From b71fec07dbcbbd6b5665aef535e57fa10a3e910c Mon Sep 17 00:00:00 2001
From: Bruce Evans <bde@FreeBSD.org>
Date: Tue, 3 Sep 1996 14:25:27 +0000
Subject: [PATCH] Eliminated nested include of <sys/unistd.h> in <sys/file.h>
 in the kernel. Include it directly in the few places where it is used.

Reduced some #includes of <sys/file.h> to #includes of <sys/fcntl.h> or
nothing.
---
 sys/fs/fdescfs/fdesc_vnops.c     | 3 ++-
 sys/fs/fifofs/fifo_vnops.c       | 3 ++-
 sys/fs/msdosfs/msdosfs_vnops.c   | 4 ++--
 sys/fs/portalfs/portal_vnops.c   | 3 ++-
 sys/fs/procfs/procfs_vnops.c     | 5 +++--
 sys/fs/specfs/spec_vnops.c       | 5 +++--
 sys/kern/kern_fork.c             | 4 ++--
 sys/kern/kern_lockf.c            | 4 ++--
 sys/kern/vfs_extattr.c           | 3 ++-
 sys/kern/vfs_syscalls.c          | 3 ++-
 sys/miscfs/devfs/devfs_vnops.c   | 4 ++--
 sys/miscfs/fdesc/fdesc_vnops.c   | 3 ++-
 sys/miscfs/fifofs/fifo_vnops.c   | 3 ++-
 sys/miscfs/kernfs/kernfs_vnops.c | 5 +++--
 sys/miscfs/portal/portal_vnops.c | 3 ++-
 sys/miscfs/procfs/procfs_vnops.c | 5 +++--
 sys/miscfs/specfs/spec_vnops.c   | 5 +++--
 sys/msdosfs/msdosfs_vnops.c      | 4 ++--
 sys/nfs/nfs_serv.c               | 4 ++--
 sys/nfsserver/nfs_serv.c         | 4 ++--
 sys/sys/file.h                   | 8 +++++---
 sys/ufs/ufs/ufs_vnops.c          | 5 +++--
 22 files changed, 53 insertions(+), 37 deletions(-)

diff --git a/sys/fs/fdescfs/fdesc_vnops.c b/sys/fs/fdescfs/fdesc_vnops.c
index 27adb432f0f..8b08090a830 100644
--- a/sys/fs/fdescfs/fdesc_vnops.c
+++ b/sys/fs/fdescfs/fdesc_vnops.c
@@ -35,7 +35,7 @@
  *
  *	@(#)fdesc_vnops.c	8.9 (Berkeley) 1/21/94
  *
- * $Id: fdesc_vnops.c,v 1.16 1996/06/12 03:37:02 davidg Exp $
+ * $Id: fdesc_vnops.c,v 1.17 1996/06/12 05:09:52 gpalmer Exp $
  */
 
 /*
@@ -48,6 +48,7 @@
 #include <sys/kernel.h>	/* boottime */
 #include <sys/resourcevar.h>
 #include <sys/filedesc.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <sys/malloc.h>
 #include <sys/file.h>
diff --git a/sys/fs/fifofs/fifo_vnops.c b/sys/fs/fifofs/fifo_vnops.c
index e6f1feed14d..ded0d5f8536 100644
--- a/sys/fs/fifofs/fifo_vnops.c
+++ b/sys/fs/fifofs/fifo_vnops.c
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)fifo_vnops.c	8.2 (Berkeley) 1/4/94
- * $Id: fifo_vnops.c,v 1.15 1995/12/14 09:53:03 phk Exp $
+ * $Id: fifo_vnops.c,v 1.16 1996/02/13 18:16:23 wollman Exp $
  */
 
 #include <sys/param.h>
@@ -39,6 +39,7 @@
 #include <sys/proc.h>
 #include <sys/time.h>
 #include <sys/namei.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <sys/socket.h>
 #include <sys/socketvar.h>
diff --git a/sys/fs/msdosfs/msdosfs_vnops.c b/sys/fs/msdosfs/msdosfs_vnops.c
index 83efc305f6f..bdd399f9606 100644
--- a/sys/fs/msdosfs/msdosfs_vnops.c
+++ b/sys/fs/msdosfs/msdosfs_vnops.c
@@ -1,4 +1,4 @@
-/*	$Id: msdosfs_vnops.c,v 1.30 1995/12/07 12:47:20 davidg Exp $ */
+/*	$Id: msdosfs_vnops.c,v 1.31 1996/06/14 11:01:41 asami Exp $ */
 /*	$NetBSD: msdosfs_vnops.c,v 1.20 1994/08/21 18:44:13 ws Exp $	*/
 
