[PATCH v3 4/7] riscv: Stop calling page_address() in free_pages()

Vishal Moola (Oracle) posted 7 patches 4 weeks, 1 day ago
[PATCH v3 4/7] riscv: Stop calling page_address() in free_pages()
Posted by Vishal Moola (Oracle) 4 weeks, 1 day ago
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) <vishal.moola@gmail.com>
---
 arch/riscv/mm/init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index 15683ae13fa5..1056c11d3251 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -1624,7 +1624,7 @@ static void __meminit free_pud_table(pud_t *pud_start, p4d_t *p4d)
 	if (PageReserved(page))
 		free_reserved_page(page);
 	else
-		free_pages((unsigned long)page_address(page), 0);
+		__free_pages(page, 0);
 	p4d_clear(p4d);
 }
 
@@ -1646,7 +1646,7 @@ static void __meminit free_vmemmap_storage(struct page *page, size_t size,
 		return;
 	}
 
-	free_pages((unsigned long)page_address(page), order);
+	__free_pages(page, order);
 }
 
 static void __meminit remove_pte_mapping(pte_t *pte_base, unsigned long addr, unsigned long end,
-- 
2.51.0
Re: [PATCH v3 4/7] riscv: Stop calling page_address() in free_pages()
Posted by Alexandre Ghiti 4 weeks ago
Hi Vishal,

On 9/3/25 20:59, Vishal Moola (Oracle) wrote:
> 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) <vishal.moola@gmail.com>
> ---
>   arch/riscv/mm/init.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
> index 15683ae13fa5..1056c11d3251 100644
> --- a/arch/riscv/mm/init.c
> +++ b/arch/riscv/mm/init.c
> @@ -1624,7 +1624,7 @@ static void __meminit free_pud_table(pud_t *pud_start, p4d_t *p4d)
>   	if (PageReserved(page))
>   		free_reserved_page(page);
>   	else
> -		free_pages((unsigned long)page_address(page), 0);
> +		__free_pages(page, 0);
>   	p4d_clear(p4d);
>   }
>   
> @@ -1646,7 +1646,7 @@ static void __meminit free_vmemmap_storage(struct page *page, size_t size,
>   		return;
>   	}
>   
> -	free_pages((unsigned long)page_address(page), order);
> +	__free_pages(page, order);
>   }
>   
>   static void __meminit remove_pte_mapping(pte_t *pte_base, unsigned long addr, unsigned long end,


Acked-by: Alexandre Ghiti <alexghiti@rivosinc.com>

Thanks,

Alex