1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or https://opensource.org/licenses/CDDL-1.0. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 2015 by Chunwei Chen. All rights reserved. 24 */ 25 26 #ifndef _ZFS_KMAP_H 27 #define _ZFS_KMAP_H 28 29 #include <linux/highmem.h> 30 #include <linux/uaccess.h> 31 32 #ifdef HAVE_KMAP_LOCAL_PAGE 33 /* 5.11 API change */ 34 #define zfs_kmap_local(page) kmap_local_page(page) 35 #define zfs_kunmap_local(addr) kunmap_local(addr) 36 #else 37 /* 2.6.37 API change */ 38 #define zfs_kmap_local(page) kmap_atomic(page) 39 #define zfs_kunmap_local(addr) kunmap_atomic(addr) 40 #endif 41 #define zfs_kmap(page) kmap(page) 42 #define zfs_kunmap(page) kunmap(page) 43 44 /* 5.0 API change - no more 'type' argument for access_ok() */ 45 #ifdef HAVE_ACCESS_OK_TYPE 46 #define zfs_access_ok(type, addr, size) access_ok(type, addr, size) 47 #else 48 #define zfs_access_ok(type, addr, size) access_ok(addr, size) 49 #endif 50 51 #endif /* _ZFS_KMAP_H */ 52