 /*-
@@ -53,11 +53,11 @@
 #include <sys/namei.h>
 #include <sys/resourcevar.h>	/* defines plimit structure in proc struct */
 #include <sys/kernel.h>
-#include <sys/file.h>		/* define FWRITE ... */
 #include <sys/stat.h>
 #include <sys/buf.h>
 #include <sys/proc.h>
 #include <sys/mount.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <miscfs/specfs/specdev.h> /* XXX */	/* defines v_rdev */
 #include <sys/malloc.h>
diff --git a/sys/fs/portalfs/portal_vnops.c b/sys/fs/portalfs/portal_vnops.c
index e1ae9041623..a9d7328b43c 100644
--- a/sys/fs/portalfs/portal_vnops.c
+++ b/sys/fs/portalfs/portal_vnops.c
@@ -35,7 +35,7 @@
  *
  *	@(#)portal_vnops.c	8.8 (Berkeley) 1/21/94
  *
- * $Id: portal_vnops.c,v 1.12 1996/06/12 03:37:29 davidg Exp $
+ * $Id: portal_vnops.c,v 1.13 1996/06/12 05:09:59 gpalmer Exp $
  */
 
 /*
@@ -50,6 +50,7 @@
 #include <sys/time.h>
 #include <sys/proc.h>
 #include <sys/filedesc.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <sys/file.h>
 #include <sys/stat.h>
diff --git a/sys/fs/procfs/procfs_vnops.c b/sys/fs/procfs/procfs_vnops.c
index 63259691735..cd1a550b460 100644
--- a/sys/fs/procfs/procfs_vnops.c
+++ b/sys/fs/procfs/procfs_vnops.c
@@ -36,7 +36,7 @@
  *
  *	@(#)procfs_vnops.c	8.6 (Berkeley) 2/7/94
  *
- *	$Id: procfs_vnops.c,v 1.22 1996/06/17 22:43:36 dyson Exp $
+ *	$Id: procfs_vnops.c,v 1.23 1996/06/18 05:16:00 dyson Exp $
  */
 
 /*
@@ -47,8 +47,9 @@
 #include <sys/systm.h>
 #include <sys/time.h>
 #include <sys/kernel.h>
-#include <sys/file.h>
+#include <sys/fcntl.h>
 #include <sys/proc.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <sys/namei.h>
 #include <sys/malloc.h>
diff --git a/sys/fs/specfs/spec_vnops.c b/sys/fs/specfs/spec_vnops.c
index 58241c2caff..6df8bad9685 100644
--- a/sys/fs/specfs/spec_vnops.c
+++ b/sys/fs/specfs/spec_vnops.c
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)spec_vnops.c	8.6 (Berkeley) 4/9/94
- * $Id: spec_vnops.c,v 1.30 1996/07/27 03:50:31 dyson Exp $
+ * $Id: spec_vnops.c,v 1.31 1996/08/21 21:55:33 dyson Exp $
  */
 
 #include <sys/param.h>
@@ -42,11 +42,12 @@
 #include <sys/buf.h>
 #include <sys/mount.h>
 #include <sys/namei.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <sys/stat.h>
 #include <sys/errno.h>
 #include <sys/ioctl.h>
-#include <sys/file.h>
+#include <sys/fcntl.h>
 #include <sys/disklabel.h>
 #include <sys/vmmeter.h>
 
diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c
index d037fbd8240..be883144899 100644
--- a/sys/kern/kern_fork.c
+++ b/sys/kern/kern_fork.c
@@ -36,7 +36,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)kern_fork.c	8.6 (Berkeley) 4/8/94
- * $Id: kern_fork.c,v 1.24 1996/08/19 02:28:24 julian Exp $
+ * $Id: kern_fork.c,v 1.25 1996/08/22 03:50:18 julian Exp $
  */
 
 #include "opt_ktrace.h"
@@ -50,9 +50,9 @@
 #include <sys/proc.h>
 #include <sys/resourcevar.h>
 #include <sys/vnode.h>
-#include <sys/file.h>
 #include <sys/acct.h>
 #include <sys/ktrace.h>
+#include <sys/unistd.h>	
 
 #include <vm/vm.h>
 #include <vm/vm_param.h>
diff --git a/sys/kern/kern_lockf.c b/sys/kern/kern_lockf.c
index 8566a1d0b56..98b324017ce 100644
--- a/sys/kern/kern_lockf.c
+++ b/sys/kern/kern_lockf.c
@@ -34,14 +34,14 @@
  * SUCH DAMAGE.
  *
  *	@(#)ufs_lockf.c	8.3 (Berkeley) 1/6/94
- * $Id: kern_lockf.c,v 1.4 1995/05/30 08:05:31 rgrimes Exp $
+ * $Id: kern_lockf.c,v 1.5 1995/12/14 08:31:26 phk Exp $
  */
 
