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