Function report | 
Source Code:mm\mempolicy.c | 
Create Date:2022-07-28 15:32:41 | 
| Last Modify:2020-03-17 22:28:11 | Copyright©Brick | 
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| Annotation kernel can get tool activity | Download SCCT | Chinese | 
Name:get_vma_policy(@vma, @addr)*@vma: virtual memory area whose policy is sought*@addr: address in @vma for shared policy lookup* Returns effective policy for a VMA at specified address
Proto:static struct mempolicy *get_vma_policy(struct vm_area_struct *vma, unsigned long addr)
Type:struct mempolicy
Parameter:
| Type | Parameter | Name | 
|---|---|---|
| struct vm_area_struct * | vma | |
| unsigned long | addr | 
| 1757 | pol = __get_vma_policy(vma, addr) | 
| 1759 | If Not pol Then pol = get_task_policy(current process) | 
| 1762 | Return pol | 
| Name | Describe | 
|---|---|
| huge_node | huge_node(@vma, @addr, @gfp_flags, @mpol)*@vma: virtual memory area whose policy is sought*@addr: address in @vma for shared policy lookup and interleave policy*@gfp_flags: for requested zone*@mpol: pointer to mempolicy pointer for reference counted | 
| 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. | 
| mpol_misplaced | mpol_misplaced - check whether current page node is valid in policy*@page: page to be checked*@vma: vm area where page mapped*@addr: virtual address where page mapped* Lookup current policy node id for vma,addr and "compare to" page's* node id | 
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