diff options
Diffstat (limited to 'sys/vm/vm_reserv.h')
| -rw-r--r-- | sys/vm/vm_reserv.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/sys/vm/vm_reserv.h b/sys/vm/vm_reserv.h new file mode 100644 index 0000000..7cf814b --- /dev/null +++ b/sys/vm/vm_reserv.h @@ -0,0 +1,59 @@ +/*- + * Copyright (c) 2002-2006 Rice University + * Copyright (c) 2007 Alan L. Cox <alc@cs.rice.edu> + * All rights reserved. + * + * This software was developed for the FreeBSD Project by Alan L. Cox, + * Olivier Crameri, Peter Druschel, Sitaram Iyer, and Juan Navarro. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY + * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + * $FreeBSD$ + */ + +/* + * Superpage reservation management definitions + */ + +#ifndef _VM_RESERV_H_ +#define _VM_RESERV_H_ + +#ifdef _KERNEL + +#if VM_NRESERVLEVEL > 0 + +vm_page_t vm_reserv_alloc_page(vm_object_t object, vm_pindex_t pindex); +void vm_reserv_break_all(vm_object_t object); +boolean_t vm_reserv_free_page(vm_page_t m); +void vm_reserv_init(void); +int vm_reserv_level_iffullpop(vm_page_t m); +boolean_t vm_reserv_reactivate_page(vm_page_t m); +boolean_t vm_reserv_reclaim(void); +void vm_reserv_rename(vm_page_t m, vm_object_t new_object, + vm_object_t old_object, vm_pindex_t old_object_offset); +vm_paddr_t vm_reserv_startup(vm_offset_t *vaddr, vm_paddr_t end, + vm_paddr_t high_water); + +#endif /* VM_NRESERVLEVEL > 0 */ +#endif /* _KERNEL */ +#endif /* !_VM_RESERV_H_ */ |
