X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/ff6e181ae92fc6f1e89841290f461d1f2f9badd9..3903760236c30e3b5ace7a4eefac3a269d68957c:/bsd/miscfs/specfs/specdev.h

diff --git a/bsd/miscfs/specfs/specdev.h b/bsd/miscfs/specfs/specdev.h
index 79be5771e..2b14d796b 100644
--- a/bsd/miscfs/specfs/specdev.h
+++ b/bsd/miscfs/specfs/specdev.h
@@ -1,14 +1,19 @@
 /*
  * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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
@@ -18,7 +23,7 @@
  * 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.
@@ -74,9 +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
@@ -93,15 +105,16 @@ 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
  */
 #define	SPECHSZ	64
 #if	((SPECHSZ&(SPECHSZ-1)) == 0)
-#define	SPECHASH(rdev)	(((rdev>>5)+(rdev))&(SPECHSZ-1))
+#define	SPECHASH(rdev)	(((rdev>>21)+(rdev))&(SPECHSZ-1))
 #else
-#define	SPECHASH(rdev)	(((unsigned)((rdev>>5)+(rdev)))%SPECHSZ)
+#define	SPECHASH(rdev)	(((unsigned)((rdev>>21)+(rdev)))%SPECHSZ)
 #endif
 
 extern struct vnode *speclisth[SPECHSZ];
@@ -112,11 +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 *);
@@ -134,7 +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
@@ -155,10 +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_devblocksize (struct vnop_devblocksize_args *);
-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_ */