Annotation of sys/xfs/xfs_vfsops-openbsd.c, Revision 1.1
1.1 ! nbrk 1: /*
! 2: * Copyright (c) 1995 - 2001 Kungliga Tekniska Högskolan
! 3: * (Royal Institute of Technology, Stockholm, Sweden).
! 4: * All rights reserved.
! 5: *
! 6: * Redistribution and use in source and binary forms, with or without
! 7: * modification, are permitted provided that the following conditions
! 8: * are met:
! 9: *
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: *
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: *
! 17: * 3. Neither the name of the Institute nor the names of its contributors
! 18: * may be used to endorse or promote products derived from this software
! 19: * without specific prior written permission.
! 20: *
! 21: * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
! 22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 24: * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
! 25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 31: * SUCH DAMAGE.
! 32: */
! 33:
! 34: #include <xfs/xfs_locl.h>
! 35:
! 36: RCSID("$arla: xfs_vfsops-openbsd.c,v 1.16 2003/06/02 18:26:50 lha Exp $");
! 37:
! 38: #include <xfs/xfs_common.h>
! 39: #include <xfs/xfs_message.h>
! 40: #include <xfs/xfs_fs.h>
! 41: #include <xfs/xfs_dev.h>
! 42: #include <xfs/xfs_deb.h>
! 43: #include <xfs/xfs_vfsops.h>
! 44: #include <xfs/xfs_vfsops-bsd.h>
! 45: #include <xfs/xfs_vnodeops.h>
! 46:
! 47: static vop_t **xfs_dead_vnodeop_p;
! 48:
! 49: int
! 50: xfs_make_dead_vnode(struct mount *mp, struct vnode **vpp)
! 51: {
! 52: NNPFSDEB(XDEBNODE, ("make_dead_vnode mp = %lx\n",
! 53: (unsigned long)mp));
! 54:
! 55: return getnewvnode(VT_NON, mp, xfs_dead_vnodeop_p, vpp);
! 56: }
! 57:
! 58: static struct vnodeopv_entry_desc xfs_dead_vnodeop_entries[] = {
! 59: {&vop_default_desc, (vop_t *) xfs_eopnotsupp},
! 60: {&vop_lookup_desc, (vop_t *) xfs_dead_lookup},
! 61: {&vop_reclaim_desc, (vop_t *) xfs_returnzero},
! 62: {&vop_lock_desc, (vop_t *) vop_generic_lock},
! 63: {&vop_unlock_desc, (vop_t *) vop_generic_unlock},
! 64: {&vop_islocked_desc,(vop_t *) vop_generic_islocked},
! 65: {NULL, NULL}};
! 66:
! 67: static struct vnodeopv_desc xfs_dead_vnodeop_opv_desc =
! 68: {&xfs_dead_vnodeop_p, xfs_dead_vnodeop_entries};
! 69:
! 70: extern struct vnodeopv_desc xfs_vnodeop_opv_desc;
! 71:
! 72: static int
! 73: xfs_init(struct vfsconf *vfs)
! 74: {
! 75: NNPFSDEB(XDEBVFOPS, ("xfs_init\n"));
! 76: vfs_opv_init_explicit(&xfs_vnodeop_opv_desc);
! 77: vfs_opv_init_default(&xfs_vnodeop_opv_desc);
! 78: vfs_opv_init_explicit(&xfs_dead_vnodeop_opv_desc);
! 79: vfs_opv_init_default(&xfs_dead_vnodeop_opv_desc);
! 80: return 0;
! 81: }
! 82:
! 83: const struct vfsops xfs_vfsops = {
! 84: #ifdef HAVE_STRUCT_VFSOPS_VFS_MOUNT
! 85: xfs_mount_common,
! 86: #else
! 87: xfs_mount_caddr,
! 88: #endif
! 89: xfs_start,
! 90: xfs_unmount,
! 91: xfs_root,
! 92: xfs_quotactl,
! 93: xfs_statfs,
! 94: xfs_sync,
! 95: xfs_vget,
! 96: xfs_fhtovp,
! 97: xfs_vptofh,
! 98: xfs_init,
! 99: NULL,
! 100: #ifdef HAVE_STRUCT_VFSOPS_VFS_CHECKEXP
! 101: xfs_checkexp, /* checkexp */
! 102: #endif
! 103: };
! 104:
! 105: static struct vfsconf xfs_vfc = {
! 106: &xfs_vfsops,
! 107: "xfs",
! 108: 0,
! 109: 0,
! 110: 0,
! 111: NULL,
! 112: NULL
! 113: };
! 114:
! 115: #ifndef HAVE_KERNEL_VFS_REGISTER
! 116:
! 117: static int
! 118: vfs_register (struct vfsconf *vfs)
! 119: {
! 120: struct vfsconf *vfsp;
! 121: struct vfsconf **vfspp;
! 122:
! 123: /* Check if filesystem already known */
! 124: for (vfspp = &vfsconf, vfsp = vfsconf;
! 125: vfsp;
! 126: vfspp = &vfsp->vfc_next, vfsp = vfsp->vfc_next)
! 127: if (strcmp(vfsp->vfc_name, vfs->vfc_name) == 0)
! 128: return (EEXIST);
! 129:
! 130: maxvfsconf++;
! 131:
! 132: /* Add to the end of the list */
! 133: *vfspp = vfs;
! 134:
! 135: vfs->vfc_next = NULL;
! 136:
! 137: /* Call vfs_init() */
! 138: NNPFSDEB(XDEBVFOPS, ("calling vfs_init\n"));
! 139: (*(vfs->vfc_vfsops->vfs_init)) (vfs);
! 140:
! 141: /* done! */
! 142:
! 143: return 0;
! 144: }
! 145:
! 146: static int
! 147: vfs_unregister (struct vfsconf *vfs)
! 148: {
! 149: struct vfsconf *vfsp;
! 150: struct vfsconf **vfspp;
! 151:
! 152: /* Find our vfsconf struct */
! 153: for (vfspp = &vfsconf, vfsp = vfsconf;
! 154: vfsp;
! 155: vfspp = &vfsp->vfc_next, vfsp = vfsp->vfc_next)
! 156: if (strcmp(vfsp->vfc_name, vfs->vfc_name) == 0)
! 157: break;
! 158:
! 159: if (!vfsp) /* Not found */
! 160: return (ENOENT);
! 161:
! 162: if (vfsp->vfc_refcount) /* In use */
! 163: return (EBUSY);
! 164:
! 165: /* Remove from list and free */
! 166: *vfspp = vfsp->vfc_next;
! 167:
! 168: maxvfsconf--;
! 169:
! 170: return 0;
! 171: }
! 172:
! 173: #endif
! 174:
! 175: int
! 176: xfs_install_filesys(void)
! 177: {
! 178: return vfs_register (&xfs_vfc);
! 179: }
! 180:
! 181: int
! 182: xfs_uninstall_filesys(void)
! 183: {
! 184: return vfs_unregister (&xfs_vfc);
! 185: }
! 186:
! 187: int
! 188: xfs_stat_filesys (void)
! 189: {
! 190: return 0;
! 191: }
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