From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756033AbXLEIAb (ORCPT ); Wed, 5 Dec 2007 03:00:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754479AbXLEHzl (ORCPT ); Wed, 5 Dec 2007 02:55:41 -0500 Received: from cantor.suse.de ([195.135.220.2]:38672 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751008AbXLEHzM (ORCPT ); Wed, 5 Dec 2007 02:55:12 -0500 Message-Id: <20071205071627.900265000@nick.local0.net> References: <20071205071547.701344000@nick.local0.net> User-Agent: quilt/0.46-14 Date: Wed, 05 Dec 2007 18:15:58 +1100 From: npiggin@suse.de To: akpm@linux-foundation.org Cc: rolandd@cisco.com, mshefty@ichips.intel.com, hal.rosenstock@gmail.com, general@lists.openfabrics.org, linux-kernel@vger.kernel.org Subject: [patch 11/18] ib: nopage Content-Disposition: inline; filename=ib-nopage.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Convert IB from nopage to fault. Signed-off-by: Nick Piggin Cc: rolandd@cisco.com Cc: mshefty@ichips.intel.com Cc: hal.rosenstock@gmail.com Cc: general@lists.openfabrics.org Cc: linux-kernel@vger.kernel.org --- drivers/infiniband/hw/ipath/ipath_debug.h | 4 +-- drivers/infiniband/hw/ipath/ipath_file_ops.c | 29 +++++++++------------------ 2 files changed, 12 insertions(+), 21 deletions(-) Index: linux-2.6/drivers/infiniband/hw/ipath/ipath_file_ops.c =================================================================== --- linux-2.6.orig/drivers/infiniband/hw/ipath/ipath_file_ops.c +++ linux-2.6/drivers/infiniband/hw/ipath/ipath_file_ops.c @@ -1120,33 +1120,24 @@ bail: } /* - * ipath_file_vma_nopage - handle a VMA page fault. + * ipath_file_vma_fault - handle a VMA page fault. */ -static struct page *ipath_file_vma_nopage(struct vm_area_struct *vma, - unsigned long address, int *type) +static int ipath_file_vma_fault(struct vm_area_struct *vma, + struct vm_fault *vmf) { - unsigned long offset = address - vma->vm_start; - struct page *page = NOPAGE_SIGBUS; - void *pageptr; + struct page *page; - /* - * Convert the vmalloc address into a struct page. - */ - pageptr = (void *)(offset + (vma->vm_pgoff << PAGE_SHIFT)); - page = vmalloc_to_page(pageptr); + page = vmalloc_to_page((void *)(vmf->pgoff << PAGE_SHIFT)); if (!page) - goto out; - - /* Increment the reference count. */ + return VM_FAULT_SIGBUS; get_page(page); - if (type) - *type = VM_FAULT_MINOR; -out: - return page; + vmf->page = page; + + return 0; } static struct vm_operations_struct ipath_file_vm_ops = { - .nopage = ipath_file_vma_nopage, + .fault = ipath_file_vma_fault, }; static int mmap_kvaddr(struct vm_area_struct *vma, u64 pgaddr, Index: linux-2.6/drivers/infiniband/hw/ipath/ipath_debug.h =================================================================== --- linux-2.6.orig/drivers/infiniband/hw/ipath/ipath_debug.h +++ linux-2.6/drivers/infiniband/hw/ipath/ipath_debug.h @@ -55,7 +55,7 @@ #define __IPATH_PKTDBG 0x80 /* print packet data */ /* print process startup (init)/exit messages */ #define __IPATH_PROCDBG 0x100 -/* print mmap/nopage stuff, not using VDBG any more */ +/* print mmap/fault stuff, not using VDBG any more */ #define __IPATH_MMDBG 0x200 #define __IPATH_ERRPKTDBG 0x400 #define __IPATH_USER_SEND 0x1000 /* use user mode send */ @@ -81,7 +81,7 @@ #define __IPATH_VERBDBG 0x0 /* very verbose debug */ #define __IPATH_PKTDBG 0x0 /* print packet data */ #define __IPATH_PROCDBG 0x0 /* process startup (init)/exit messages */ -/* print mmap/nopage stuff, not using VDBG any more */ +/* print mmap/fault stuff, not using VDBG any more */ #define __IPATH_MMDBG 0x0 #define __IPATH_EPKTDBG 0x0 /* print ethernet packet data */ #define __IPATH_IPATHDBG 0x0 /* Ethernet (IPATH) table dump on */ --