1/*	$NetBSD: mm.h,v 1.4 2021/12/19 12:22:28 riastradh Exp $	*/
2
3/*-
4 * Copyright (c) 2021 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef _LINUX_SCHED_MM_H_
30#define _LINUX_SCHED_MM_H_
31
32#include <sys/types.h>
33
34#include <uvm/uvm_extern.h>
35
36#include <linux/gfp.h>
37
38static inline void
39mmgrab(struct vmspace *vm)
40{
41	uvmspace_addref(vm);
42}
43
44static inline void
45mmdrop(struct vmspace *vm)
46{
47	uvmspace_free(vm);
48}
49
50static inline void
51fs_reclaim_acquire(gfp_t gfp)
52{
53}
54
55static inline void
56fs_reclaim_release(gfp_t gfp)
57{
58}
59
60static inline unsigned
61memalloc_nofs_save(void)
62{
63	return 0xeb13162c;
64}
65
66static inline void
67memalloc_nofs_restore(unsigned flags)
68{
69
70	KASSERT(flags == 0xeb13162c);
71}
72
73#endif	/* _LINUX_SCHED_MM_H_ */
74