[PATCH v3 3/7] x86: Stop calling page_address() in free_pages()
From: Vishal Moola (Oracle) <hidden>
Date: 2025-09-03 18:59:40
Also in:
linux-arm-kernel, linux-block, linux-efi, linux-mm, linux-riscv, lkml, virtualization
Subsystem:
extensible firmware interface (efi), the rest, x86 architecture (32-bit and 64-bit), x86 mm · Maintainers:
Ard Biesheuvel, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen, Andy Lutomirski, Peter Zijlstra
free_pages() should be used when we only have a virtual address. We should call __free_pages() directly on our page instead. Signed-off-by: Vishal Moola (Oracle) <redacted> Acked-by: Dave Hansen <dave.hansen@linux.intel.com> --- arch/x86/mm/init_64.c | 2 +- arch/x86/platform/efi/memmap.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index b9426fce5f3e..0e4270e20fad 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c@@ -1031,7 +1031,7 @@ static void __meminit free_pagetable(struct page *page, int order) free_reserved_pages(page, nr_pages); #endif } else { - free_pages((unsigned long)page_address(page), order); + __free_pages(page, order); } }
diff --git a/arch/x86/platform/efi/memmap.c b/arch/x86/platform/efi/memmap.c
index 061b8ecc71a1..023697c88910 100644
--- a/arch/x86/platform/efi/memmap.c
+++ b/arch/x86/platform/efi/memmap.c@@ -42,7 +42,7 @@ void __init __efi_memmap_free(u64 phys, unsigned long size, unsigned long flags) struct page *p = pfn_to_page(PHYS_PFN(phys)); unsigned int order = get_order(size); - free_pages((unsigned long) page_address(p), order); + __free_pages(p, order); } }
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2.51.0