linux-kernel - [PATCH RFC 14/35] mm/mm/percpu-km: drop nth

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Message-ID: <20250821200701.1329277-15-david@redhat.com>
Date: Thu, 21 Aug 2025 22:06:40 +0200
From: David Hildenbrand <david@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: David Hildenbrand <david@...hat.com>,
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Subject: [PATCH RFC 14/35] mm/mm/percpu-km: drop nth_page() usage within single allocation

We're allocating a higher-order page from the buddy. For these pages
(that are guaranteed to not exceed a single memory section) there is no
need to use nth_page().

Signed-off-by: David Hildenbrand <david@...hat.com>
---
 mm/percpu-km.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/percpu-km.c b/mm/percpu-km.c
index fe31aa19db81a..4efa74a495cb6 100644
--- a/mm/percpu-km.c
+++ b/mm/percpu-km.c
@@ -69,7 +69,7 @@ static struct pcpu_chunk *pcpu_create_chunk(gfp_t gfp)
 	}
 
 	for (i = 0; i < nr_pages; i++)
-		pcpu_set_page_chunk(nth_page(pages, i), chunk);
+		pcpu_set_page_chunk(pages + i, chunk);
 
 	chunk->data = pages;
 	chunk->base_addr = page_address(pages);
-- 
2.50.1