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genfs_vfsops.c revision 1.1.10.1 
      1 /*	$NetBSD: genfs_vfsops.c,v 1.1.10.1 2008/06/02 13:24:20 mjf Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2008 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: genfs_vfsops.c,v 1.1.10.1 2008/06/02 13:24:20 mjf Exp $");
     31 
     32 #include <sys/types.h>
     33 #include <sys/mount.h>
     34 
     35 /* required by genfs.h */
     36 #include <uvm/uvm.h>
     37 
     38 #include <miscfs/genfs/genfs.h>
     39 #include <miscfs/genfs/genfs_node.h>
     40 
     41 int
     42 genfs_renamelock_enter(struct mount *mp)
     43 {
     44 	mutex_enter(&mp->mnt_renamelock);
     45 	/* Preserve possible error return in case we become interruptible. */
     46 	return 0;
     47 }
     48 
     49 void
     50 genfs_renamelock_exit(struct mount *mp)
     51 {
     52 	mutex_exit(&mp->mnt_renamelock);
     53 }
     54