__alloc_pages

函数名称：Allocate pages, preferring the node given as nid. The node must be valid and* online. For more general interface, see alloc_pages_node().

函数原型：static inline struct page *__alloc_pages_node(int nid, gfp_t gfp_mask, unsigned int order)

返回类型：struct page

参数：

**调用者**
名称	描述
__page_cache_alloc
new_non_cma_page
alloc_new_node_page	page allocation callback for NUMA node migration
alloc_pages_vma	alloc_pages_vma - Allocate a page for a VMA.@gfp: %GFP_USER user allocation.* %GFP_KERNEL kernel allocations,* %GFP_HIGHMEM highmem/user allocations,* %GFP_FS allocation should not call back into a file system.* %GFP_ATOMIC don't sleep.
slob_new_pages
kmem_getpages	Interface to system's page allocator. No need to hold the* kmem_cache_node ->list_lock.* If we requested dmaable memory, we will get it. Even if we* did not request dmaable memory, we might get it, but that* would be relatively rare and ignorable.
alloc_slab_page	Slab allocation and freeing
khugepaged_alloc_page
alloc_pages_node	Allocate pages, preferring the node given as nid. When nid == NUMA_NO_NODE,* prefer the current CPU's closest node. Otherwise node must be valid and* online.

函数逻辑报告