- Fix for possible unset uid/gid in toproto - Fix for default mtree style - Update libelf - Importing libexecinfo - Resynchronize GCC, mpc, gmp, mpfr - build.sh: Replace params with show-params. This has been done as the make target has been renamed in the same way, while a new target named params has been added. This new target generates a file containing all the parameters, instead of printing it on the console. - Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org) get getservbyport() out of the inner loop Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
2184 lines
54 KiB
C
2184 lines
54 KiB
C
/* $NetBSD: ffs_vfsops.c,v 1.291 2013/11/23 13:35:37 christos Exp $ */
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/*-
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* Copyright (c) 2008, 2009 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Wasabi Systems, Inc, and by Andrew Doran.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1989, 1991, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)ffs_vfsops.c 8.31 (Berkeley) 5/20/95
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ffs_vfsops.c,v 1.291 2013/11/23 13:35:37 christos Exp $");
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#if defined(_KERNEL_OPT)
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#include "opt_ffs.h"
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#include "opt_quota.h"
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#include "opt_wapbl.h"
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#endif
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/namei.h>
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#include <sys/proc.h>
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#include <sys/kernel.h>
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#include <sys/vnode.h>
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#include <sys/socket.h>
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#include <sys/mount.h>
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#include <sys/buf.h>
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#include <sys/device.h>
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#include <sys/disk.h>
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#include <sys/mbuf.h>
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#include <sys/file.h>
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#include <sys/disklabel.h>
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#include <sys/ioctl.h>
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#include <sys/errno.h>
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#include <sys/kmem.h>
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#include <sys/pool.h>
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#include <sys/lock.h>
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#include <sys/sysctl.h>
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#include <sys/conf.h>
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#include <sys/kauth.h>
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#include <sys/wapbl.h>
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#include <sys/fstrans.h>
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#include <sys/module.h>
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#include <miscfs/genfs/genfs.h>
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#include <miscfs/specfs/specdev.h>
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#include <ufs/ufs/quota.h>
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#include <ufs/ufs/ufsmount.h>
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#include <ufs/ufs/inode.h>
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#include <ufs/ufs/dir.h>
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#include <ufs/ufs/ufs_extern.h>
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#include <ufs/ufs/ufs_bswap.h>
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#include <ufs/ufs/ufs_wapbl.h>
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#include <ufs/ffs/fs.h>
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#include <ufs/ffs/ffs_extern.h>
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MODULE(MODULE_CLASS_VFS, ffs, NULL);
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static int ffs_vfs_fsync(vnode_t *, int);
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static struct sysctllog *ffs_sysctl_log;
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static kauth_listener_t ffs_snapshot_listener;
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/* how many times ffs_init() was called */
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int ffs_initcount = 0;
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extern const struct vnodeopv_desc ffs_vnodeop_opv_desc;
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extern const struct vnodeopv_desc ffs_specop_opv_desc;
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extern const struct vnodeopv_desc ffs_fifoop_opv_desc;
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const struct vnodeopv_desc * const ffs_vnodeopv_descs[] = {
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&ffs_vnodeop_opv_desc,
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&ffs_specop_opv_desc,
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&ffs_fifoop_opv_desc,
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NULL,
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};
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struct vfsops ffs_vfsops = {
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MOUNT_FFS,
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sizeof (struct ufs_args),
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ffs_mount,
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ufs_start,
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ffs_unmount,
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ufs_root,
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ufs_quotactl,
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ffs_statvfs,
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ffs_sync,
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ffs_vget,
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ffs_fhtovp,
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ffs_vptofh,
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ffs_init,
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ffs_reinit,
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ffs_done,
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ffs_mountroot,
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ffs_snapshot,
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ffs_extattrctl,
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ffs_suspendctl,
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genfs_renamelock_enter,
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genfs_renamelock_exit,
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ffs_vfs_fsync,
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ffs_vnodeopv_descs,
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0,
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{ NULL, NULL },
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};
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static const struct genfs_ops ffs_genfsops = {
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.gop_size = ffs_gop_size,
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.gop_alloc = ufs_gop_alloc,
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.gop_write = genfs_gop_write,
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.gop_markupdate = ufs_gop_markupdate,
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};
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static const struct ufs_ops ffs_ufsops = {
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.uo_itimes = ffs_itimes,
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.uo_update = ffs_update,
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.uo_truncate = ffs_truncate,
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.uo_valloc = ffs_valloc,
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.uo_vfree = ffs_vfree,
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.uo_balloc = ffs_balloc,
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.uo_snapgone = ffs_snapgone,
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};
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static int
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ffs_snapshot_cb(kauth_cred_t cred, kauth_action_t action, void *cookie,
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void *arg0, void *arg1, void *arg2, void *arg3)
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{
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vnode_t *vp = arg2;
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int result = KAUTH_RESULT_DEFER;;
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if (action != KAUTH_SYSTEM_FS_SNAPSHOT)
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return result;
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if (VTOI(vp)->i_uid == kauth_cred_geteuid(cred))
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result = KAUTH_RESULT_ALLOW;
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return result;
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}
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static int
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ffs_modcmd(modcmd_t cmd, void *arg)
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{
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int error;
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#if 0
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extern int doasyncfree;
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#endif
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#ifdef UFS_EXTATTR
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extern int ufs_extattr_autocreate;
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#endif
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extern int ffs_log_changeopt;
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switch (cmd) {
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case MODULE_CMD_INIT:
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error = vfs_attach(&ffs_vfsops);
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if (error != 0)
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break;
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sysctl_createv(&ffs_sysctl_log, 0, NULL, NULL,
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CTLFLAG_PERMANENT,
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CTLTYPE_NODE, "vfs", NULL,
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NULL, 0, NULL, 0,
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CTL_VFS, CTL_EOL);
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sysctl_createv(&ffs_sysctl_log, 0, NULL, NULL,
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CTLFLAG_PERMANENT,
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CTLTYPE_NODE, "ffs",
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SYSCTL_DESCR("Berkeley Fast File System"),
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NULL, 0, NULL, 0,
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CTL_VFS, 1, CTL_EOL);
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/*
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* @@@ should we even bother with these first three?
