kmalloc_order

函数名称：To avoid unnecessary overhead, we pass through large allocation requests* directly to the page allocator. We use __GFP_COMP, because we will need to* know the allocation order to free the pages properly in kfree.

函数原型：void *kmalloc_order(size_t size, gfp_t flags, unsigned int order)

返回类型：void

参数：

类型	参数	名称
size_t	size
gfp_t	flags
unsigned int	order

1320

void * ret = NULL

1323

flags或等于__GFP_COMP

1324

page等于alloc_pages(flags, order)

1325

如果此条件成立可能性大(为编译器优化)(page)则

1326

ret等于page_address(page)

1327

mod_node_page_state(page_pgdat(page), NR_SLAB_UNRECLAIMABLE, 1 << order)

1330

ret等于kasan_kmalloc_large(ret, size, flags)

1332

kmemleak_alloc(ret, size, 1, flags)

1333

返回:ret

**调用者**
名称	描述
kmalloc_order_trace

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