alloc_pages

函数名称：alloc_pages_exact - allocate an exact number physically-contiguous pages.*@size: the number of bytes to allocate*@gfp_mask: GFP flags for the allocation, must not contain __GFP_COMP* This function is similar to alloc_pages(), except that it allocates the

函数原型：void *alloc_pages_exact(size_t size, gfp_t gfp_mask)

返回类型：void

参数：

类型	参数	名称
size_t	size
gfp_t	gfp_mask

4953

order等于get_order - Determine the allocation order of a memory size*@size: The size for which to get the order* Determine the allocation order of a particular sized block of memory

4956

如果WARN_ON_ONCE(gfp_mask & __GFP_COMP)则gfp_mask与等于__GFP_COMP的反

4959

addr等于Common helper functions. Never use with __GFP_HIGHMEM because the returned* address cannot represent highmem pages. Use alloc_pages and then kmap if* you need to access high mem.

4960

返回:make_alloc_exact(addr, order, size)

**调用者**
名称	描述
crash_save_vmcoreinfo_init
alloc_large_system_hash	allocate a large system hash table from bootmem* - it is assumed that the hash table must contain an exact power-of-2* quantity of entries* - limit is the number of hash buckets, not the total allocation size
profile_init	分配内核性能统计
do_mmap_private	set up a private mapping or an anonymous shared mapping

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