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*/
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sysctl_createv(&ffs_sysctl_log, 0, NULL, NULL,
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
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CTLTYPE_INT, "doclusterread", NULL,
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sysctl_notavail, 0, NULL, 0,
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CTL_VFS, 1, FFS_CLUSTERREAD, CTL_EOL);
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sysctl_createv(&ffs_sysctl_log, 0, NULL, NULL,
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
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CTLTYPE_INT, "doclusterwrite", NULL,
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sysctl_notavail, 0, NULL, 0,
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CTL_VFS, 1, FFS_CLUSTERWRITE, CTL_EOL);
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sysctl_createv(&ffs_sysctl_log, 0, NULL, NULL,
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
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CTLTYPE_INT, "doreallocblks", NULL,
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sysctl_notavail, 0, NULL, 0,
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CTL_VFS, 1, FFS_REALLOCBLKS, CTL_EOL);
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#if 0
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sysctl_createv(&ffs_sysctl_log, 0, NULL, NULL,
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
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CTLTYPE_INT, "doasyncfree",
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SYSCTL_DESCR("Release dirty blocks asynchronously"),
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NULL, 0, &doasyncfree, 0,
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CTL_VFS, 1, FFS_ASYNCFREE, CTL_EOL);
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#endif
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sysctl_createv(&ffs_sysctl_log, 0, NULL, NULL,
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
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CTLTYPE_INT, "log_changeopt",
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SYSCTL_DESCR("Log changes in optimization strategy"),
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NULL, 0, &ffs_log_changeopt, 0,
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CTL_VFS, 1, FFS_LOG_CHANGEOPT, CTL_EOL);
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#ifdef UFS_EXTATTR
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sysctl_createv(&ffs_sysctl_log, 0, NULL, NULL,
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
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CTLTYPE_INT, "extattr_autocreate",
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SYSCTL_DESCR("Size of attribute for "
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"backing file autocreation"),
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NULL, 0, &ufs_extattr_autocreate, 0,
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CTL_VFS, 1, FFS_EXTATTR_AUTOCREATE, CTL_EOL);
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#endif /* UFS_EXTATTR */
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ffs_snapshot_listener = kauth_listen_scope(KAUTH_SCOPE_SYSTEM,
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ffs_snapshot_cb, NULL);
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if (ffs_snapshot_listener == NULL)
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printf("ffs_modcmd: can't listen on system scope.\n");
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break;
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case MODULE_CMD_FINI:
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error = vfs_detach(&ffs_vfsops);
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if (error != 0)
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break;
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sysctl_teardown(&ffs_sysctl_log);
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if (ffs_snapshot_listener != NULL)
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kauth_unlisten_scope(ffs_snapshot_listener);
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break;
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default:
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error = ENOTTY;
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break;
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}
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return (error);
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}
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|
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pool_cache_t ffs_inode_cache;
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pool_cache_t ffs_dinode1_cache;
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pool_cache_t ffs_dinode2_cache;
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|
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static void ffs_oldfscompat_read(struct fs *, struct ufsmount *, daddr_t);
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static void ffs_oldfscompat_write(struct fs *, struct ufsmount *);
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|
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/*
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* Called by main() when ffs is going to be mounted as root.
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*/
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int
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ffs_mountroot(void)
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{
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struct fs *fs;
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struct mount *mp;
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struct lwp *l = curlwp; /* XXX */
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struct ufsmount *ump;
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int error;
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if (device_class(root_device) != DV_DISK)
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return (ENODEV);
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if ((error = vfs_rootmountalloc(MOUNT_FFS, "root_device", &mp))) {
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vrele(rootvp);
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return (error);
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}
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|
|
/*
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* We always need to be able to mount the root file system.
|
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*/
|
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mp->mnt_flag |= MNT_FORCE;
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if ((error = ffs_mountfs(rootvp, mp, l)) != 0) {
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vfs_unbusy(mp, false, NULL);
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vfs_destroy(mp);
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return (error);
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}
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mp->mnt_flag &= ~MNT_FORCE;
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mountlist_append(mp);
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ump = VFSTOUFS(mp);
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fs = ump->um_fs;
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memset(fs->fs_fsmnt, 0, sizeof(fs->fs_fsmnt));
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(void)copystr(mp->mnt_stat.f_mntonname, fs->fs_fsmnt, MNAMELEN - 1, 0);
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(void)ffs_statvfs(mp, &mp->mnt_stat);
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vfs_unbusy(mp, false, NULL);
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setrootfstime((time_t)fs->fs_time);
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return (0);
|
|
}
|
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|
|
/*
|
|
* VFS Operations.
|
|
*
|
|
* mount system call
|
|
*/
|
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int
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ffs_mount(struct mount *mp, const char *path, void *data, size_t *data_len)
|
|
{
|
|
struct lwp *l = curlwp;
|
|
struct vnode *devvp = NULL;
|
|
struct ufs_args *args = data;
|
|
struct ufsmount *ump = NULL;
|
|
struct fs *fs;
|
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int error = 0, flags, update;
|
|
mode_t accessmode;
|
|
|
|
if (*data_len < sizeof *args)
|
|
return EINVAL;
|
|
|
|
if (mp->mnt_flag & MNT_GETARGS) {
|
|
ump = VFSTOUFS(mp);
|
|
if (ump == NULL)
|
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return EIO;
|
|
args->fspec = NULL;
|
|
*data_len = sizeof *args;
|
|
return 0;
|
|
}
|
|
|
|
update = mp->mnt_flag & MNT_UPDATE;
|
|
|
|
/* Check arguments */
|
|
if (args->fspec != NULL) {
|
|
/*
|
|
* Look up the name and verify that it's sane.
|
|
*/
|
|
error = namei_simple_user(args->fspec,
|
|
NSM_FOLLOW_NOEMULROOT, &devvp);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
if (!update) {
|
|
/*
|
|
* Be sure this is a valid block device
|
|
*/
|
|
if (devvp->v_type != VBLK)
|
|
error = ENOTBLK;
|
|
else if (bdevsw_lookup(devvp->v_rdev) == NULL)
|
|
error = ENXIO;
|
|
} else {
|
|
/*
|
|
* Be sure we're still naming the same device
|
|
* used for our initial mount
|
|
*/
|
|
ump = VFSTOUFS(mp);
|
|
if (devvp != ump->um_devvp) {
|
|
if (devvp->v_rdev != ump->um_devvp->v_rdev)
|
|
error = EINVAL;
|
|
else {
|
|
vrele(devvp);
|
|
devvp = ump->um_devvp;
|
|
vref(devvp);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
if (!update) {
|
|
/* New mounts must have a filename for the device */
|
|
return (EINVAL);
|
|
} else {
|
|
/* Use the extant mount */
|
|
ump = VFSTOUFS(mp);
|
|
devvp = ump->um_devvp;
|
|
vref(devvp);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If mount by non-root, then verify that user has necessary
|
|
* permissions on the device.
|
|
*
|
|
* Permission to update a mount is checked higher, so here we presume
|
|
* updating the mount is okay (for example, as far as securelevel goes)
|
|
* which leaves us with the normal check.
|
|
*/
|
|
if (error == 0) {
|
|
accessmode = VREAD;
|
|
if (update ?
