From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from d01relay04.pok.ibm.com (d01relay04.pok.ibm.com [9.56.227.236]) by e2.ny.us.ibm.com (8.13.8/8.13.8) with ESMTP id l1JIVZFD018183 for ; Mon, 19 Feb 2007 13:31:35 -0500 Received: from d01av04.pok.ibm.com (d01av04.pok.ibm.com [9.56.224.64]) by d01relay04.pok.ibm.com (8.13.8/8.13.8/NCO v8.2) with ESMTP id l1JIVZBZ287008 for ; Mon, 19 Feb 2007 13:31:35 -0500 Received: from d01av04.pok.ibm.com (loopback [127.0.0.1]) by d01av04.pok.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id l1JIVYqm001370 for ; Mon, 19 Feb 2007 13:31:35 -0500 From: Adam Litke Subject: [PATCH 1/7] Introduce the pagetable_operations and associated helper macros. Date: Mon, 19 Feb 2007 10:31:34 -0800 Message-Id: <20070219183133.27318.92920.stgit@localhost.localdomain> In-Reply-To: <20070219183123.27318.27319.stgit@localhost.localdomain> References: <20070219183123.27318.27319.stgit@localhost.localdomain> Content-Type: text/plain; charset=utf-8; format=fixed Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org Return-Path: To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, agl@us.ibm.com List-ID: Signed-off-by: Adam Litke --- include/linux/mm.h | 25 +++++++++++++++++++++++++ 1 files changed, 25 insertions(+), 0 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 2d2c08d..a2fa66d 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -98,6 +98,7 @@ struct vm_area_struct { /* Function pointers to deal with this struct. */ struct vm_operations_struct * vm_ops; + struct pagetable_operations_struct * pagetable_ops; /* Information about our backing store: */ unsigned long vm_pgoff; /* Offset (within vm_file) in PAGE_SIZE @@ -218,6 +219,30 @@ struct vm_operations_struct { }; struct mmu_gather; + +struct pagetable_operations_struct { + int (*fault)(struct mm_struct *mm, + struct vm_area_struct *vma, + unsigned long address, int write_access); + int (*copy_vma)(struct mm_struct *dst, struct mm_struct *src, + struct vm_area_struct *vma); + int (*pin_pages)(struct mm_struct *mm, struct vm_area_struct *vma, + struct page **pages, struct vm_area_struct **vmas, + unsigned long *position, int *length, int i); + void (*change_protection)(struct vm_area_struct *vma, + unsigned long address, unsigned long end, pgprot_t newprot); + unsigned long (*unmap_page_range)(struct vm_area_struct *vma, + unsigned long address, unsigned long end, long *zap_work); + void (*free_pgtable_range)(struct mmu_gather **tlb, + unsigned long addr, unsigned long end, + unsigned long floor, unsigned long ceiling); +}; + +#define has_pt_op(vma, op) \ + ((vma)->pagetable_ops && (vma)->pagetable_ops->op) +#define pt_op(vma, call) \ + ((vma)->pagetable_ops->call) + struct inode; #define page_private(page) ((page)->private) -- 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