xnu-6153.11.26.tar.gz

[apple/xnu.git] / bsd / vm / vnode_pager.h

diff --git a/bsd/vm/vnode_pager.h b/bsd/vm/vnode_pager.h
index 45b21e9fb2f2c71242531156d8d11008060095e4..920212c5c276c5354476a6356cdeba6bfd6b16fb 100644 (file)
--- a/bsd/vm/vnode_pager.h
+++ b/bsd/vm/vnode_pager.h
@@ -1,47 +1,51 @@
 /*
 /*

- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * 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,
  * 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.
  */
 
  * 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>
 
 
 #include <mach/kern_return.h>
 #include <sys/types.h>
 #include <kern/queue.h>
 

-#ifdef KERNEL
-
+#ifdef  KERNEL

 #include <mach/boolean.h>
 #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>
 
 #include <vm/vm_pager.h>
 

-vm_pager_t     vnode_pager_setup();
-boolean_t      vnode_has_page();
-boolean_t      vnode_pager_active();
-

 /*
  *  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.
 /*
  *  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.


@@ -64,71 +68,65 @@ boolean_t   vnode_pager_active();
  * Pager file structure.  One per swap file.
  */
 typedef struct pager_file {
  * 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;
 
 } *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 {
 
 #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.
  */
 
 
 
 /*
  * Pager file data structures.
  */

-#define        INDEX_NULL      0
+#define INDEX_NULL      0

 typedef struct {
 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 {
 } 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 {
 
 /*
  *  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
        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;
 
 } *vnode_pager_t;
 

-#define        VNODE_PAGER_NULL        ((vnode_pager_t) 0)
-
-
-
-pager_return_t pager_vnode_pagein();
-pager_return_t pager_vnode_pageout();
-pager_return_t vnode_pagein();
-pager_return_t vnode_pageout();
+#define VNODE_PAGER_NULL        ((vnode_pager_t) 0)

 
 

-#endif /* KERNEL */
+#endif  /* KERNEL */

 
 

-#endif /* _VNODE_PAGER_ */
+#endif  /* _VNODE_PAGER_ */