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From: Wei Yang <richard.weiyang@gmail.com>
To: akpm@linux-foundation.org, david@redhat.com,
	lorenzo.stoakes@oracle.com, riel@surriel.com,
	Liam.Howlett@oracle.com, vbabka@suse.cz, harry.yoo@oracle.com
Cc: linux-mm@kvack.org, Wei Yang <richard.weiyang@gmail.com>
Subject: [Patch v2 2/2] mm/rmap: use folio_large_nr_pages() when we are sure it is a large folio
Date: Sun, 17 Aug 2025 03:26:47 +0000	[thread overview]
Message-ID: <20250817032647.29147-3-richard.weiyang@gmail.com> (raw)
In-Reply-To: <20250817032647.29147-1-richard.weiyang@gmail.com>

Non-large folio is handled at the beginning, so it is a large folio for
sure.

Use folio_large_nr_pages() here like elsewhere.

Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Harry Yoo <harry.yoo@oracle.com>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: David Hildenbrand <david@redhat.com>
---
 mm/rmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/rmap.c b/mm/rmap.c
index a927437a56c2..14cf3b24ae50 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1703,7 +1703,7 @@ static __always_inline void __folio_remove_rmap(struct folio *folio,
 			nr = folio_sub_return_large_mapcount(folio, nr_pages, vma);
 			if (!nr) {
 				/* Now completely unmapped. */
-				nr = folio_nr_pages(folio);
+				nr = folio_large_nr_pages(folio);
 			} else {
 				partially_mapped = nr < folio_large_nr_pages(folio) &&
 						   !folio_entire_mapcount(folio);
-- 
2.34.1



      parent reply	other threads:[~2025-08-17  3:27 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-17  3:26 [Patch v2 0/2] mm/rmap: small cleanup for __folio_remove_rmap() Wei Yang
2025-08-17  3:26 ` [Patch v2 1/2] mm/rmap: not necessary to mask off FOLIO_PAGES_MAPPED Wei Yang
2025-08-17  3:26 ` Wei Yang [this message]

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