diff mbox series

[v4,1/4] mm: hugetlb_vmemmap: Use nid of the head page to reallocate it

Message ID 20230906112605.2286994-2-usama.arif@bytedance.com (mailing list archive)
State New
Headers show
Series mm: hugetlb: Skip initialization of gigantic tail struct pages if freed by HVO | expand

Commit Message

Usama Arif Sept. 6, 2023, 11:26 a.m. UTC 
If tail page prep and initialization is skipped, then the "start"
page will not contain the correct nid. Use the nid from first
vmemap page.

Signed-off-by: Usama Arif <usama.arif@bytedance.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 mm/hugetlb_vmemmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/mm/hugetlb_vmemmap.c b/mm/hugetlb_vmemmap.c
index aeb7dd889eee..3cdb38d87a95 100644
--- a/mm/hugetlb_vmemmap.c
+++ b/mm/hugetlb_vmemmap.c
@@ -319,7 +319,7 @@  static int vmemmap_remap_free(unsigned long start, unsigned long end,
 		.reuse_addr	= reuse,
 		.vmemmap_pages	= &vmemmap_pages,
 	};
-	int nid = page_to_nid((struct page *)start);
+	int nid = page_to_nid((struct page *)reuse);
 	gfp_t gfp_mask = GFP_KERNEL | __GFP_THISNODE | __GFP_NORETRY |
 			__GFP_NOWARN;