1 files changed, 72 insertions, 0 deletions
diff --git a/usr/src/uts/common/sys/fs/lofs_node.h b/usr/src/uts/common/sys/fs/lofs_node.h
new file mode 100644
index 0000000000..208d575137
--- /dev/null
+++ b/usr/src/uts/common/sys/fs/lofs_node.h
@@ -0,0 +1,72 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 1989-1991, 2003 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*
+ * Loop-back file information structure.
+ */
+
+#ifndef _SYS_FS_LOFS_NODE_H
+#define	_SYS_FS_LOFS_NODE_H
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <sys/fs/lofs_info.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+/*
+ * The lnode is the "inode" for loop-back files.  It contains
+ * all the information necessary to handle loop-back file on the
+ * client side.
+ */
+typedef struct lnode {
+	struct lnode	*lo_next;	/* link for hash chain */
+	struct vnode	*lo_vp;		/* pointer to real vnode */
+	uint_t		lo_looping; 	/* detect looping */
+	struct vnode	*lo_vnode;	/* place holder vnode for file */
+} lnode_t;
+
+/*
+ * Convert between vnode and lnode
+ */
+#define	ltov(lp)	(((lp)->lo_vnode))
+#define	vtol(vp)	((struct lnode *)((vp)->v_data))
+#define	realvp(vp)	(vtol(vp)->lo_vp)
+
+#ifdef _KERNEL
+extern vnode_t *makelonode(vnode_t *, struct loinfo *);
+extern void freelonode(lnode_t *);
+
+extern struct vnode kvp;
+#endif /* _KERNEL */
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* _SYS_FS_LOFS_NODE_H */