Re: Nick's core remove PageReserved broke vmware...

[Gleb Natapov <gleb@minantech.com>]

On Tue, Nov 08, 2005 at 11:34:07PM +0200, Michael S. Tsirkin wrote:
> Index: linux-2.6.14-dontcopy/mm/madvise.c
> ===================================================================
> --- linux-2.6.14-dontcopy.orig/mm/madvise.c	2005-10-28 02:02:08.000000000 +0200
> +++ linux-2.6.14-dontcopy/mm/madvise.c	2005-11-08 23:28:56.000000000 +0200
> @@ -31,6 +31,12 @@ static long madvise_behavior(struct vm_a
>  	case MADV_RANDOM:
>  		new_flags |= VM_RAND_READ;
>  		break;
> +	case MADV_DONTCOPY:
> +		new_flags |= VM_UDONTCOPY;
> +		break;
> +	case MADV_DOCOPY:
> +		new_flags &= ~VM_UDONTCOPY;
> +		break;
>  	default:
>  		break;
>  	}
I think you are removing VM_RAND_READ/VM_SEQ_READ here.
Also perhapse we should skip VM_SHARED VMAs?

--
			Gleb.
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