Re: [RFC PATCH 3/5] numa: introduce per-cgroup preferred numa node

[Peter Zijlstra]

On Mon, Apr 22, 2019 at 10:13:36AM +0800, çè wrote:
> diff --git a/mm/mempolicy.c b/mm/mempolicy.c
> index af171ccb56a2..6513504373b4 100644
> --- a/mm/mempolicy.c
> +++ b/mm/mempolicy.c
> @@ -2031,6 +2031,10 @@ alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma,
> 
>  	pol = get_vma_policy(vma, addr);
> 
> +	page = alloc_page_numa_preferred(gfp, order);
> +	if (page)
> +		goto out;
> +
>  	if (pol->mode == MPOL_INTERLEAVE) {
>  		unsigned nid;
> 

This I think is wrong, it overrides app specific mbind() requests.