|
|
(mp->mnt_iflag & IMNT_WANTRDWR) != 0 :
|
|
(mp->mnt_flag & MNT_RDONLY) == 0)
|
|
accessmode |= VWRITE;
|
|
vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
|
|
error = kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_MOUNT,
|
|
KAUTH_REQ_SYSTEM_MOUNT_DEVICE, mp, devvp,
|
|
KAUTH_ARG(accessmode));
|
|
VOP_UNLOCK(devvp);
|
|
}
|
|
|
|
if (error) {
|
|
vrele(devvp);
|
|
return (error);
|
|
}
|
|
|
|
#ifdef WAPBL
|
|
/* WAPBL can only be enabled on a r/w mount. */
|
|
if ((mp->mnt_flag & MNT_RDONLY) && !(mp->mnt_iflag & IMNT_WANTRDWR)) {
|
|
mp->mnt_flag &= ~MNT_LOG;
|
|
}
|
|
#else /* !WAPBL */
|
|
mp->mnt_flag &= ~MNT_LOG;
|
|
#endif /* !WAPBL */
|
|
|
|
if (!update) {
|
|
int xflags;
|
|
|
|
if (mp->mnt_flag & MNT_RDONLY)
|
|
xflags = FREAD;
|
|
else
|
|
xflags = FREAD | FWRITE;
|
|
vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
|
|
error = VOP_OPEN(devvp, xflags, FSCRED);
|
|
VOP_UNLOCK(devvp);
|
|
if (error)
|
|
goto fail;
|
|
error = ffs_mountfs(devvp, mp, l);
|
|
if (error) {
|
|
vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
|
|
(void)VOP_CLOSE(devvp, xflags, NOCRED);
|
|
VOP_UNLOCK(devvp);
|
|
goto fail;
|
|
}
|
|
|
|
ump = VFSTOUFS(mp);
|
|
fs = ump->um_fs;
|
|
} else {
|
|
/*
|
|
* Update the mount.
|
|
*/
|
|
|
|
/*
|
|
* The initial mount got a reference on this
|
|
* device, so drop the one obtained via
|
|
* namei(), above.
|
|
*/
|
|
vrele(devvp);
|
|
|
|
ump = VFSTOUFS(mp);
|
|
fs = ump->um_fs;
|
|
if (fs->fs_ronly == 0 && (mp->mnt_flag & MNT_RDONLY)) {
|
|
/*
|
|
* Changing from r/w to r/o
|
|
*/
|
|
flags = WRITECLOSE;
|
|
if (mp->mnt_flag & MNT_FORCE)
|
|
flags |= FORCECLOSE;
|
|
error = ffs_flushfiles(mp, flags, l);
|
|
if (error == 0)
|
|
error = UFS_WAPBL_BEGIN(mp);
|
|
if (error == 0 &&
|
|
ffs_cgupdate(ump, MNT_WAIT) == 0 &&
|
|
fs->fs_clean & FS_WASCLEAN) {
|
|
if (mp->mnt_flag & MNT_SOFTDEP)
|
|
fs->fs_flags &= ~FS_DOSOFTDEP;
|
|
fs->fs_clean = FS_ISCLEAN;
|
|
(void) ffs_sbupdate(ump, MNT_WAIT);
|
|
}
|
|
if (error == 0)
|
|
UFS_WAPBL_END(mp);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
|
|
#ifdef WAPBL
|
|
if ((mp->mnt_flag & MNT_LOG) == 0) {
|
|
error = ffs_wapbl_stop(mp, mp->mnt_flag & MNT_FORCE);
|
|
if (error)
|
|
return error;
|
|
}
|
|
#endif /* WAPBL */
|
|
|
|
if (fs->fs_ronly == 0 && (mp->mnt_flag & MNT_RDONLY)) {
|
|
/*
|
|
* Finish change from r/w to r/o
|
|
*/
|
|
fs->fs_ronly = 1;
|
|
fs->fs_fmod = 0;
|
|
}
|
|
|
|
if (mp->mnt_flag & MNT_RELOAD) {
|
|
error = ffs_reload(mp, l->l_cred, l);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
|
|
if (fs->fs_ronly && (mp->mnt_iflag & IMNT_WANTRDWR)) {
|
|
/*
|
|
* Changing from read-only to read/write
|
|
*/
|
|
#ifndef QUOTA2
|
|
if (fs->fs_flags & FS_DOQUOTA2) {
|
|
ump->um_flags |= UFS_QUOTA2;
|
|
uprintf("%s: options QUOTA2 not enabled%s\n",
|
|
mp->mnt_stat.f_mntonname,
|
|
(mp->mnt_flag & MNT_FORCE) ? "" :
|
|
", not mounting");
|
|
return EINVAL;
|
|
}
|
|
#endif
|
|
fs->fs_ronly = 0;
|
|
fs->fs_clean <<= 1;
|
|
fs->fs_fmod = 1;
|
|
#ifdef WAPBL
|
|
if (fs->fs_flags & FS_DOWAPBL) {
|
|
printf("%s: replaying log to disk\n",
|
|
mp->mnt_stat.f_mntonname);
|
|
KDASSERT(mp->mnt_wapbl_replay);
|
|
error = wapbl_replay_write(mp->mnt_wapbl_replay,
|
|
devvp);
|
|
if (error) {
|
|
return error;
|
|
}
|
|
wapbl_replay_stop(mp->mnt_wapbl_replay);
|
|
fs->fs_clean = FS_WASCLEAN;
|
|
}
|
|
#endif /* WAPBL */
|
|
if (fs->fs_snapinum[0] != 0)
|
|
ffs_snapshot_mount(mp);
|
|
}
|
|
|
|
#ifdef WAPBL
|
|
error = ffs_wapbl_start(mp);
|
|
if (error)
|
|
return error;
|
|
#endif /* WAPBL */
|
|
|
|
#ifdef QUOTA2
|
|
if (!fs->fs_ronly) {
|
|
error = ffs_quota2_mount(mp);
|
|
if (error) {
|
|
return error;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if ((mp->mnt_flag & MNT_DISCARD) && !(ump->um_discarddata))
|
|
ump->um_discarddata = ffs_discard_init(devvp, fs);
|
|
|
|
if (args->fspec == NULL)
|
|
return 0;
|
|
}
|
|
|
|
error = set_statvfs_info(path, UIO_USERSPACE, args->fspec,
|
|
UIO_USERSPACE, mp->mnt_op->vfs_name, mp, l);
|
|
if (error == 0)
|
|
(void)strncpy(fs->fs_fsmnt, mp->mnt_stat.f_mntonname,
|
|
sizeof(fs->fs_fsmnt));
|
|
fs->fs_flags &= ~FS_DOSOFTDEP;
|
|
if (fs->fs_fmod != 0) { /* XXX */
|
|
int err;
|
|
|
|
fs->fs_fmod = 0;
|
|
if (fs->fs_clean & FS_WASCLEAN)
|
|
fs->fs_time = time_second;
|
|
else {
|
|
printf("%s: file system not clean (fs_clean=%#x); "
|
|
"please fsck(8)\n", mp->mnt_stat.f_mntfromname,
|
|
fs->fs_clean);
|
|
printf("%s: lost blocks %" PRId64 " files %d\n",
|
|
mp->mnt_stat.f_mntfromname, fs->fs_pendingblocks,
|
|
fs->fs_pendinginodes);
|
|
}
|
|
err = UFS_WAPBL_BEGIN(mp);
|
|
if (err == 0) {
|
|
(void) ffs_cgupdate(ump, MNT_WAIT);
|
|
UFS_WAPBL_END(mp);
|
|
}
|
|
}
|
|
if ((mp->mnt_flag & MNT_SOFTDEP) != 0) {
|
|
printf("%s: `-o softdep' is no longer supported, "
|
|
"consider `-o log'\n", mp->mnt_stat.f_mntfromname);
|
|
mp->mnt_flag &= ~MNT_SOFTDEP;
|
|
}
|
|
|
|
return (error);
|
|
|
|
fail:
|
|
vrele(devvp);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Reload all incore data for a filesystem (used after running fsck on
|
|
* the root filesystem and finding things to fix). The filesystem must
|
|
* be mounted read-only.
