From: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Date: Wed, 3 Sep 2025 18:59:20 +0000 (-0700)
Subject: arm64: stop calling page_address() in free_pages()
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=350554f7a044cbd05a6eea78b6538d4f21f67a4d;p=users%2Fjedix%2Flinux-maple.git

arm64: stop calling page_address() in free_pages()

free_pages() should be used when we only have a virtual address.  We
should call __free_pages() directly on our page instead.

Link: https://lkml.kernel.org/r/20250903185921.1785167-7-vishal.moola@gmail.com
Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Justin Sanders <justin@coraid.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Cc: SeongJae Park <sj@kernel.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 183801520740..980d7745a549 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -836,7 +836,7 @@ static void free_hotplug_page_range(struct page *page, size_t size,
 		vmem_altmap_free(altmap, size >> PAGE_SHIFT);
 	} else {
 		WARN_ON(PageReserved(page));
-		free_pages((unsigned long)page_address(page), get_order(size));
+		__free_pages(page, get_order(size));
 	}
 }