1 | /* $NetBSD: genfs_vfsops.c,v 1.3 2009/11/30 10:59:20 pooka Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2008, 2009 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 1.3 2009/11/30 10:59:20 pooka Exp $" ); |
31 | |
32 | #include <sys/types.h> |
33 | #include <sys/mount.h> |
34 | #include <sys/statvfs.h> |
35 | #include <sys/vnode.h> |
36 | |
37 | #include <miscfs/genfs/genfs.h> |
38 | #include <miscfs/genfs/genfs_node.h> |
39 | |
40 | int |
41 | genfs_statvfs(struct mount *mp, struct statvfs *sbp) |
42 | { |
43 | |
44 | sbp->f_bsize = DEV_BSIZE; |
45 | sbp->f_frsize = DEV_BSIZE; |
46 | sbp->f_iosize = DEV_BSIZE; |
47 | sbp->f_blocks = 2; /* 1k to keep df happy */ |
48 | sbp->f_bfree = 0; |
49 | sbp->f_bavail = 0; |
50 | sbp->f_bresvd = 0; |
51 | sbp->f_files = 0; |
52 | sbp->f_ffree = 0; |
53 | sbp->f_favail = 0; |
54 | sbp->f_fresvd = 0; |
55 | copy_statvfs_info(sbp, mp); |
56 | |
57 | return 0; |
58 | } |
59 | |
60 | int |
61 | genfs_renamelock_enter(struct mount *mp) |
62 | { |
63 | mutex_enter(&mp->mnt_renamelock); |
64 | /* Preserve possible error return in case we become interruptible. */ |
65 | return 0; |
66 | } |
67 | |
68 | void |
69 | genfs_renamelock_exit(struct mount *mp) |
70 | { |
71 | mutex_exit(&mp->mnt_renamelock); |
72 | } |
73 | |