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/kernel.h>
-#include <sys/file.h>
 #include <sys/proc.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <sys/malloc.h>
 #include <sys/fcntl.h>
diff --git a/sys/kern/vfs_extattr.c b/sys/kern/vfs_extattr.c
index 3870776201f..206796b13aa 100644
--- a/sys/kern/vfs_extattr.c
+++ b/sys/kern/vfs_extattr.c
@@ -36,7 +36,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)vfs_syscalls.c	8.13 (Berkeley) 4/15/94
- * $Id: vfs_syscalls.c,v 1.48 1996/05/24 16:19:23 peter Exp $
+ * $Id: vfs_syscalls.c,v 1.49 1996/09/03 07:09:03 davidg Exp $
  */
 
 /*
@@ -56,6 +56,7 @@
 #include <sys/kernel.h>
 #include <sys/file.h>
 #include <sys/stat.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <sys/mount.h>
 #include <sys/proc.h>
diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c
index 3870776201f..206796b13aa 100644
--- a/sys/kern/vfs_syscalls.c
+++ b/sys/kern/vfs_syscalls.c
@@ -36,7 +36,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)vfs_syscalls.c	8.13 (Berkeley) 4/15/94
- * $Id: vfs_syscalls.c,v 1.48 1996/05/24 16:19:23 peter Exp $
+ * $Id: vfs_syscalls.c,v 1.49 1996/09/03 07:09:03 davidg Exp $
  */
 
 /*
@@ -56,6 +56,7 @@
 #include <sys/kernel.h>
 #include <sys/file.h>
 #include <sys/stat.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <sys/mount.h>
 #include <sys/proc.h>
diff --git a/sys/miscfs/devfs/devfs_vnops.c b/sys/miscfs/devfs/devfs_vnops.c
index 0f7d3404029..8f457ac91e1 100644
--- a/sys/miscfs/devfs/devfs_vnops.c
+++ b/sys/miscfs/devfs/devfs_vnops.c
@@ -1,7 +1,7 @@
 /*
  *  Written by Julian Elischer (julian@DIALix.oz.au)
  *
- *	$Header: /home/ncvs/src/sys/miscfs/devfs/devfs_vnops.c,v 1.22 1996/08/13 07:21:45 julian Exp $
+ *	$Header: /home/ncvs/src/sys/miscfs/devfs/devfs_vnops.c,v 1.23 1996/08/13 19:48:41 julian Exp $
  *
  * symlinks can wait 'til later.
  */
@@ -11,11 +11,11 @@
 #include <sys/namei.h>
 #include <sys/resourcevar.h>	/* defines plimit structure in proc struct */
 #include <sys/kernel.h>
-#include <sys/file.h>		/* define FWRITE ... */
 #include <sys/stat.h>
 #include <sys/buf.h>
 #include <sys/proc.h>
 #include <sys/mount.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <miscfs/specfs/specdev.h>/* definitions of spec functions we use */
 #include <sys/malloc.h>
diff --git a/sys/miscfs/fdesc/fdesc_vnops.c b/sys/miscfs/fdesc/fdesc_vnops.c
index 27adb432f0f..8b08090a830 100644
--- a/sys/miscfs/fdesc/fdesc_vnops.c
+++ b/sys/miscfs/fdesc/fdesc_vnops.c
@@ -35,7 +35,7 @@
  *
  *	@(#)fdesc_vnops.c	8.9 (Berkeley) 1/21/94
  *
- * $Id: fdesc_vnops.c,v 1.16 1996/06/12 03:37:02 davidg Exp $
+ * $Id: fdesc_vnops.c,v 1.17 1996/06/12 05:09:52 gpalmer Exp $
  */
 
 /*
@@ -48,6 +48,7 @@
 #include <sys/kernel.h>	/* boottime */
 #include <sys/resourcevar.h>
 #include <sys/filedesc.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <sys/malloc.h>
 #include <sys/file.h>
diff --git a/sys/miscfs/fifofs/fifo_vnops.c b/sys/miscfs/fifofs/fifo_vnops.c
index e6f1feed14d..ded0d5f8536 100644
--- a/sys/miscfs/fifofs/fifo_vnops.c
+++ b/sys/miscfs/fifofs/fifo_vnops.c
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)fifo_vnops.c	8.2 (Berkeley) 1/4/94
- * $Id: fifo_vnops.c,v 1.15 1995/12/14 09:53:03 phk Exp $
+ * $Id: fifo_vnops.c,v 1.16 1996/02/13 18:16:23 wollman Exp $
  */
 
