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      1 /*	$NetBSD: pagemap.h,v 1.6 2021/12/19 11:33:49 riastradh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2013 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Taylor R. Campbell.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _LINUX_PAGEMAP_H_
     33 #define _LINUX_PAGEMAP_H_
     34 
     35 #include <sys/types.h>
     36 
     37 #include <linux/gfp.h>
     38 #include <linux/highmem.h>
     39 #include <linux/uaccess.h>
     40 
     41 struct uvm_object;
     42 
     43 static inline int
     44 fault_in_multipages_readable(const char *uaddr __unused, size_t len __unused)
     45 {
     46 	return 0;
     47 }
     48 
     49 static inline int
     50 fault_in_multipages_writeable(char *uaddr __unused, size_t len __unused)
     51 {
     52 	return 0;
     53 }
     54 
     55 static inline gfp_t
     56 mapping_gfp_mask(struct uvm_object *uobj __unused)
     57 {
     58 	return GFP_KERNEL;
     59 }
     60 
     61 #endif  /* _LINUX_PAGEMAP_H_ */
     62