/* $OpenBSD: xfs_vfsops-openbsd.c,v 1.3 2000/03/03 00:54:59 todd Exp $ */ /* * Copyright (c) 1995, 1996, 1997, 1998, 1999 Kungliga Tekniska Högskolan * (Royal Institute of Technology, Stockholm, Sweden). * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the Kungliga Tekniska * Högskolan and its contributors. * * 4. Neither the name of the Institute nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include RCSID("$OpenBSD: xfs_vfsops-openbsd.c,v 1.3 2000/03/03 00:54:59 todd Exp $"); #include #include #include #include #include #include #include #include static vop_t **xfs_dead_vnodeop_p; int make_dead_vnode(struct mount *mp, struct vnode **vpp) { XFSDEB(XDEBNODE, ("make_dead_vnode mp = %p\n", mp)); return getnewvnode(VT_NON, mp, xfs_dead_vnodeop_p, vpp); } static struct vnodeopv_entry_desc xfs_dead_vnodeop_entries[] = { {&vop_default_desc, (vop_t *) xfs_eopnotsupp}, {&vop_lookup_desc, (vop_t *) xfs_dead_lookup}, {&vop_reclaim_desc, (vop_t *) xfs_returnzero}, {NULL, NULL}}; static struct vnodeopv_desc xfs_dead_vnodeop_opv_desc = {&xfs_dead_vnodeop_p, xfs_dead_vnodeop_entries}; extern struct vnodeopv_desc xfs_vnodeop_opv_desc; static int xfs_init(struct vfsconf *vfs) { XFSDEB(XDEBVFOPS, ("xfs_init\n")); vfs_opv_init_explicit(&xfs_vnodeop_opv_desc); vfs_opv_init_default(&xfs_vnodeop_opv_desc); vfs_opv_init_explicit(&xfs_dead_vnodeop_opv_desc); vfs_opv_init_default(&xfs_dead_vnodeop_opv_desc); return 0; } static int xfs_sysctl (int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp, size_t newlen, struct proc *p) { XFSDEB(XDEBVFOPS, ("xfs_sysctl\n")); return EOPNOTSUPP; } static int xfs_checkexp(struct mount *mp, struct mbuf *nam, int *exflagsp, struct ucred **credanonp) { XFSDEB(XDEBVFOPS, ("xfs_checkexp\n")); return (EOPNOTSUPP); } struct vfsops xfs_vfsops = { xfs_mount, xfs_start, xfs_unmount, xfs_root, xfs_quotactl, xfs_statfs, xfs_sync, xfs_vget, xfs_fhtovp, xfs_vptofh, xfs_init, xfs_sysctl, xfs_checkexp }; static struct vfsconf xfs_vfc = { &xfs_vfsops, "xfs", 0, 0, 0, NULL, NULL }; #ifndef HAVE_KERNEL_VFS_REGISTER static int vfs_register (struct vfsconf *vfs) { struct vfsconf *vfsp; struct vfsconf **vfspp; /* Check if filesystem already known */ for (vfspp = &vfsconf, vfsp = vfsconf; vfsp; vfspp = &vfsp->vfc_next, vfsp = vfsp->vfc_next) if (strcmp(vfsp->vfc_name, vfs->vfc_name) == 0) return (EEXIST); maxvfsconf++; /* Add to the end of the list */ *vfspp = vfs; vfs->vfc_next = NULL; /* Call vfs_init() */ XFSDEB(XDEBVFOPS, ("calling vfs_init\n")); (*(vfs->vfc_vfsops->vfs_init)) (vfs); /* done! */ return 0; } static int vfs_unregister (struct vfsconf *vfs) { struct vfsconf *vfsp; struct vfsconf **vfspp; /* Find our vfsconf struct */ for (vfspp = &vfsconf, vfsp = vfsconf; vfsp; vfspp = &vfsp->vfc_next, vfsp = vfsp->vfc_next) if (strcmp(vfsp->vfc_name, vfs->vfc_name) == 0) break; if (!vfsp) /* Not found */ return (ENOENT); if (vfsp->vfc_refcount) /* In use */ return (EBUSY); /* Remove from list and free */ *vfspp = vfsp->vfc_next; maxvfsconf--; return 0; } #endif int xfs_install_filesys(void) { return vfs_register (&xfs_vfc); } int xfs_uninstall_filesys(void) { return vfs_unregister (&xfs_vfc); } int xfs_stat_filesys (void) { return 0; }