xnu-517.12.7.tar.gz

[apple/xnu.git] / bsd / sys / ubc.h

diff --git a/bsd/sys/ubc.h b/bsd/sys/ubc.h
index 0b647d1db31212d5706ffe899a07b7607ba6cdf0..0e401f6f79969187b403d9e9afe61a3ef9995123 100644 (file)
--- a/bsd/sys/ubc.h
+++ b/bsd/sys/ubc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1999, 2000-2002 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
@@ -31,6 +31,7 @@
 #ifndef        _SYS_UBC_H_
 #define        _SYS_UBC_H_
 
+#include <sys/appleapiopts.h>
 #include <sys/types.h>
 #include <sys/ucred.h>
 #include <sys/vnode.h>
@@ -42,6 +43,7 @@
 #define UBC_INFO_NULL  ((struct ubc_info *) 0)
 #define UBC_NOINFO             ((struct ubc_info *)0xDEADD1ED)
 
+#ifdef __APPLE_API_PRIVATE
 extern struct zone     *ubc_info_zone;
 
 /*
@@ -50,14 +52,15 @@ extern struct zone  *ubc_info_zone;
  */
 
 struct ubc_info {
-       void                    * ui_pager;     /* pager */
-       void                    *ui_object;     /* VM object corresponding to the pager */
-       long                    ui_flags;       /* flags */
-       struct vnode    *ui_vnode;      /* The vnode associated with this ubc_info */
-       struct ucred    *ui_ucred;      /* holds credentials for NFS paging */
-       int                             ui_holdcnt; /* hold the memory object */
-       off_t                   ui_size;        /* file size for the vnode */
-       long                    ui_mapped;      /* is it currently mapped */
+       memory_object_t                 ui_pager;       /* pager */
+       memory_object_control_t ui_control;     /* VM control for the pager */
+       long                                    ui_flags;       /* flags */
+       struct vnode                    *ui_vnode;      /* The vnode for this ubc_info */
+       struct ucred                    *ui_ucred;      /* holds credentials for NFS paging */
+       int                                             ui_refcount;/* ref count on the ubc_info */
+       off_t                                   ui_size;        /* file size for the vnode */
+       long                                    ui_mapped;      /* is it currently mapped */
+       void                                    *ui_owner;      /* for recursive ubc_busy */
 };
 
 /* Defines for ui_flags */
@@ -67,14 +70,19 @@ struct ubc_info {
 #define UI_HASOBJREF   0x00000004              /* hold a reference on object */
 #define UI_WASMAPPED   0x00000008              /* vnode was mapped */
 #define        UI_DONTCACHE    0x00000010              /* do not cache object */
+#define        UI_BUSY                 0x00000020              /* for VM synchronization */
+#define        UI_WANTED               0x00000040              /* for VM synchronization */
 
+#endif /* __APPLE_API_PRIVATE */
+
+#ifdef __APPLE_API_EVOLVING
 /*
  * exported primitives for loadable file systems.
  */
 
 __BEGIN_DECLS
 int    ubc_info_init __P((struct vnode *));
-void   ubc_info_free  __P((struct vnode *));
+void   ubc_info_deallocate  __P((struct ubc_info *));
 int    ubc_setsize __P((struct vnode *, off_t));
 off_t  ubc_getsize __P((struct vnode *));
 int    ubc_uncache __P((struct vnode *));
@@ -82,9 +90,9 @@ int   ubc_umount __P((struct mount *));
 void   ubc_unmountall __P(());
 int    ubc_setcred __P((struct vnode *, struct proc *));
 struct ucred *ubc_getcred __P((struct vnode *));
-void *ubc_getpager __P((struct vnode *));
-void *ubc_getobject __P((struct vnode *, int));
-int ubc_setpager __P((struct vnode *, void *));
+memory_object_t ubc_getpager __P((struct vnode *));
+memory_object_control_t ubc_getobject __P((struct vnode *, int));
+int ubc_setpager __P((struct vnode *, memory_object_t));
 int ubc_setflags __P((struct vnode *, int));
 int ubc_clearflags __P((struct vnode *, int));
 int ubc_issetflags __P((struct vnode *, int));
@@ -92,24 +100,42 @@ off_t ubc_blktooff __P((struct vnode *, daddr_t));
 daddr_t ubc_offtoblk __P((struct vnode *, off_t));
 int ubc_clean __P((struct vnode *, int));
 int    ubc_pushdirty __P((struct vnode *));
+int    ubc_pushdirty_range __P((struct vnode *, off_t, off_t));
 int ubc_hold __P((struct vnode *));
 void ubc_rele __P((struct vnode *));
 void ubc_map __P((struct vnode *));
-int    ubc_release __P((struct vnode *));
+int    ubc_destroy_named __P((struct vnode *));
+int    ubc_release_named __P((struct vnode *));
 int    ubc_invalidate __P((struct vnode *, off_t, size_t));
 int    ubc_isinuse __P((struct vnode *, int));
 
+int    ubc_page_op __P((struct vnode *, off_t, int, ppnum_t *, int *));
+
 /* cluster IO routines */
 int    cluster_read __P((struct vnode *, struct uio *, off_t, int, int));
 int    advisory_read __P((struct vnode *, off_t, off_t, int, int));
 int    cluster_write __P((struct vnode *, struct uio*, off_t, off_t,
                off_t, off_t,  int, int));
 int    cluster_push __P((struct vnode *));
+int    cluster_release __P((struct vnode *));
 int    cluster_pageout __P((struct vnode *, upl_t, vm_offset_t, off_t, int,
                off_t, int, int));
 int    cluster_pagein __P((struct vnode *, upl_t, vm_offset_t, off_t, int,
                off_t, int, int));
 int    cluster_bp __P((struct buf *));
+int    cluster_copy_upl_data __P((struct uio *, upl_t, int, int));
+int    cluster_copy_ubc_data __P((struct vnode *, struct uio *, int *, int));
+
+/* UPL routines */
+int    ubc_create_upl __P((struct vnode *, off_t, long, upl_t *,
+               upl_page_info_t **, int));
+int ubc_upl_map __P((upl_t, vm_offset_t *));
+int ubc_upl_unmap __P((upl_t));
+int ubc_upl_commit __P((upl_t));
+int ubc_upl_commit_range __P((upl_t, vm_offset_t, vm_size_t, int));
+int ubc_upl_abort __P((upl_t, int));
+int ubc_upl_abort_range __P((upl_t, vm_offset_t, vm_size_t, int));
+upl_page_info_t *ubc_upl_pageinfo __P((upl_t));
 __END_DECLS
 
 #define UBCINFOMISSING(vp) \
@@ -136,10 +162,11 @@ __END_DECLS
                panic("%s: lost ubc_info", (fun));
 
 /* Flags for ubc_getobject() */
+#define UBC_FLAGS_NONE         0x0000
 #define UBC_HOLDOBJECT         0x0001
-#define UBC_NOREACTIVATE       0x0002
-#define        UBC_PAGINGOP            0x0004
+#define UBC_FOR_PAGEOUT         0x0002
 
+#endif /* __APPLE_API_EVOLVING */
 
 #endif /* _SYS_UBC_H_ */