 #include <sys/param.h>
@@ -39,6 +39,7 @@
 #include <sys/proc.h>
 #include <sys/time.h>
 #include <sys/namei.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <sys/socket.h>
 #include <sys/socketvar.h>
diff --git a/sys/miscfs/kernfs/kernfs_vnops.c b/sys/miscfs/kernfs/kernfs_vnops.c
index c01ee098485..5841ed18119 100644
--- a/sys/miscfs/kernfs/kernfs_vnops.c
+++ b/sys/miscfs/kernfs/kernfs_vnops.c
@@ -34,7 +34,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)kernfs_vnops.c	8.6 (Berkeley) 2/10/94
- * $Id: kernfs_vnops.c,v 1.14 1995/12/03 14:54:16 bde Exp $
+ * $Id: kernfs_vnops.c,v 1.15 1996/07/03 03:48:46 phk Exp $
  */
 
 /*
@@ -48,9 +48,10 @@
 #include <sys/types.h>
 #include <sys/time.h>
 #include <sys/proc.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <sys/malloc.h>
-#include <sys/file.h>
+#include <sys/fcntl.h>
 #include <sys/stat.h>
 #include <sys/mount.h>
 #include <sys/namei.h>
diff --git a/sys/miscfs/portal/portal_vnops.c b/sys/miscfs/portal/portal_vnops.c
index e1ae9041623..a9d7328b43c 100644
--- a/sys/miscfs/portal/portal_vnops.c
+++ b/sys/miscfs/portal/portal_vnops.c
@@ -35,7 +35,7 @@
  *
  *	@(#)portal_vnops.c	8.8 (Berkeley) 1/21/94
  *
- * $Id: portal_vnops.c,v 1.12 1996/06/12 03:37:29 davidg Exp $
+ * $Id: portal_vnops.c,v 1.13 1996/06/12 05:09:59 gpalmer Exp $
  */
 
 /*
@@ -50,6 +50,7 @@
 #include <sys/time.h>
 #include <sys/proc.h>
 #include <sys/filedesc.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <sys/file.h>
 #include <sys/stat.h>
diff --git a/sys/miscfs/procfs/procfs_vnops.c b/sys/miscfs/procfs/procfs_vnops.c
index 63259691735..cd1a550b460 100644
--- a/sys/miscfs/procfs/procfs_vnops.c
+++ b/sys/miscfs/procfs/procfs_vnops.c
@@ -36,7 +36,7 @@
  *
  *	@(#)procfs_vnops.c	8.6 (Berkeley) 2/7/94
  *
- *	$Id: procfs_vnops.c,v 1.22 1996/06/17 22:43:36 dyson Exp $
+ *	$Id: procfs_vnops.c,v 1.23 1996/06/18 05:16:00 dyson Exp $
  */
 
 /*
@@ -47,8 +47,9 @@
 #include <sys/systm.h>
 #include <sys/time.h>
 #include <sys/kernel.h>
-#include <sys/file.h>
+#include <sys/fcntl.h>
 #include <sys/proc.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <sys/namei.h>
 #include <sys/malloc.h>
diff --git a/sys/miscfs/specfs/spec_vnops.c b/sys/miscfs/specfs/spec_vnops.c
index 58241c2caff..6df8bad9685 100644
--- a/sys/miscfs/specfs/spec_vnops.c
+++ b/sys/miscfs/specfs/spec_vnops.c
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)spec_vnops.c	8.6 (Berkeley) 4/9/94
- * $Id: spec_vnops.c,v 1.30 1996/07/27 03:50:31 dyson Exp $
+ * $Id: spec_vnops.c,v 1.31 1996/08/21 21:55:33 dyson Exp $
  */
 
 #include <sys/param.h>
@@ -42,11 +42,12 @@
 #include <sys/buf.h>
 #include <sys/mount.h>
 #include <sys/namei.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <sys/stat.h>
 #include <sys/errno.h>
 #include <sys/ioctl.h>
-#include <sys/file.h>
+#include <sys/fcntl.h>
 #include <sys/disklabel.h>
 #include <sys/vmmeter.h>
 
diff --git a/sys/msdosfs/msdosfs_vnops.c b/sys/msdosfs/msdosfs_vnops.c
index 83efc305f6f..bdd399f9606 100644
--- a/sys/msdosfs/msdosfs_vnops.c
+++ b/sys/msdosfs/msdosfs_vnops.c
@@ -1,4 +1,4 @@
-/*	$Id: msdosfs_vnops.c,v 1.30 1995/12/07 12:47:20 davidg Exp $ */
+/*	$Id: msdosfs_vnops.c,v 1.31 1996/06/14 11:01:41 asami Exp $ */
 /*	$NetBSD: msdosfs_vnops.c,v 1.20 1994/08/21 18:44:13 ws Exp $	*/
 
