[v3] riscv: Memory Hot(Un)Plug support

[PATCH v3 1/9] riscv: mm: Properly forward vmemmap_populate() altmap parameter

Posted by Björn Töpel 1 year, 8 months ago

From: Björn Töpel <bjorn@rivosinc.com>

Make sure that the altmap parameter is properly passed on to
vmemmap_populate_hugepages().

Signed-off-by: Björn Töpel <bjorn@rivosinc.com>
---
 arch/riscv/mm/init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index 2574f6a3b0e7..b66f846e7634 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -1434,7 +1434,7 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node,
 	 * memory hotplug, we are not able to update all the page tables with
 	 * the new PMDs.
 	 */
-	return vmemmap_populate_hugepages(start, end, node, NULL);
+	return vmemmap_populate_hugepages(start, end, node, altmap);
 }
 #endif
 
-- 
2.40.1

Re: [PATCH v3 1/9] riscv: mm: Properly forward vmemmap_populate() altmap parameter

Posted by Alexandre Ghiti 1 year, 8 months ago

Hi Björn,

On Tue, May 21, 2024 at 1:48 PM Björn Töpel <bjorn@kernel.org> wrote:
>
> From: Björn Töpel <bjorn@rivosinc.com>
>
> Make sure that the altmap parameter is properly passed on to
> vmemmap_populate_hugepages().
>
> Signed-off-by: Björn Töpel <bjorn@rivosinc.com>
> ---
>  arch/riscv/mm/init.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
> index 2574f6a3b0e7..b66f846e7634 100644
> --- a/arch/riscv/mm/init.c
> +++ b/arch/riscv/mm/init.c
> @@ -1434,7 +1434,7 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node,
>          * memory hotplug, we are not able to update all the page tables with
>          * the new PMDs.
>          */
> -       return vmemmap_populate_hugepages(start, end, node, NULL);
> +       return vmemmap_populate_hugepages(start, end, node, altmap);
>  }
>  #endif
>
> --
> 2.40.1
>

You can add:

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

Thanks,

Alex