Re: [PATCH] mm/cma: get nid from physical address

[Kefeng Wang]

On 2024/5/16 17:17, Yajun Deng wrote:
> The nid passed to cma_declare_contiguous_nid() may be NUMA_NO_NODE,
> which is not the actual nid. To get the correct nid, we can get the nid
> from physical address.

Please check

https://lore.kernel.org/linux-riscv/47437c2b-5946-41c6-ad1b-cc03329eb230@xxxxxxxxxx/

> Signed-off-by: Yajun Deng <yajun.deng@xxxxxxxxx>
> ---
>   mm/cma.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/mm/cma.c b/mm/cma.c
> index 3e9724716bad..be6cdde32944 100644
> --- a/mm/cma.c
> +++ b/mm/cma.c
> @@ -361,6 +361,7 @@ int __init cma_declare_contiguous_nid(phys_addr_t base,
>   		kmemleak_ignore_phys(addr);
>   		base = addr;
>   	}
> +	nid = early_pfn_to_nid(PHYS_PFN(base));
>   
>   	ret = cma_init_reserved_mem(base, size, order_per_bit, name, res_cma);
>   	if (ret)