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mm: hugetlb_vmemmap: allow alloc vmemmap pages fallback to other nodes

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In vmemmap_remap_free(), a new head vmemmap page is allocated to avoid
breaking a contiguous block of struct page memory, however, the allocation
can always fail when the given node is movable node.  Remove the
__GFP_THISNODE to help avoid fragmentation.

Link: https://lkml.kernel.org/r/20230906093157.9737-1-yuancan@huawei.com
Signed-off-by: Yuan Can <yuancan@huawei.com>
Suggested-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Suggested-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Yuan Can 2023-09-06 17:31:57 +08:00 committed by Andrew Morton
parent 7fa38d0ea0
commit 6a898c2757
1 changed files with 1 additions and 2 deletions
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3
mm/hugetlb_vmemmap.c
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@ -320,8 +320,7 @@ static int vmemmap_remap_free(unsigned long start, unsigned long end,
.vmemmap_pages = &vmemmap_pages,
};
int nid = page_to_nid((struct page *)start);
gfp_t gfp_mask = GFP_KERNEL | __GFP_THISNODE | __GFP_NORETRY |
__GFP_NOWARN;
gfp_t gfp_mask = GFP_KERNEL | __GFP_NORETRY | __GFP_NOWARN;
/*
* Allocate a new head vmemmap page to avoid breaking a contiguous