date and time created 92/06/03 14:19:08 by pendry

SCCS-vsn: sys/deprecated/lofs/lofs.h 1.1

diff --git a/usr/src/sys/deprecated/lofs/lofs.h b/usr/src/sys/deprecated/lofs/lofs.h
new file mode 100644 (file)
index 0000000..721c1d2
--- /dev/null
+++ b/usr/src/sys/deprecated/lofs/lofs.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 1992 The Regents of the University of California
+ * Copyright (c) 1990, 1992 Jan-Simon Pendry
+ * All rights reserved.
+ *
+ * This code is derived from software donated to Berkeley by
+ * Jan-Simon Pendry.
+ *
+ * %sccs.include.redist.c%
+ *
+ *     @(#)lofs.h      1.1 (Berkeley) %G%
+ *
+ * $Id: lofs.h,v 1.8 1992/05/30 10:05:43 jsp Exp jsp $
+ */
+
+struct lofs_args {
+       char            *target;        /* Target of loopback  */
+};
+
+struct lofsmount {
+       struct mount    *looped_vfs;
+       struct vnode    *rootvp;        /* Reference to root lofsnode */
+};
+
+#ifdef KERNEL
+/*
+ * A cache of vnode references
+ */
+struct lofsnode {
+       struct lofsnode *a_forw;        /* Hash chain */
+       struct lofsnode *a_back;
+       struct vnode    *a_lofsvp;      /* Aliased vnode - VREFed once */
+       struct vnode    *a_vnode;       /* Back pointer to vnode/lofsnode */
+};
+
+extern int make_lofs __P((struct mount *mp, struct vnode **vpp));
+
+#define        VFSTOLOFS(mp) ((struct lofsmount *)((mp)->mnt_data))
+#define        LOFSP(vp) ((struct lofsnode *)(vp)->v_data)
+#ifdef LOFS_DIAGNOSTIC
+extern struct vnode *lofs_checkvp __P((struct vnode *vp, char *fil, int lno));
+#define        LOFSVP(vp) lofs_checkvp(vp, __FILE__, __LINE__)
+#else
+#define        LOFSVP(vp) (LOFSP(vp)->a_lofsvp)
+#endif
+
+extern int (**lofs_vnodeop_p)();
+extern struct vfsops lofs_vfsops;
+#endif /* KERNEL */