|
|
*
|
|
* Things to do to update the mount:
|
|
* 1) invalidate all cached meta-data.
|
|
* 2) re-read superblock from disk.
|
|
* 3) re-read summary information from disk.
|
|
* 4) invalidate all inactive vnodes.
|
|
* 5) invalidate all cached file data.
|
|
* 6) re-read inode data for all active vnodes.
|
|
*/
|
|
int
|
|
ffs_reload(struct mount *mp, kauth_cred_t cred, struct lwp *l)
|
|
{
|
|
struct vnode *vp, *mvp, *devvp;
|
|
struct inode *ip;
|
|
void *space;
|
|
struct buf *bp;
|
|
struct fs *fs, *newfs;
|
|
struct dkwedge_info dkw;
|
|
int i, bsize, blks, error;
|
|
int32_t *lp;
|
|
struct ufsmount *ump;
|
|
daddr_t sblockloc;
|
|
|
|
if ((mp->mnt_flag & MNT_RDONLY) == 0)
|
|
return (EINVAL);
|
|
|
|
ump = VFSTOUFS(mp);
|
|
/*
|
|
* Step 1: invalidate all cached meta-data.
|
|
*/
|
|
devvp = ump->um_devvp;
|
|
vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
|
|
error = vinvalbuf(devvp, 0, cred, l, 0, 0);
|
|
VOP_UNLOCK(devvp);
|
|
if (error)
|
|
panic("ffs_reload: dirty1");
|
|
/*
|
|
* Step 2: re-read superblock from disk.
|
|
*/
|
|
fs = ump->um_fs;
|
|
|
|
/* XXX we don't handle possibility that superblock moved. */
|
|
error = bread(devvp, fs->fs_sblockloc / DEV_BSIZE, fs->fs_sbsize,
|
|
NOCRED, 0, &bp);
|
|
if (error) {
|
|
return (error);
|
|
}
|
|
newfs = kmem_alloc(fs->fs_sbsize, KM_SLEEP);
|
|
memcpy(newfs, bp->b_data, fs->fs_sbsize);
|
|
#ifdef FFS_EI
|
|
if (ump->um_flags & UFS_NEEDSWAP) {
|
|
ffs_sb_swap((struct fs*)bp->b_data, newfs);
|
|
fs->fs_flags |= FS_SWAPPED;
|
|
} else
|
|
#endif
|
|
fs->fs_flags &= ~FS_SWAPPED;
|
|
if ((newfs->fs_magic != FS_UFS1_MAGIC &&
|
|
newfs->fs_magic != FS_UFS2_MAGIC)||
|
|
newfs->fs_bsize > MAXBSIZE ||
|
|
newfs->fs_bsize < sizeof(struct fs)) {
|
|
brelse(bp, 0);
|
|
kmem_free(newfs, fs->fs_sbsize);
|
|
return (EIO); /* XXX needs translation */
|
|
}
|
|
/* Store off old fs_sblockloc for fs_oldfscompat_read. */
|
|
sblockloc = fs->fs_sblockloc;
|
|
/*
|
|
* Copy pointer fields back into superblock before copying in XXX
|
|
* new superblock. These should really be in the ufsmount. XXX
|
|
* Note that important parameters (eg fs_ncg) are unchanged.
|
|
*/
|
|
newfs->fs_csp = fs->fs_csp;
|
|
newfs->fs_maxcluster = fs->fs_maxcluster;
|
|
newfs->fs_contigdirs = fs->fs_contigdirs;
|
|
newfs->fs_ronly = fs->fs_ronly;
|
|
newfs->fs_active = fs->fs_active;
|
|
memcpy(fs, newfs, (u_int)fs->fs_sbsize);
|
|
brelse(bp, 0);
|
|
kmem_free(newfs, fs->fs_sbsize);
|
|
|
|
/* Recheck for apple UFS filesystem */
|
|
ump->um_flags &= ~UFS_ISAPPLEUFS;
|
|
/* First check to see if this is tagged as an Apple UFS filesystem
|
|
* in the disklabel
|
|
*/
|
|
if (getdiskinfo(devvp, &dkw) == 0 &&
|
|
strcmp(dkw.dkw_ptype, DKW_PTYPE_APPLEUFS) == 0)
|
|
ump->um_flags |= UFS_ISAPPLEUFS;
|
|
#ifdef APPLE_UFS
|
|
else {
|
|
/* Manually look for an apple ufs label, and if a valid one
|
|
* is found, then treat it like an Apple UFS filesystem anyway
|
|
*
|
|
* EINVAL is most probably a blocksize or alignment problem,
|
|
* it is unlikely that this is an Apple UFS filesystem then.
|
|
*/
|
|
error = bread(devvp, (daddr_t)(APPLEUFS_LABEL_OFFSET / DEV_BSIZE),
|
|
APPLEUFS_LABEL_SIZE, cred, 0, &bp);
|
|
if (error && error != EINVAL) {
|
|
return (error);
|
|
}
|
|
if (error == 0) {
|
|
error = ffs_appleufs_validate(fs->fs_fsmnt,
|
|
(struct appleufslabel *)bp->b_data, NULL);
|
|
if (error == 0)
|
|
ump->um_flags |= UFS_ISAPPLEUFS;
|
|
brelse(bp, 0);
|
|
}
|
|
bp = NULL;
|
|
}
|
|
#else
|
|
if (ump->um_flags & UFS_ISAPPLEUFS)
|
|
return (EIO);
|
|
#endif
|
|
|
|
if (UFS_MPISAPPLEUFS(ump)) {
|
|
/* see comment about NeXT below */
|
|
ump->um_maxsymlinklen = APPLEUFS_MAXSYMLINKLEN;
|
|
ump->um_dirblksiz = APPLEUFS_DIRBLKSIZ;
|
|
mp->mnt_iflag |= IMNT_DTYPE;
|
|
} else {
|
|
ump->um_maxsymlinklen = fs->fs_maxsymlinklen;
|
|
ump->um_dirblksiz = UFS_DIRBLKSIZ;
|
|
if (ump->um_maxsymlinklen > 0)
|
|
mp->mnt_iflag |= IMNT_DTYPE;
|
|
else
|
|
mp->mnt_iflag &= ~IMNT_DTYPE;
|
|
}
|
|
ffs_oldfscompat_read(fs, ump, sblockloc);
|
|
|
|
mutex_enter(&ump->um_lock);
|
|
ump->um_maxfilesize = fs->fs_maxfilesize;
|
|
if (fs->fs_flags & ~(FS_KNOWN_FLAGS | FS_INTERNAL)) {
|
|
uprintf("%s: unknown ufs flags: 0x%08"PRIx32"%s\n",
|
|
mp->mnt_stat.f_mntonname, fs->fs_flags,
|
|
(mp->mnt_flag & MNT_FORCE) ? "" : ", not mounting");
|
|
if ((mp->mnt_flag & MNT_FORCE) == 0) {
|
|
mutex_exit(&ump->um_lock);
|
|
return (EINVAL);
|
|
}
|
|
}
|
|
if (fs->fs_pendingblocks != 0 || fs->fs_pendinginodes != 0) {
|
|
fs->fs_pendingblocks = 0;
|
|
fs->fs_pendinginodes = 0;
|
|
}
|
|
mutex_exit(&ump->um_lock);
|
|
|
|
ffs_statvfs(mp, &mp->mnt_stat);
|
|
/*
|
|
* Step 3: re-read summary information from disk.
