linux-kernel - [PATCH v4 05/27] mm/hugetlb: remove redundant _

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Message-ID: <20250218181656.207178-6-fvdl@google.com>
Date: Tue, 18 Feb 2025 18:16:33 +0000
From: Frank van der Linden <fvdl@...gle.com>
To: akpm@...ux-foundation.org, muchun.song@...ux.dev, linux-mm@...ck.org, 
	linux-kernel@...r.kernel.org
Cc: yuzhao@...gle.com, usamaarif642@...il.com, joao.m.martins@...cle.com, 
	roman.gushchin@...ux.dev, Frank van der Linden <fvdl@...gle.com>, 
	Oscar Salvador <osalvador@...e.de>
Subject: [PATCH v4 05/27] mm/hugetlb: remove redundant __ClearPageReserved

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@...e.de>
Signed-off-by: Frank van der Linden <fvdl@...gle.com>
---
 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