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