|
|
*/
|
|
blks = howmany(fs->fs_cssize, fs->fs_fsize);
|
|
space = fs->fs_csp;
|
|
for (i = 0; i < blks; i += fs->fs_frag) {
|
|
bsize = fs->fs_bsize;
|
|
if (i + fs->fs_frag > blks)
|
|
bsize = (blks - i) * fs->fs_fsize;
|
|
error = bread(devvp, FFS_FSBTODB(fs, fs->fs_csaddr + i), bsize,
|
|
NOCRED, 0, &bp);
|
|
if (error) {
|
|
return (error);
|
|
}
|
|
#ifdef FFS_EI
|
|
if (UFS_FSNEEDSWAP(fs))
|
|
ffs_csum_swap((struct csum *)bp->b_data,
|
|
(struct csum *)space, bsize);
|
|
else
|
|
#endif
|
|
memcpy(space, bp->b_data, (size_t)bsize);
|
|
space = (char *)space + bsize;
|
|
brelse(bp, 0);
|
|
}
|
|
/*
|
|
* We no longer know anything about clusters per cylinder group.
|
|
*/
|
|
if (fs->fs_contigsumsize > 0) {
|
|
lp = fs->fs_maxcluster;
|
|
for (i = 0; i < fs->fs_ncg; i++)
|
|
*lp++ = fs->fs_contigsumsize;
|
|
}
|
|
|
|
/* Allocate a marker vnode. */
|
|
mvp = vnalloc(mp);
|
|
/*
|
|
* NOTE: not using the TAILQ_FOREACH here since in this loop vgone()
|
|
* and vclean() can be called indirectly
|
|
*/
|
|
mutex_enter(&mntvnode_lock);
|
|
loop:
|
|
for (vp = TAILQ_FIRST(&mp->mnt_vnodelist); vp; vp = vunmark(mvp)) {
|
|
vmark(mvp, vp);
|
|
if (vp->v_mount != mp || vismarker(vp))
|
|
continue;
|
|
/*
|
|
* Step 4: invalidate all inactive vnodes.
|
|
*/
|
|
if (vrecycle(vp, &mntvnode_lock)) {
|
|
mutex_enter(&mntvnode_lock);
|
|
(void)vunmark(mvp);
|
|
goto loop;
|
|
}
|
|
/*
|
|
* Step 5: invalidate all cached file data.
|
|
*/
|
|
mutex_enter(vp->v_interlock);
|
|
mutex_exit(&mntvnode_lock);
|
|
if (vget(vp, LK_EXCLUSIVE)) {
|
|
(void)vunmark(mvp);
|
|
goto loop;
|
|
}
|
|
if (vinvalbuf(vp, 0, cred, l, 0, 0))
|
|
panic("ffs_reload: dirty2");
|
|
/*
|
|
* Step 6: re-read inode data for all active vnodes.
|
|
*/
|
|
ip = VTOI(vp);
|
|
error = bread(devvp, FFS_FSBTODB(fs, ino_to_fsba(fs, ip->i_number)),
|
|
(int)fs->fs_bsize, NOCRED, 0, &bp);
|
|
if (error) {
|
|
vput(vp);
|
|
(void)vunmark(mvp);
|
|
break;
|
|
}
|
|
ffs_load_inode(bp, ip, fs, ip->i_number);
|
|
brelse(bp, 0);
|
|
vput(vp);
|
|
mutex_enter(&mntvnode_lock);
|
|
}
|
|
mutex_exit(&mntvnode_lock);
|
|
vnfree(mvp);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Possible superblock locations ordered from most to least likely.
|
|
*/
|
|
static const int sblock_try[] = SBLOCKSEARCH;
|
|
|
|
/*
|
|
* Common code for mount and mountroot
|
|
*/
|
|
int
|
|
ffs_mountfs(struct vnode *devvp, struct mount *mp, struct lwp *l)
|
|
{
|
|
struct ufsmount *ump;
|
|
struct buf *bp;
|
|
struct fs *fs;
|
|
dev_t dev;
|
|
struct dkwedge_info dkw;
|
|
void *space;
|
|
daddr_t sblockloc, fsblockloc;
|
|
int blks, fstype;
|
|
int error, i, bsize, ronly, bset = 0;
|
|
#ifdef FFS_EI
|
|
int needswap = 0; /* keep gcc happy */
|
|
#endif
|
|
int32_t *lp;
|
|
kauth_cred_t cred;
|
|
u_int32_t sbsize = 8192; /* keep gcc happy*/
|
|
u_int32_t allocsbsize;
|
|
int32_t fsbsize;
|
|
|
|
dev = devvp->v_rdev;
|
|
cred = l ? l->l_cred : NOCRED;
|
|
|
|
/* Flush out any old buffers remaining from a previous use. */
|
|
vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
|
|
error = vinvalbuf(devvp, V_SAVE, cred, l, 0, 0);
|
|
VOP_UNLOCK(devvp);
|
|
if (error)
|
|
return (error);
|
|
|
|
ronly = (mp->mnt_flag & MNT_RDONLY) != 0;
|
|
|
|
bp = NULL;
|
|
ump = NULL;
|
|
fs = NULL;
|
|
sblockloc = 0;
|
|
fstype = 0;
|
|
|
|
error = fstrans_mount(mp);
|
|
if (error)
|
|
return error;
|
|
|
|
ump = kmem_zalloc(sizeof(*ump), KM_SLEEP);
|
|
mutex_init(&ump->um_lock, MUTEX_DEFAULT, IPL_NONE);
|
|
error = ffs_snapshot_init(ump);
|
|
if (error)
|
|
goto out;
|
|
ump->um_ops = &ffs_ufsops;
|
|
|
|
#ifdef WAPBL
|
|
sbagain:
|
|
#endif
|
|
/*
|
|
* Try reading the superblock in each of its possible locations.
