Re: [PATCH] replace free hugepage folios after migration

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在 2024/12/20 2:43, SeongJae Park 写道:
Hello,

On Wed, 18 Dec 2024 14:33:08 +0800 yangge1116@xxxxxxx wrote:

[...]
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index ae4fe86..7d36ac8 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -681,6 +681,7 @@ struct huge_bootmem_page {
  };
int isolate_or_dissolve_huge_page(struct page *page, struct list_head *list);
+int replace_free_hugepage_folios(unsigned long start_pfn, unsigned long end_pfn);
  struct folio *alloc_hugetlb_folio(struct vm_area_struct *vma,
  				unsigned long addr, int avoid_reserve);
  struct folio *alloc_hugetlb_folio_nodemask(struct hstate *h, int preferred_nid,
@@ -1059,6 +1060,11 @@ static inline int isolate_or_dissolve_huge_page(struct page *page,
  	return -ENOMEM;
  }
+int replace_free_hugepage_folios(unsigned long start_pfn, unsigned long end_pfn)
+{
+	return 0;
+}
+

I think this should be static inline.  Otherwise, build fails when
CONFIG_HUGETLB_PAGE is unset.  Since this is already merged into mm-unstable
and the problem and fix seems straigthforward, I directly sent my fix:
https://lore.kernel.org/20241219183753.62922-1-sj@xxxxxxxxxx


Thanks,
SJ

[...]

Thanks.






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