From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f175.google.com (mail-pd0-f175.google.com [209.85.192.175]) by kanga.kvack.org (Postfix) with ESMTP id B940F828FD for ; Thu, 5 Feb 2015 15:45:30 -0500 (EST) Received: by pdbnh10 with SMTP id nh10so7347657pdb.0 for ; Thu, 05 Feb 2015 12:45:30 -0800 (PST) Received: from mga09.intel.com (mga09.intel.com. [134.134.136.24]) by mx.google.com with ESMTP id qi4si7632973pac.85.2015.02.05.12.45.29 for ; Thu, 05 Feb 2015 12:45:29 -0800 (PST) From: "Wilcox, Matthew R" Subject: RE: [next:master 4658/4676] undefined reference to `copy_user_page' Date: Thu, 5 Feb 2015 20:45:26 +0000 Message-ID: <100D68C7BA14664A8938383216E40DE0408569A1@FMSMSX114.amr.corp.intel.com> References: <201501221315.sbz4rdsB%fengguang.wu@intel.com> <100D68C7BA14664A8938383216E40DE040853FB4@FMSMSX114.amr.corp.intel.com> <20150205122115.8fe1037870b76d75afc3fb03@linux-foundation.org> <100D68C7BA14664A8938383216E40DE040856952@FMSMSX114.amr.corp.intel.com> <20150205122552.1485c1439ec6c019e9443c51@linux-foundation.org> In-Reply-To: <20150205122552.1485c1439ec6c019e9443c51@linux-foundation.org> Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: "Wu, Fengguang" , "kbuild-all@01.org" , Linux Memory Management List , "linux-mips@linux-mips.org" , "linux-arm-kernel@lists.arm.linux.org.uk" MIPS: https://lkml.org/lkml/2015/1/31/1 ARM: https://marc.info/?l=3Dlinaro-kernel&m=3D142253251904005&w=3D3 -----Original Message----- From: Andrew Morton [mailto:akpm@linux-foundation.org]=20 Sent: Thursday, February 05, 2015 12:26 PM To: Wilcox, Matthew R Cc: Wu, Fengguang; kbuild-all@01.org; Linux Memory Management List; linux-m= ips@linux-mips.org; linux-arm-kernel@lists.arm.linux.org.uk Subject: Re: [next:master 4658/4676] undefined reference to `copy_user_page= ' On Thu, 5 Feb 2015 20:22:34 +0000 "Wilcox, Matthew R" wrote: >=20 > -----Original Message----- > From: Andrew Morton [mailto:akpm@linux-foundation.org]=20 > Sent: Thursday, February 05, 2015 12:21 PM > To: Wilcox, Matthew R > Cc: Wu, Fengguang; kbuild-all@01.org; Linux Memory Management List; linux= -mips@linux-mips.org; linux-arm-kernel@lists.arm.linux.org.uk > Subject: Re: [next:master 4658/4676] undefined reference to `copy_user_pa= ge' >=20 > On Thu, 22 Jan 2015 15:12:15 +0000 "Wilcox, Matthew R" wrote: >=20 > > Looks like mips *declares* copy_user_page(), but never *defines* an imp= lementation. > >=20 > > It's documented in Documentation/cachetlb.txt, but it's not (currently)= called if the architecture defines its own copy_user_highpage(), so some b= itrot has occurred. ARM is currently fixing this, and MIPS will need to do= the same. > >=20 > > (We can't use copy_user_highpage() in DAX because we don't necessarily = have a struct page for 'from'.) >=20 > > Has there been any progress on this? It would be unpleasant to merge > > DAX into 3.19 and break MIPS and ARM. > > Yes, both MIPS and ARM have sent patches out for this. I'm not seeing either in linux-next. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org