|
|
*/
|
|
for (i = 0; ; i++) {
|
|
if (bp != NULL) {
|
|
brelse(bp, BC_NOCACHE);
|
|
bp = NULL;
|
|
}
|
|
if (sblock_try[i] == -1) {
|
|
error = EINVAL;
|
|
fs = NULL;
|
|
goto out;
|
|
}
|
|
error = bread(devvp, sblock_try[i] / DEV_BSIZE, SBLOCKSIZE, cred,
|
|
0, &bp);
|
|
if (error) {
|
|
fs = NULL;
|
|
goto out;
|
|
}
|
|
fs = (struct fs*)bp->b_data;
|
|
fsblockloc = sblockloc = sblock_try[i];
|
|
if (fs->fs_magic == FS_UFS1_MAGIC) {
|
|
sbsize = fs->fs_sbsize;
|
|
fstype = UFS1;
|
|
fsbsize = fs->fs_bsize;
|
|
#ifdef FFS_EI
|
|
needswap = 0;
|
|
} else if (fs->fs_magic == FS_UFS1_MAGIC_SWAPPED) {
|
|
sbsize = bswap32(fs->fs_sbsize);
|
|
fstype = UFS1;
|
|
fsbsize = bswap32(fs->fs_bsize);
|
|
needswap = 1;
|
|
#endif
|
|
} else if (fs->fs_magic == FS_UFS2_MAGIC) {
|
|
sbsize = fs->fs_sbsize;
|
|
fstype = UFS2;
|
|
fsbsize = fs->fs_bsize;
|
|
#ifdef FFS_EI
|
|
needswap = 0;
|
|
} else if (fs->fs_magic == FS_UFS2_MAGIC_SWAPPED) {
|
|
sbsize = bswap32(fs->fs_sbsize);
|
|
fstype = UFS2;
|
|
fsbsize = bswap32(fs->fs_bsize);
|
|
needswap = 1;
|
|
#endif
|
|
} else
|
|
continue;
|
|
|
|
|
|
/* fs->fs_sblockloc isn't defined for old filesystems */
|
|
if (fstype == UFS1 && !(fs->fs_old_flags & FS_FLAGS_UPDATED)) {
|
|
if (sblockloc == SBLOCK_UFS2)
|
|
/*
|
|
* This is likely to be the first alternate
|
|
* in a filesystem with 64k blocks.
|
|
* Don't use it.
|
|
*/
|
|
continue;
|
|
fsblockloc = sblockloc;
|
|
} else {
|
|
fsblockloc = fs->fs_sblockloc;
|
|
#ifdef FFS_EI
|
|
if (needswap)
|
|
fsblockloc = bswap64(fsblockloc);
|
|
#endif
|
|
}
|
|
|
|
/* Check we haven't found an alternate superblock */
|
|
if (fsblockloc != sblockloc)
|
|
continue;
|
|
|
|
/* Validate size of superblock */
|
|
if (sbsize > MAXBSIZE || sbsize < sizeof(struct fs))
|
|
continue;
|
|
|
|
/* Check that we can handle the file system blocksize */
|
|
if (fsbsize > MAXBSIZE) {
|
|
printf("ffs_mountfs: block size (%d) > MAXBSIZE (%d)\n",
|
|
fsbsize, MAXBSIZE);
|
|
continue;
|
|
}
|
|
|
|
/* Ok seems to be a good superblock */
|
|
break;
|
|
}
|
|
|
|
fs = kmem_alloc((u_long)sbsize, KM_SLEEP);
|
|
memcpy(fs, bp->b_data, sbsize);
|
|
ump->um_fs = fs;
|
|
|
|
#ifdef FFS_EI
|
|
if (needswap) {
|
|
ffs_sb_swap((struct fs*)bp->b_data, fs);
|
|
fs->fs_flags |= FS_SWAPPED;
|
|
} else
|
|
#endif
|
|
fs->fs_flags &= ~FS_SWAPPED;
|
|
|
|
#ifdef WAPBL
|
|
if ((mp->mnt_wapbl_replay == 0) && (fs->fs_flags & FS_DOWAPBL)) {
|
|
error = ffs_wapbl_replay_start(mp, fs, devvp);
|
|
if (error && (mp->mnt_flag & MNT_FORCE) == 0)
|
|
goto out;
|
|
if (!error) {
|
|
if (!ronly) {
|
|
/* XXX fsmnt may be stale. */
|
|
printf("%s: replaying log to disk\n",
|
|
fs->fs_fsmnt);
|
|
error = wapbl_replay_write(mp->mnt_wapbl_replay,
|
|
devvp);
|
|
if (error)
|
|
goto out;
|
|
wapbl_replay_stop(mp->mnt_wapbl_replay);
|
|
fs->fs_clean = FS_WASCLEAN;
|
|
} else {
|
|
/* XXX fsmnt may be stale */
|
|
printf("%s: replaying log to memory\n",
|
|
fs->fs_fsmnt);
|
|
}
|
|
|
|
/* Force a re-read of the superblock */
|
|
brelse(bp, BC_INVAL);
|
|
bp = NULL;
|
|
kmem_free(fs, sbsize);
|
|
fs = NULL;
|
|
goto sbagain;
|
|
}
|
|
}
|
|
#else /* !WAPBL */
|
|
if ((fs->fs_flags & FS_DOWAPBL) && (mp->mnt_flag & MNT_FORCE) == 0) {
|
|
error = EPERM;
|
|
goto out;
|
|
}
|
|
#endif /* !WAPBL */
|
|
|
|
ffs_oldfscompat_read(fs, ump, sblockloc);
|
|
ump->um_maxfilesize = fs->fs_maxfilesize;
|
|
|
|
if (fs->fs_flags & ~(FS_KNOWN_FLAGS | FS_INTERNAL)) {
|
|
uprintf("%s: unknown ufs flags: 0x%08"PRIx32"%s\n",
|
|
mp->mnt_stat.f_mntonname, fs->fs_flags,
|
|
(mp->mnt_flag & MNT_FORCE) ? "" : ", not mounting");
|
|
if ((mp->mnt_flag & MNT_FORCE) == 0) {
|
|
error = EINVAL;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if (fs->fs_pendingblocks != 0 || fs->fs_pendinginodes != 0) {
|
|
fs->fs_pendingblocks = 0;
|
|
fs->fs_pendinginodes = 0;
|
|
}
|
|
|
|
ump->um_fstype = fstype;
|
|
if (fs->fs_sbsize < SBLOCKSIZE)
|
|
brelse(bp, BC_INVAL);
|
|
else
|
|
brelse(bp, 0);
|
|
bp = NULL;
|
|
|
|
/* First check to see if this is tagged as an Apple UFS filesystem
|
|
* in the disklabel
|
|
*/
|
|
if (getdiskinfo(devvp, &dkw) == 0 &&
|
|
strcmp(dkw.dkw_ptype, DKW_PTYPE_APPLEUFS) == 0)
|
|
ump->um_flags |= UFS_ISAPPLEUFS;
|
|
#ifdef APPLE_UFS
|
|
else {
|
|
/* Manually look for an apple ufs label, and if a valid one
|
|
* is found, then treat it like an Apple UFS filesystem anyway
|
|
*/
|
|
error = bread(devvp, (daddr_t)(APPLEUFS_LABEL_OFFSET / DEV_BSIZE),
|
|
APPLEUFS_LABEL_SIZE, cred, 0, &bp);
|
|
if (error)
|
|
goto out;
|
|
error = ffs_appleufs_validate(fs->fs_fsmnt,
|
|
(struct appleufslabel *)bp->b_data, NULL);
|
|
if (error == 0) {
|
|
ump->um_flags |= UFS_ISAPPLEUFS;
|
|
}
|
|
brelse(bp, 0);
|
|
bp = NULL;
|
|
}
|
|
#else
|
|
if (ump->um_flags & UFS_ISAPPLEUFS) {
|
|
error = EINVAL;
|
|
goto out;
|
|
}
|
|
#endif
|
|
|
|
#if 0
|
|
/*
|
|
* XXX This code changes the behaviour of mounting dirty filesystems, to
|
|
* XXX require "mount -f ..." to mount them. This doesn't match what
|
|
* XXX mount(8) describes and is disabled for now.
