| 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 | |