[PATCH RFC 14/35] mm/mm/percpu-km: drop nth_page() usage within single allocation
From: David Hildenbrand <hidden>
Date: 2025-08-21 20:07:50
Also in:
dri-devel, intel-gfx, io-uring, kvm, linux-arm-kernel, linux-crypto, linux-ide, linux-iommu, linux-kselftest, linux-mips, linux-mm, linux-mmc, linux-riscv, linux-s390, linux-scsi, lkml, virtualization
Subsystem:
memory management, per-cpu memory allocator, the rest · Maintainers:
Andrew Morton, Dennis Zhou, Tejun Heo, Christoph Lameter, Linus Torvalds
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 <redacted> --- 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