|
|
*/
|
|
/*
|
|
* If the file system is not clean, don't allow it to be mounted
|
|
* unless MNT_FORCE is specified. (Note: MNT_FORCE is always set
|
|
* for the root file system.)
|
|
*/
|
|
if (fs->fs_flags & FS_DOWAPBL) {
|
|
/*
|
|
* wapbl normally expects to be FS_WASCLEAN when the FS_DOWAPBL
|
|
* bit is set, although there's a window in unmount where it
|
|
* could be FS_ISCLEAN
|
|
*/
|
|
if ((mp->mnt_flag & MNT_FORCE) == 0 &&
|
|
(fs->fs_clean & (FS_WASCLEAN | FS_ISCLEAN)) == 0) {
|
|
error = EPERM;
|
|
goto out;
|
|
}
|
|
} else
|
|
if ((fs->fs_clean & FS_ISCLEAN) == 0 &&
|
|
(mp->mnt_flag & MNT_FORCE) == 0) {
|
|
error = EPERM;
|
|
goto out;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* verify that we can access the last block in the fs
|
|
* if we're mounting read/write.
|
|
*/
|
|
|
|
if (!ronly) {
|
|
error = bread(devvp, FFS_FSBTODB(fs, fs->fs_size - 1), fs->fs_fsize,
|
|
cred, 0, &bp);
|
|
if (bp->b_bcount != fs->fs_fsize)
|
|
error = EINVAL;
|
|
if (error) {
|
|
bset = BC_INVAL;
|
|
goto out;
|
|
}
|
|
brelse(bp, BC_INVAL);
|
|
bp = NULL;
|
|
}
|
|
|
|
fs->fs_ronly = ronly;
|
|
/* Don't bump fs_clean if we're replaying journal */
|
|
if (!((fs->fs_flags & FS_DOWAPBL) && (fs->fs_clean & FS_WASCLEAN)))
|
|
if (ronly == 0) {
|
|
fs->fs_clean <<= 1;
|
|
fs->fs_fmod = 1;
|
|
}
|
|
bsize = fs->fs_cssize;
|
|
blks = howmany(bsize, fs->fs_fsize);
|
|
if (fs->fs_contigsumsize > 0)
|
|
bsize += fs->fs_ncg * sizeof(int32_t);
|
|
bsize += fs->fs_ncg * sizeof(*fs->fs_contigdirs);
|
|
allocsbsize = bsize;
|
|
space = kmem_alloc((u_long)allocsbsize, KM_SLEEP);
|
|
fs->fs_csp = space;
|
|
for (i = 0; i < blks; i += fs->fs_frag) {
|
|
bsize = fs->fs_bsize;
|
|
if (i + fs->fs_frag > blks)
|
|
bsize = (blks - i) * fs->fs_fsize;
|
|
error = bread(devvp, FFS_FSBTODB(fs, fs->fs_csaddr + i), bsize,
|
|
cred, 0, &bp);
|
|
if (error) {
|
|
kmem_free(fs->fs_csp, allocsbsize);
|
|
goto out;
|
|
}
|
|
#ifdef FFS_EI
|
|
if (needswap)
|
|
ffs_csum_swap((struct csum *)bp->b_data,
|
|
(struct csum *)space, bsize);
|
|
else
|
|
#endif
|
|
memcpy(space, bp->b_data, (u_int)bsize);
|
|
|
|
space = (char *)space + bsize;
|
|
brelse(bp, 0);
|
|
bp = NULL;
|
|
}
|
|
if (fs->fs_contigsumsize > 0) {
|
|
fs->fs_maxcluster = lp = space;
|
|
for (i = 0; i < fs->fs_ncg; i++)
|
|
*lp++ = fs->fs_contigsumsize;
|
|
space = lp;
|
|
}
|
|
bsize = fs->fs_ncg * sizeof(*fs->fs_contigdirs);
|
|
fs->fs_contigdirs = space;
|
|
space = (char *)space + bsize;
|
|
memset(fs->fs_contigdirs, 0, bsize);
|
|
/* Compatibility for old filesystems - XXX */
|
|
if (fs->fs_avgfilesize <= 0)
|
|
fs->fs_avgfilesize = AVFILESIZ;
|
|
if (fs->fs_avgfpdir <= 0)
|
|
fs->fs_avgfpdir = AFPDIR;
|
|
fs->fs_active = NULL;
|
|
mp->mnt_data = ump;
|
|
mp->mnt_stat.f_fsidx.__fsid_val[0] = (long)dev;
|
|
mp->mnt_stat.f_fsidx.__fsid_val[1] = makefstype(MOUNT_FFS);
|
|
mp->mnt_stat.f_fsid = mp->mnt_stat.f_fsidx.__fsid_val[0];
|
|
mp->mnt_stat.f_namemax = FFS_MAXNAMLEN;
|
|
if (UFS_MPISAPPLEUFS(ump)) {
|
|
/* NeXT used to keep short symlinks in the inode even
|
|
* when using FS_42INODEFMT. In that case fs->fs_maxsymlinklen
|
|
* is probably -1, but we still need to be able to identify
|
|
* short symlinks.
