-Wall.
This commit is contained in:
parent
46fc8f78df
commit
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=37428
@ -35,7 +35,7 @@
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.\" SUCH DAMAGE.
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.\" SUCH DAMAGE.
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.\"
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.\"
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.\" @(#)mount_null.8 8.6 (Berkeley) 5/1/95
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.\" @(#)mount_null.8 8.6 (Berkeley) 5/1/95
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.\" $Id: mount_null.8,v 1.7 1997/02/22 14:32:50 peter Exp $
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.\" $Id: mount_null.8,v 1.8 1997/03/11 12:33:34 peter Exp $
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.\"
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.\"
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.Dd May 1, 1995
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.Dd May 1, 1995
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.Dt MOUNT_NULL 8
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.Dt MOUNT_NULL 8
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@ -51,7 +51,7 @@ demonstrate the use of a null file system layer
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.Ar mount-point
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.Ar mount-point
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.Sh DESCRIPTION
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.Sh DESCRIPTION
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The
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The
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.Nm mount_null
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.Nm
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command creates a
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command creates a
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null layer, duplicating a sub-tree of the file system
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null layer, duplicating a sub-tree of the file system
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name space under another part of the global file system namespace.
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name space under another part of the global file system namespace.
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@ -68,7 +68,7 @@ A different device number for the virtual copy is returned by
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but in other respects it is indistinguishable from the original.
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but in other respects it is indistinguishable from the original.
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.Pp
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.Pp
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The
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The
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.Nm mount_null
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.Nm
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filesystem differs from a traditional
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filesystem differs from a traditional
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loopback file system in two respects: it is implemented using
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loopback file system in two respects: it is implemented using
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a stackable layers techniques, and it's
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a stackable layers techniques, and it's
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@ -189,7 +189,9 @@ process when constructing other vnode stacks.
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.Sh CREATING OTHER FILE SYSTEM LAYERS
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.Sh CREATING OTHER FILE SYSTEM LAYERS
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One of the easiest ways to construct new file system layers is to make
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One of the easiest ways to construct new file system layers is to make
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a copy of the null layer, rename all files and variables, and
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a copy of the null layer, rename all files and variables, and
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then begin modifying the copy. Sed can be used to easily rename
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then begin modifying the copy.
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.Xr Sed 1
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can be used to easily rename
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all variables.
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all variables.
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.Pp
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.Pp
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The umap layer is an example of a layer descended from the
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The umap layer is an example of a layer descended from the
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@ -228,6 +230,6 @@ UCLA Technical Report CSD-910056,
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.Em "Stackable Layers: an Architecture for File System Development" .
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.Em "Stackable Layers: an Architecture for File System Development" .
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.Sh HISTORY
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.Sh HISTORY
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The
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The
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.Nm mount_null
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.Nm
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utility first appeared in
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utility first appeared in
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.Bx 4.4 .
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.Bx 4.4 .
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@ -35,17 +35,17 @@
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*/
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*/
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#ifndef lint
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#ifndef lint
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char copyright[] =
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static const char copyright[] =
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"@(#) Copyright (c) 1992, 1993, 1994\n\
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"@(#) Copyright (c) 1992, 1993, 1994\n\
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The Regents of the University of California. All rights reserved.\n";
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#endif /* not lint */
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#ifndef lint
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#ifndef lint
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/*
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#if 0
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static char sccsid[] = "@(#)mount_null.c 8.6 (Berkeley) 4/26/95";
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static char sccsid[] = "@(#)mount_null.c 8.6 (Berkeley) 4/26/95";
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*/
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#endif
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static const char rcsid[] =
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static const char rcsid[] =
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"$Id: mount_null.c,v 1.9 1997/03/29 03:32:42 imp Exp $";
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"$Id$";
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#endif /* not lint */
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/param.h>
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@ -35,7 +35,7 @@
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.\" SUCH DAMAGE.
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.\" SUCH DAMAGE.
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.\"
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.\"
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.\" @(#)mount_null.8 8.6 (Berkeley) 5/1/95
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.\" @(#)mount_null.8 8.6 (Berkeley) 5/1/95
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.\" $Id: mount_null.8,v 1.7 1997/02/22 14:32:50 peter Exp $
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.\" $Id: mount_null.8,v 1.8 1997/03/11 12:33:34 peter Exp $
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.\"
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.\"
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.Dd May 1, 1995
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.Dd May 1, 1995
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.Dt MOUNT_NULL 8
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.Dt MOUNT_NULL 8
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@ -51,7 +51,7 @@ demonstrate the use of a null file system layer
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.Ar mount-point
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.Ar mount-point
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.Sh DESCRIPTION
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.Sh DESCRIPTION
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The
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The
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.Nm mount_null
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.Nm
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command creates a
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command creates a
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null layer, duplicating a sub-tree of the file system
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null layer, duplicating a sub-tree of the file system
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name space under another part of the global file system namespace.
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name space under another part of the global file system namespace.
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@ -68,7 +68,7 @@ A different device number for the virtual copy is returned by
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but in other respects it is indistinguishable from the original.
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but in other respects it is indistinguishable from the original.
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.Pp
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.Pp
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The
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The
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.Nm mount_null
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.Nm
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filesystem differs from a traditional
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filesystem differs from a traditional
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loopback file system in two respects: it is implemented using
|
loopback file system in two respects: it is implemented using
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a stackable layers techniques, and it's
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a stackable layers techniques, and it's
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@ -189,7 +189,9 @@ process when constructing other vnode stacks.
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.Sh CREATING OTHER FILE SYSTEM LAYERS
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.Sh CREATING OTHER FILE SYSTEM LAYERS
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One of the easiest ways to construct new file system layers is to make
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One of the easiest ways to construct new file system layers is to make
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a copy of the null layer, rename all files and variables, and
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a copy of the null layer, rename all files and variables, and
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then begin modifying the copy. Sed can be used to easily rename
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then begin modifying the copy.
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.Xr Sed 1
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can be used to easily rename
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all variables.
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all variables.
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.Pp
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.Pp
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The umap layer is an example of a layer descended from the
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The umap layer is an example of a layer descended from the
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@ -228,6 +230,6 @@ UCLA Technical Report CSD-910056,
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.Em "Stackable Layers: an Architecture for File System Development" .
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.Em "Stackable Layers: an Architecture for File System Development" .
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.Sh HISTORY
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.Sh HISTORY
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The
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The
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.Nm mount_null
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.Nm
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utility first appeared in
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utility first appeared in
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.Bx 4.4 .
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.Bx 4.4 .
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@ -35,17 +35,17 @@
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*/
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*/
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#ifndef lint
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#ifndef lint
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char copyright[] =
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static const char copyright[] =
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"@(#) Copyright (c) 1992, 1993, 1994\n\
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"@(#) Copyright (c) 1992, 1993, 1994\n\
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The Regents of the University of California. All rights reserved.\n";
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#endif /* not lint */
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#ifndef lint
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#ifndef lint
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/*
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#if 0
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static char sccsid[] = "@(#)mount_null.c 8.6 (Berkeley) 4/26/95";
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static char sccsid[] = "@(#)mount_null.c 8.6 (Berkeley) 4/26/95";
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*/
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#endif
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static const char rcsid[] =
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static const char rcsid[] =
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"$Id: mount_null.c,v 1.9 1997/03/29 03:32:42 imp Exp $";
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"$Id$";
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#endif /* not lint */
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/param.h>
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