 /*-
@@ -53,11 +53,11 @@
 #include <sys/namei.h>
 #include <sys/resourcevar.h>	/* defines plimit structure in proc struct */
 #include <sys/kernel.h>
-#include <sys/file.h>		/* define FWRITE ... */
 #include <sys/stat.h>
 #include <sys/buf.h>
 #include <sys/proc.h>
 #include <sys/mount.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <miscfs/specfs/specdev.h> /* XXX */	/* defines v_rdev */
 #include <sys/malloc.h>
diff --git a/sys/nfs/nfs_serv.c b/sys/nfs/nfs_serv.c
index fa89b3511f0..116a2bac800 100644
--- a/sys/nfs/nfs_serv.c
+++ b/sys/nfs/nfs_serv.c
@@ -34,7 +34,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)nfs_serv.c	8.3 (Berkeley) 1/12/94
- * $Id: nfs_serv.c,v 1.30 1996/06/08 12:16:26 bde Exp $
+ * $Id: nfs_serv.c,v 1.31 1996/08/21 21:55:48 dyson Exp $
  */
 
 /*
@@ -60,8 +60,8 @@
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/proc.h>
-#include <sys/file.h>
 #include <sys/namei.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <sys/mount.h>
 #include <sys/socket.h>
diff --git a/sys/nfsserver/nfs_serv.c b/sys/nfsserver/nfs_serv.c
index fa89b3511f0..116a2bac800 100644
--- a/sys/nfsserver/nfs_serv.c
+++ b/sys/nfsserver/nfs_serv.c
@@ -34,7 +34,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)nfs_serv.c	8.3 (Berkeley) 1/12/94
- * $Id: nfs_serv.c,v 1.30 1996/06/08 12:16:26 bde Exp $
+ * $Id: nfs_serv.c,v 1.31 1996/08/21 21:55:48 dyson Exp $
  */
 
 /*
@@ -60,8 +60,8 @@
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/proc.h>
-#include <sys/file.h>
 #include <sys/namei.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <sys/mount.h>
 #include <sys/socket.h>
diff --git a/sys/sys/file.h b/sys/sys/file.h
index 24b7d54287d..1eaa9d2b253 100644
--- a/sys/sys/file.h
+++ b/sys/sys/file.h
@@ -31,14 +31,16 @@
  * SUCH DAMAGE.
  *
  *	@(#)file.h	8.3 (Berkeley) 1/9/95
- * $Id: file.h,v 1.8 1996/02/29 00:07:11 hsu Exp $
+ * $Id: file.h,v 1.7 1996/03/11 02:16:40 hsu Exp $
  */
 
 #ifndef _SYS_FILE_H_
-#define _SYS_FILE_H_
+#define	_SYS_FILE_H_
 
 #include <sys/fcntl.h>
+#ifndef KERNEL
 #include <sys/unistd.h>
+#endif
 
 #ifdef KERNEL
 #include <sys/queue.h>
@@ -84,4 +86,4 @@ extern int nfiles;		/* actual number of open files */
 
 #endif /* KERNEL */
 
-#endif
+#endif /* !SYS_FILE_H */
diff --git a/sys/ufs/ufs/ufs_vnops.c b/sys/ufs/ufs/ufs_vnops.c
index 2b8fd00b816..4084a11c7d7 100644
--- a/sys/ufs/ufs/ufs_vnops.c
+++ b/sys/ufs/ufs/ufs_vnops.c
@@ -36,7 +36,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)ufs_vnops.c	8.10 (Berkeley) 4/1/94
- * $Id: ufs_vnops.c,v 1.38 1996/03/29 12:30:30 bde Exp $
+ * $Id: ufs_vnops.c,v 1.39 1996/07/09 16:51:18 wollman Exp $
  */
 
 #include "opt_quota.h"
@@ -46,12 +46,13 @@
 #include <sys/namei.h>
 #include <sys/resourcevar.h>
 #include <sys/kernel.h>
-#include <sys/file.h>
+#include <sys/fcntl.h>
 #include <sys/stat.h>
 #include <sys/buf.h>
 #include <sys/proc.h>
 #include <sys/conf.h>
 #include <sys/mount.h>
+#include <sys/unistd.h>
 #include <sys/vnode.h>
 #include <sys/malloc.h>
 #include <sys/dirent.h>