/*
* Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
-/*
+/*
* Mach Operating System
* Copyright (c) 1987 Carnegie-Mellon University
* All rights reserved. The CMU software License Agreement specifies
* the terms and conditions for use and redistribution.
*/
-#ifndef _VNODE_PAGER_
-#define _VNODE_PAGER_ 1
+#ifndef _VNODE_PAGER_
+#define _VNODE_PAGER_ 1
#include <mach/kern_return.h>
#include <sys/types.h>
#include <kern/queue.h>
-#ifdef KERNEL
+#ifdef KERNEL
#include <mach/boolean.h>
#include <mach/memory_object_types.h>
#include <mach/vm_types.h>
+#include <vm/vm_protos.h>
#include <vm/vm_pager.h>
-vm_pager_t vnode_pager_setup(struct vnode *, memory_object_t);
-
/*
* Vstructs are the internal (to us) description of a unit of backing store.
* The are the link between memory objects and the backing store they represent.
* Pager file structure. One per swap file.
*/
typedef struct pager_file {
- queue_chain_t pf_chain; /* link to other paging files */
- struct vnode *pf_vp; /* vnode of paging file */
- u_int pf_count; /* Number of vstruct using this file */
- u_char *pf_bmap; /* Map of used blocks */
- long pf_npgs; /* Size of file in pages */
- long pf_pfree; /* Number of unused pages */
- long pf_lowat; /* Low water page */
- long pf_hipage; /* Highest page allocated */
- long pf_hint; /* Lowest page unallocated */
- char *pf_name; /* Filename of this file */
- boolean_t pf_prefer;
- int pf_index; /* index into the pager_file array */
- void * pf_lock; /* Lock for alloc and dealloc */
+ queue_chain_t pf_chain; /* link to other paging files */
+ struct vnode *pf_vp; /* vnode of paging file */
+ u_int pf_count; /* Number of vstruct using this file */
+ u_char *pf_bmap; /* Map of used blocks */
+ long pf_npgs; /* Size of file in pages */
+ long pf_pfree; /* Number of unused pages */
+ long pf_lowat; /* Low water page */
+ long pf_hipage; /* Highest page allocated */
+ long pf_hint; /* Lowest page unallocated */
+ char *pf_name; /* Filename of this file */
+ boolean_t pf_prefer;
+ int pf_index; /* index into the pager_file array */
+ void * pf_lock; /* Lock for alloc and dealloc */
} *pager_file_t;
-#define PAGER_FILE_NULL (pager_file_t) 0
+#define PAGER_FILE_NULL (pager_file_t) 0
-#define MAXPAGERFILES 16
+#define MAXPAGERFILES 16
#define MAX_BACKING_STORE 100
struct bs_map {
- struct vnode *vp;
- void *bs;
+ struct vnode *vp;
+ void *bs;
};
extern struct bs_map bs_port_table[];
/*
* Pager file data structures.
*/
-#define INDEX_NULL 0
+#define INDEX_NULL 0
typedef struct {
- unsigned int index:8; /* paging file this block is in */
- unsigned int offset:24; /* page number where block resides */
+ unsigned int index:8; /* paging file this block is in */
+ unsigned int offset:24; /* page number where block resides */
} pf_entry;
typedef enum {
- IS_INODE, /* Local disk */
- IS_RNODE /* NFS */
- } vpager_fstype;
+ IS_INODE, /* Local disk */
+ IS_RNODE /* NFS */
+} vpager_fstype;
/*
* Basic vnode pager structure. One per object, backing-store pair.
*/
typedef struct vstruct {
- boolean_t is_device; /* Must be first - see vm_pager.h */
- pager_file_t vs_pf; /* Pager file this uses */
- pf_entry **vs_pmap; /* Map of pages into paging file */
+ boolean_t is_device; /* Must be first - see vm_pager.h */
+ pager_file_t vs_pf; /* Pager file this uses */
+ pf_entry **vs_pmap; /* Map of pages into paging file */
unsigned int
- /* boolean_t */ vs_swapfile:1; /* vnode is a swapfile */
- short vs_count; /* use count */
- int vs_size; /* size of this chunk in pages*/
- struct vnode *vs_vp; /* vnode to page to */
+ /* boolean_t */ vs_swapfile:1; /* vnode is a swapfile */
+ short vs_count; /* use count */
+ int vs_size; /* size of this chunk in pages*/
+ struct vnode *vs_vp; /* vnode to page to */
} *vnode_pager_t;
-#define VNODE_PAGER_NULL ((vnode_pager_t) 0)
-
-
-pager_return_t vnode_pagein(struct vnode *, upl_t,
- upl_offset_t, vm_object_offset_t,
- upl_size_t, int, int *);
-pager_return_t vnode_pageout(struct vnode *, upl_t,
- upl_offset_t, vm_object_offset_t,
- upl_size_t, int, int *);
-
-extern vm_object_offset_t vnode_pager_get_filesize(
- struct vnode *vp);
+#define VNODE_PAGER_NULL ((vnode_pager_t) 0)
-#endif /* KERNEL */
+#endif /* KERNEL */
-#endif /* _VNODE_PAGER_ */
+#endif /* _VNODE_PAGER_ */
projects / apple / xnu.git / blobdiff