/* $OpenBSD: ffs_vnops.c,v 1.3 1996/05/22 11:47:18 deraadt Exp $ */ /* $NetBSD: ffs_vnops.c,v 1.7 1996/05/11 18:27:24 mycroft Exp $ */ /* * Copyright (c) 1982, 1986, 1989, 1993 * The Regents of the University of California. 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 University of * California, Berkeley and its contributors. * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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. * * @(#)ffs_vnops.c 8.10 (Berkeley) 8/10/94 */ #include <sys/param.h> #include <sys/systm.h> #include <sys/resourcevar.h> #include <sys/kernel.h> #include <sys/file.h> #include <sys/stat.h> #include <sys/buf.h> #include <sys/proc.h> #include <sys/conf.h> #include <sys/mount.h> #include <sys/vnode.h> #include <sys/malloc.h> #include <sys/signalvar.h> #include <vm/vm.h> #include <miscfs/specfs/specdev.h> #include <miscfs/fifofs/fifo.h> #include <ufs/ufs/quota.h> #include <ufs/ufs/inode.h> #include <ufs/ufs/dir.h> #include <ufs/ufs/ufs_extern.h> #include <ufs/ufs/ufsmount.h> #include <ufs/ffs/fs.h> #include <ufs/ffs/ffs_extern.h> /* Global vfs data structures for ufs. */ int (**ffs_vnodeop_p) __P((void *)); struct vnodeopv_entry_desc ffs_vnodeop_entries[] = { { &vop_default_desc, vn_default_error }, { &vop_lookup_desc, ufs_lookup }, /* lookup */ { &vop_create_desc, ufs_create }, /* create */ { &vop_whiteout_desc, ufs_whiteout }, /* whiteout */ { &vop_mknod_desc, ufs_mknod }, /* mknod */ { &vop_open_desc, ufs_open }, /* open */ { &vop_close_desc, ufs_close }, /* close */ { &vop_access_desc, ufs_access }, /* access */ { &vop_getattr_desc, ufs_getattr }, /* getattr */ { &vop_setattr_desc, ufs_setattr }, /* setattr */ { &vop_read_desc, ffs_read }, /* read */ { &vop_write_desc, ffs_write }, /* write */ { &vop_lease_desc, ufs_lease_check }, /* lease */ { &vop_ioctl_desc, ufs_ioctl }, /* ioctl */ { &vop_select_desc, ufs_select }, /* select */ { &vop_mmap_desc, ufs_mmap }, /* mmap */ { &vop_fsync_desc, ffs_fsync }, /* fsync */ { &vop_seek_desc, ufs_seek }, /* seek */ { &vop_remove_desc, ufs_remove }, /* remove */ { &vop_link_desc, ufs_link }, /* link */ { &vop_rename_desc, ufs_rename }, /* rename */ { &vop_mkdir_desc, ufs_mkdir }, /* mkdir */ { &vop_rmdir_desc, ufs_rmdir }, /* rmdir */ { &vop_symlink_desc, ufs_symlink }, /* symlink */ { &vop_readdir_desc, ufs_readdir }, /* readdir */ { &vop_readlink_desc, ufs_readlink }, /* readlink */ { &vop_abortop_desc, ufs_abortop }, /* abortop */ { &vop_inactive_desc, ufs_inactive }, /* inactive */ { &vop_reclaim_desc, ffs_reclaim }, /* reclaim */ { &vop_lock_desc, ufs_lock }, /* lock */ { &vop_unlock_desc, ufs_unlock }, /* unlock */ { &vop_bmap_desc, ufs_bmap }, /* bmap */ { &vop_strategy_desc, ufs_strategy }, /* strategy */ { &vop_print_desc, ufs_print }, /* print */ { &vop_islocked_desc, ufs_islocked }, /* islocked */ { &vop_pathconf_desc, ufs_pathconf }, /* pathconf */ { &vop_advlock_desc, ufs_advlock }, /* advlock */ { &vop_blkatoff_desc, ffs_blkatoff }, /* blkatoff */ { &vop_valloc_desc, ffs_valloc }, /* valloc */ { &vop_reallocblks_desc, ffs_reallocblks }, /* reallocblks */ { &vop_vfree_desc, ffs_vfree }, /* vfree */ { &vop_truncate_desc, ffs_truncate }, /* truncate */ { &vop_update_desc, ffs_update }, /* update */ { &vop_bwrite_desc, vn_bwrite }, { (struct vnodeop_desc*)NULL, (int(*) __P((void*)))NULL } }; struct vnodeopv_desc ffs_vnodeop_opv_desc = { &ffs_vnodeop_p, ffs_vnodeop_entries }; int (**ffs_specop_p) __P((void *)); struct vnodeopv_entry_desc ffs_specop_entries[] = { { &vop_default_desc, vn_default_error }, { &vop_lookup_desc, spec_lookup }, /* lookup */ { &vop_create_desc, spec_create }, /* create */ { &vop_mknod_desc, spec_mknod }, /* mknod */ { &vop_open_desc, spec_open }, /* open */ { &vop_close_desc, ufsspec_close }, /* close */ { &vop_access_desc, ufs_access }, /* access */ { &vop_getattr_desc, ufs_getattr }, /* getattr */ { &vop_setattr_desc, ufs_setattr }, /* setattr */ { &vop_read_desc, ufsspec_read }, /* read */ { &vop_write_desc, ufsspec_write }, /* write */ { &vop_lease_desc, spec_lease_check }, /* lease */ { &vop_ioctl_desc, spec_ioctl }, /* ioctl */ { &vop_select_desc, spec_select }, /* select */ { &vop_mmap_desc, spec_mmap }, /* mmap */ { &vop_fsync_desc, ffs_fsync }, /* fsync */ { &vop_seek_desc, spec_seek }, /* seek */ { &vop_remove_desc, spec_remove }, /* remove */ { &vop_link_desc, spec_link }, /* link */ { &vop_rename_desc, spec_rename }, /* rename */ { &vop_mkdir_desc, spec_mkdir }, /* mkdir */ { &vop_rmdir_desc, spec_rmdir }, /* rmdir */ { &vop_symlink_desc, spec_symlink }, /* symlink */ { &vop_readdir_desc, spec_readdir }, /* readdir */ { &vop_readlink_desc, spec_readlink }, /* readlink */ { &vop_abortop_desc, spec_abortop }, /* abortop */ { &vop_inactive_desc, ufs_inactive }, /* inactive */ { &vop_reclaim_desc, ffs_reclaim }, /* reclaim */ { &vop_lock_desc, ufs_lock }, /* lock */ { &vop_unlock_desc, ufs_unlock }, /* unlock */ { &vop_bmap_desc, spec_bmap }, /* bmap */ { &vop_strategy_desc, spec_strategy }, /* strategy */ { &vop_print_desc, ufs_print }, /* print */ { &vop_islocked_desc, ufs_islocked }, /* islocked */ { &vop_pathconf_desc, spec_pathconf }, /* pathconf */ { &vop_advlock_desc, spec_advlock }, /* advlock */ { &vop_blkatoff_desc, spec_blkatoff }, /* blkatoff */ { &vop_valloc_desc, spec_valloc }, /* valloc */ { &vop_reallocblks_desc, spec_reallocblks }, /* reallocblks */ { &vop_vfree_desc, ffs_vfree }, /* vfree */ { &vop_truncate_desc, spec_truncate }, /* truncate */ { &vop_update_desc, ffs_update }, /* update */ { &vop_bwrite_desc, vn_bwrite }, { (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL } }; struct vnodeopv_desc ffs_specop_opv_desc = { &ffs_specop_p, ffs_specop_entries }; #ifdef FIFO int (**ffs_fifoop_p) __P((void *)); struct vnodeopv_entry_desc ffs_fifoop_entries[] = { { &vop_default_desc, vn_default_error }, { &vop_lookup_desc, fifo_lookup }, /* lookup */ { &vop_create_desc, fifo_create }, /* create */ { &vop_mknod_desc, fifo_mknod }, /* mknod */ { &vop_open_desc, fifo_open }, /* open */ { &vop_close_desc, ufsfifo_close }, /* close */ { &vop_access_desc, ufs_access }, /* access */ { &vop_getattr_desc, ufs_getattr }, /* getattr */ { &vop_setattr_desc, ufs_setattr }, /* setattr */ { &vop_read_desc, ufsfifo_read }, /* read */ { &vop_write_desc, ufsfifo_write }, /* write */ { &vop_lease_desc, fifo_lease_check }, /* lease */ { &vop_ioctl_desc, fifo_ioctl }, /* ioctl */ { &vop_select_desc, fifo_select }, /* select */ { &vop_mmap_desc, fifo_mmap }, /* mmap */ { &vop_fsync_desc, ffs_fsync }, /* fsync */ { &vop_seek_desc, fifo_seek }, /* seek */ { &vop_remove_desc, fifo_remove }, /* remove */ { &vop_link_desc, fifo_link }, /* link */ { &vop_rename_desc, fifo_rename }, /* rename */ { &vop_mkdir_desc, fifo_mkdir }, /* mkdir */ { &vop_rmdir_desc, fifo_rmdir }, /* rmdir */ { &vop_symlink_desc, fifo_symlink }, /* symlink */ { &vop_readdir_desc, fifo_readdir }, /* readdir */ { &vop_readlink_desc, fifo_readlink }, /* readlink */ { &vop_abortop_desc, fifo_abortop }, /* abortop */ { &vop_inactive_desc, ufs_inactive }, /* inactive */ { &vop_reclaim_desc, ffs_reclaim }, /* reclaim */ { &vop_lock_desc, ufs_lock }, /* lock */ { &vop_unlock_desc, ufs_unlock }, /* unlock */ { &vop_bmap_desc, fifo_bmap }, /* bmap */ { &vop_strategy_desc, fifo_strategy }, /* strategy */ { &vop_print_desc, ufs_print }, /* print */ { &vop_islocked_desc, ufs_islocked }, /* islocked */ { &vop_pathconf_desc, fifo_pathconf }, /* pathconf */ { &vop_advlock_desc, fifo_advlock }, /* advlock */ { &vop_blkatoff_desc, fifo_blkatoff }, /* blkatoff */ { &vop_valloc_desc, fifo_valloc }, /* valloc */ { &vop_reallocblks_desc, fifo_reallocblks }, /* reallocblks */ { &vop_vfree_desc, ffs_vfree }, /* vfree */ { &vop_truncate_desc, fifo_truncate }, /* truncate */ { &vop_update_desc, ffs_update }, /* update */ { &vop_bwrite_desc, vn_bwrite }, { (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL } }; struct vnodeopv_desc ffs_fifoop_opv_desc = { &ffs_fifoop_p, ffs_fifoop_entries }; #endif /* FIFO */ #ifdef DEBUG /* * Enabling cluster read/write operations. */ #include <sys/sysctl.h> int doclusterread = 1; struct ctldebug debug11 = { "doclusterread", &doclusterread }; int doclusterwrite = 1; struct ctldebug debug12 = { "doclusterwrite", &doclusterwrite }; #else /* XXX for ufs_readwrite */ #define doclusterread 1 #define doclusterwrite 1 #endif #include <ufs/ufs/ufs_readwrite.c> /* * Synch an open file. */ /* ARGSUSED */ int ffs_fsync(v) void *v; { struct vop_fsync_args /* { struct vnode *a_vp; struct ucred *a_cred; int a_waitfor; struct proc *a_p; } */ *ap = v; register struct vnode *vp = ap->a_vp; struct timespec ts; vflushbuf(vp, ap->a_waitfor == MNT_WAIT); TIMEVAL_TO_TIMESPEC(&time, &ts); return (VOP_UPDATE(ap->a_vp, &ts, &ts, ap->a_waitfor == MNT_WAIT)); } /* * Reclaim an inode so that it can be used for other purposes. */ int ffs_reclaim(v) void *v; { struct vop_reclaim_args /* { struct vnode *a_vp; } */ *ap = v; register struct vnode *vp = ap->a_vp; int error; if ((error = ufs_reclaim(vp)) != 0) return (error); FREE(vp->v_data, VFSTOUFS(vp->v_mount)->um_devvp->v_tag == VT_MFS ? M_MFSNODE : M_FFSNODE); vp->v_data = NULL; return (0); }