xnu-1699.26.8.tar.gz

[apple/xnu.git] / bsd / miscfs / specfs / specdev.h

diff --git a/bsd/miscfs/specfs/specdev.h b/bsd/miscfs/specfs/specdev.h
index f40247957ebeabb31edf2b48274c038f771c0320..7b44d40e37ba5bb10cc8ac4fc30f3cae6106b517 100644 (file)
--- a/bsd/miscfs/specfs/specdev.h
+++ b/bsd/miscfs/specfs/specdev.h
@@ -1,23 +1,29 @@
 /*
  * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_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 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.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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.
+ * 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_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * Copyright (c) 1995, 1998 Apple Computer, Inc. All Rights Reserved.
@@ -73,9 +79,16 @@ struct specinfo {
        struct  vnode *si_specnext;
        long    si_flags;
        dev_t   si_rdev;
+       int32_t si_opencount;
        daddr_t si_size;                /* device block size in bytes */
        daddr64_t       si_lastr;       /* last read blkno (read-ahead) */
        u_int64_t       si_devsize;     /* actual device size in bytes */
+
+       u_int8_t        si_initted;
+       u_int8_t        si_throttleable;
+       u_int16_t       si_isssd;
+       u_int32_t       si_devbsdunit;
+       u_int64_t       si_throttle_mask;
 };
 /*
  * Exported shorthand
@@ -92,6 +105,7 @@ struct specinfo {
  * Flags for specinfo
  */
 #define        SI_MOUNTEDON    0x0001  /* block special device is mounted on */
+#define SI_ALIASED     0x0002  /* multiple active vnodes refer to this device */
 
 /*
  * Special device management
@@ -111,11 +125,19 @@ extern struct vnode *speclisth[SPECHSZ];
 extern int (**spec_vnodeop_p)(void *);
 struct nameidata;
 struct componentname;
-struct ucred;
 struct flock;
 struct buf;
 struct uio;
 
+__BEGIN_DECLS
+#ifdef BSD_KERNEL_PRIVATE
+int spec_blktooff (struct  vnop_blktooff_args *);
+int spec_offtoblk (struct  vnop_offtoblk_args *);
+int    spec_fsync_internal (vnode_t, int, vfs_context_t);
+int spec_blockmap (struct  vnop_blockmap_args *);
+int spec_kqfilter (vnode_t vp, struct knote *kn);
+#endif /* BSD_KERNEL_PRIVATE */
+
 int    spec_ebadf(void *);
 
 int    spec_lookup (struct vnop_lookup_args *);
@@ -133,7 +155,6 @@ int spec_select (struct vnop_select_args *);
 #define spec_revoke (int (*) (struct  vnop_access_args *))nop_revoke
 #define spec_mmap (int (*) (struct  vnop_access_args *))err_mmap
 int    spec_fsync (struct  vnop_fsync_args *);
-int    spec_fsync_internal (vnode_t, int, vfs_context_t);
 #define spec_remove (int (*) (struct  vnop_access_args *))err_remove
 #define spec_link (int (*) (struct  vnop_access_args *))err_link
 #define spec_rename (int (*) (struct  vnop_access_args *))err_rename
@@ -154,9 +175,7 @@ int spec_pathconf (struct vnop_pathconf_args *);
 #define spec_valloc (int (*) (struct  vnop_access_args *))err_valloc
 #define spec_vfree (int (*) (struct  vnop_access_args *))err_vfree
 #define spec_bwrite (int (*) (struct  vnop_bwrite_args *))nop_bwrite
-int spec_blktooff (struct  vnop_blktooff_args *);
-int spec_offtoblk (struct  vnop_offtoblk_args *);
-int spec_blockmap (struct  vnop_blockmap_args *);
+__END_DECLS
 
 #endif /* __APPLE_API_PRIVATE */
 #endif /* _MISCFS_SPECFS_SPECDEV_H_ */