* with GFP_NOWAIT while holding the lock, which will usually succeed.
__xas_nomem__xas_nomem() - Drop locks and allocate memory if needed.*@xas: XArray operation state.*@gfp: Memory allocation flags.* Internal variant of xas_nomem().* Return: true if memory was needed, and was successfully allocated.