Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754526AbcKQRA5 (ORCPT ); Thu, 17 Nov 2016 12:00:57 -0500 Received: from mo4-p00-ob.smtp.rzone.de ([81.169.146.220]:16381 "EHLO mo4-p00-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754420AbcKQRAy (ORCPT ); Thu, 17 Nov 2016 12:00:54 -0500 X-RZG-AUTH: :P2EQZWCpfu+qG7CngxMFH1J+zrwiavkK6tmQaLfswM/RAW08C8KYHUlxfwrhu4f27QZY X-RZG-CLASS-ID: mo00 Date: Thu, 17 Nov 2016 17:01:40 +0100 From: Olaf Hering To: Boris Ostrovsky Cc: david.vrabel@citrix.com, jgross@suse.com, xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] xen/gntdev: Use mempolicy instead of VM_IO flag to avoid NUMA balancing Message-ID: <20161117160140.GB19761@aepfle.de> References: <1479318378-595-1-git-send-email-boris.ostrovsky@oracle.com> <20161117112843.GA19761@aepfle.de> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="WhfpMioaduB5tiZL" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.6.2 (6759) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 822 Lines: 29 --WhfpMioaduB5tiZL Content-Type: text/plain; charset=utf-8 Content-Disposition: inline On Thu, Nov 17, Boris Ostrovsky wrote: > On 11/17/2016 06:28 AM, Olaf Hering wrote: > > ERROR: "__mpol_dup" [drivers/xen/xen-gntdev.ko] undefined! > > ERROR: "get_task_policy" [drivers/xen/xen-gntdev.ko] undefined! > I just built 4.4.11 with this patch applied and haven't had any problems. Are these functions exported? How would the driver module call into the core kernel? Maybe the added functionality should be provided by an exported helper function. Olaf --WhfpMioaduB5tiZL Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iEYEARECAAYFAlgt1GEACgkQXUKg+qaYNn7PSQCg0u3VIXsaCtQf3G6ns+8OK0Nl zEoAnjTEcmlQydFFkaSwrHypA34yzn+/ =RQHk -----END PGP SIGNATURE----- --WhfpMioaduB5tiZL--