[PATCH v4 05/27] mm/hugetlb: remove redundant __ClearPageReserved

From: Frank van der Linden
Date: Tue Feb 18 2025 - 13:18:10 EST


In hugetlb_folio_init_tail_vmemmap, the reserved flag is cleared for
the tail page just before it is zeroed out, which is redundant.
Remove the __ClearPageReserved call.

Reviewed-by: Oscar Salvador <osalvador@xxxxxxx>
Signed-off-by: Frank van der Linden <fvdl@xxxxxxxxxx>
---
mm/hugetlb.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index fadfacf56066..d6d7ebc75b86 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -3198,7 +3198,6 @@ static void __init hugetlb_folio_init_tail_vmemmap(struct folio *folio,
for (pfn = head_pfn + start_page_number; pfn < end_pfn; pfn++) {
struct page *page = pfn_to_page(pfn);

- __ClearPageReserved(folio_page(folio, pfn - head_pfn));
__init_single_page(page, pfn, zone, nid);
prep_compound_tail((struct page *)folio, pfn - head_pfn);
ret = page_ref_freeze(page, 1);
--
2.48.1.601.g30ceb7b040-goog