alternate_node

函数名称：Try allocating on another node if PFA_SPREAD_SLAB is a mempolicy is set.* If we are in_interrupt, then process context, including cpusets and* mempolicy, may not apply and should not be used for allocation policy.

函数原型：static void *alternate_node_alloc(struct kmem_cache *cachep, gfp_t flags)

返回类型：void

参数：

类型	参数	名称
struct kmem_cache *	cachep
gfp_t	flags

3132

如果in_interrupt()或flags按位与__GFP_THISNODE则返回:NULL

3134

nid_alloc等于nid_here等于Returns the number of the nearest Node with memory

3135

如果cpuset_do_slab_mem_spread()且Used for retrieving partial slabs, etc. 按位与Spread some memory over cpuset 则nid_alloc等于cpuset_slab_spread_node()

3137

否则如果mempolicy则nid_alloc等于Depending on the memory policy provide a node from which to allocate the* next slab entry.

3139

如果nid_alloc不等于nid_here则返回:A interface to enable slab creation on nodeid

3141

返回:NULL

**调用者**
名称	描述
__do_cache_alloc

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告