Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

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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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:

TypeParameterName
struct vm_area_struct *vma
unsigned longaddr
1757  pol = __get_vma_policy(vma, addr)
1759  If Not pol Then pol = get_task_policy(current process)
1762  Return pol
Caller
NameDescribe
huge_nodehuge_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_vmaalloc_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_misplacedmpol_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