1 // SPDX-License-Identifier: CDDL-1.0 2 /* 3 * CDDL HEADER START 4 * 5 * The contents of this file are subject to the terms of the 6 * Common Development and Distribution License (the "License"). 7 * You may not use this file except in compliance with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or https://opensource.org/licenses/CDDL-1.0. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 23 /* 24 * Copyright (c) 2015 by Chunwei Chen. All rights reserved. 25 */ 26 27 #ifndef _ZFS_KMAP_H 28 #define _ZFS_KMAP_H 29 30 #include <linux/highmem.h> 31 #include <linux/uaccess.h> 32 33 #ifdef HAVE_KMAP_LOCAL_PAGE 34 /* 5.11 API change */ 35 #define zfs_kmap_local(page) kmap_local_page(page) 36 #define zfs_kunmap_local(addr) kunmap_local(addr) 37 #else 38 /* 2.6.37 API change */ 39 #define zfs_kmap_local(page) kmap_atomic(page) 40 #define zfs_kunmap_local(addr) kunmap_atomic(addr) 41 #endif 42 #define zfs_kmap(page) kmap(page) 43 #define zfs_kunmap(page) kunmap(page) 44 45 /* 5.0 API change - no more 'type' argument for access_ok() */ 46 #ifdef HAVE_ACCESS_OK_TYPE 47 #define zfs_access_ok(type, addr, size) access_ok(type, addr, size) 48 #else 49 #define zfs_access_ok(type, addr, size) access_ok(addr, size) 50 #endif 51 52 #endif /* _ZFS_KMAP_H */ 53