Subject: Re: [RFC PATCH 02/19] drivers/vhost: Convert to use vm_account

From: Jason Gunthorpe <[email-masked]>
Date: Tue, 24 Jan 2023 10:34:24 -0400

On Tue, Jan 24, 2023 at 04:42:31PM +1100, Alistair Popple wrote:

> @@ -799,9 +803,6 @@ static int vhost_vdpa_map(struct vhost_vdpa *v, struct vhost_iotlb *iotlb,
>  		return r;
>  	}
>  
> -	if (!vdpa->use_va)
> -		atomic64_add(PFN_DOWN(size), &dev->mm->pinned_vm);

Mention in the commit message this fixes a "bug" where vhost didn't
respect the limits

Jason