|
|
*/
|
|
ump->um_maxsymlinklen = APPLEUFS_MAXSYMLINKLEN;
|
|
ump->um_dirblksiz = APPLEUFS_DIRBLKSIZ;
|
|
mp->mnt_iflag |= IMNT_DTYPE;
|
|
} else {
|
|
ump->um_maxsymlinklen = fs->fs_maxsymlinklen;
|
|
ump->um_dirblksiz = UFS_DIRBLKSIZ;
|
|
if (ump->um_maxsymlinklen > 0)
|
|
mp->mnt_iflag |= IMNT_DTYPE;
|
|
else
|
|
mp->mnt_iflag &= ~IMNT_DTYPE;
|
|
}
|
|
mp->mnt_fs_bshift = fs->fs_bshift;
|
|
mp->mnt_dev_bshift = DEV_BSHIFT; /* XXX */
|
|
mp->mnt_flag |= MNT_LOCAL;
|
|
mp->mnt_iflag |= IMNT_MPSAFE;
|
|
#ifdef FFS_EI
|
|
if (needswap)
|
|
ump->um_flags |= UFS_NEEDSWAP;
|
|
#endif
|
|
ump->um_mountp = mp;
|
|
ump->um_dev = dev;
|
|
ump->um_devvp = devvp;
|
|
ump->um_nindir = fs->fs_nindir;
|
|
ump->um_lognindir = ffs(fs->fs_nindir) - 1;
|
|
ump->um_bptrtodb = fs->fs_fshift - DEV_BSHIFT;
|
|
ump->um_seqinc = fs->fs_frag;
|
|
for (i = 0; i < MAXQUOTAS; i++)
|
|
ump->um_quotas[i] = NULLVP;
|
|
spec_node_setmountedfs(devvp, mp);
|
|
if (ronly == 0 && fs->fs_snapinum[0] != 0)
|
|
ffs_snapshot_mount(mp);
|
|
#ifdef WAPBL
|
|
if (!ronly) {
|
|
KDASSERT(fs->fs_ronly == 0);
|
|
/*
|
|
* ffs_wapbl_start() needs mp->mnt_stat initialised if it
|
|
* needs to create a new log file in-filesystem.
|
|
*/
|
|
ffs_statvfs(mp, &mp->mnt_stat);
|
|
|
|
error = ffs_wapbl_start(mp);
|
|
if (error) {
|
|
kmem_free(fs->fs_csp, allocsbsize);
|
|
goto out;
|
|
}
|
|
}
|
|
#endif /* WAPBL */
|
|
if (ronly == 0) {
|
|
#ifdef QUOTA2
|
|
error = ffs_quota2_mount(mp);
|
|
if (error) {
|
|
kmem_free(fs->fs_csp, allocsbsize);
|
|
goto out;
|
|
}
|
|
#else
|
|
if (fs->fs_flags & FS_DOQUOTA2) {
|
|
ump->um_flags |= UFS_QUOTA2;
|
|
uprintf("%s: options QUOTA2 not enabled%s\n",
|
|
mp->mnt_stat.f_mntonname,
|
|
(mp->mnt_flag & MNT_FORCE) ? "" : ", not mounting");
|
|
if ((mp->mnt_flag & MNT_FORCE) == 0) {
|
|
error = EINVAL;
|
|
kmem_free(fs->fs_csp, allocsbsize);
|
|
goto out;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
#ifdef UFS_EXTATTR
|
|
/*
|
|
* Initialize file-backed extended attributes on UFS1 file
|
|
* systems.
|
|
*/
|
|
if (ump->um_fstype == UFS1)
|
|
ufs_extattr_uepm_init(&ump->um_extattr);
|
|
#endif /* UFS_EXTATTR */
|
|
|
|
if (mp->mnt_flag & MNT_DISCARD)
|
|
ump->um_discarddata = ffs_discard_init(devvp, fs);
|
|
|
|
return (0);
|
|
out:
|
|
#ifdef WAPBL
|
|
if (mp->mnt_wapbl_replay) {
|
|
wapbl_replay_stop(mp->mnt_wapbl_replay);
|
|
wapbl_replay_free(mp->mnt_wapbl_replay);
|
|
mp->mnt_wapbl_replay = 0;
|
|
}
|
|
#endif
|
|
|
|
fstrans_unmount(mp);
|
|
if (fs)
|
|
kmem_free(fs, fs->fs_sbsize);
|
|
spec_node_setmountedfs(devvp, NULL);
|
|
if (bp)
|
|
brelse(bp, bset);
|
|
if (ump) {
|
|
if (ump->um_oldfscompat)
|
|
kmem_free(ump->um_oldfscompat, 512 + 3*sizeof(int32_t));
|
|
mutex_destroy(&ump->um_lock);
|
|
kmem_free(ump, sizeof(*ump));
|
|
mp->mnt_data = NULL;
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Sanity checks for loading old filesystem superblocks.
|
|
* See ffs_oldfscompat_write below for unwound actions.
|
|
*
|
|
* XXX - Parts get retired eventually.
|
|
* Unfortunately new bits get added.
|
|
*/
|
|
static void
|
|
ffs_oldfscompat_read(struct fs *fs, struct ufsmount *ump, daddr_t sblockloc)
|
|
{
|
|
off_t maxfilesize;
|
|
int32_t *extrasave;
|
|
|
|
if ((fs->fs_magic != FS_UFS1_MAGIC) ||
|
|
(fs->fs_old_flags & FS_FLAGS_UPDATED))
|
|
return;
|
|
|
|
if (!ump->um_oldfscompat)
|
|
ump->um_oldfscompat = kmem_alloc(512 + 3*sizeof(int32_t),
|
|
KM_SLEEP);
|
|
|
|
memcpy(ump->um_oldfscompat, &fs->fs_old_postbl_start, 512);
|
|
extrasave = ump->um_oldfscompat;
|
|
extrasave += 512/sizeof(int32_t);
|
|
extrasave[0] = fs->fs_old_npsect;
|
|
extrasave[1] = fs->fs_old_interleave;
|
|
extrasave[2] = fs->fs_old_trackskew;
|
|
|
|
/* These fields will be overwritten by their
|
|
* original values in fs_oldfscompat_write, so it is harmless
|
|
* to modify them here.
|
|
*/
|
|
fs->fs_cstotal.cs_ndir = fs->fs_old_cstotal.cs_ndir;
|
|
fs->fs_cstotal.cs_nbfree = fs->fs_old_cstotal.cs_nbfree;
|
|
fs->fs_cstotal.cs_nifree = fs->fs_old_cstotal.cs_nifree;
|
|
fs->fs_cstotal.cs_nffree = fs->fs_old_cstotal.cs_nffree;
|
|
|
|
fs->fs_maxbsize = fs->fs_bsize;
|
|
fs->fs_time = fs->fs_old_time;
|
|
fs->fs_size = fs->fs_old_size;
|
|
fs->fs_dsize = fs->fs_old_dsize;
|
|
fs->fs_csaddr = fs->fs_old_csaddr;
|
|
fs->fs_sblockloc = sblockloc;
|
|
|
|
fs->fs_flags = fs->fs_old_flags | (fs->fs_flags & FS_INTERNAL);
|
|
|
|
if (fs->fs_old_postblformat == FS_42POSTBLFMT) {
|
|
fs->fs_old_nrpos = 8;
|
|
fs->fs_old_npsect = fs->fs_old_nsect;
|
|
fs->fs_old_interleave = 1;
|
|
fs->fs_old_trackskew = 0;
|
|
}
|
|
|
|
if (fs->fs_old_inodefmt < FS_44INODEFMT) {
|
|
fs->fs_maxfilesize = (u_quad_t) 1LL << 39;
|
|
fs->fs_qbmask = ~fs->fs_bmask;
|
|
fs->fs_qfmask = ~fs->fs_fmask;
|
|
}
|
|
|
|
maxfilesize = (u_int64_t)0x80000000 * fs->fs_bsize - 1;
|
|
if (fs->fs_maxfilesize > maxfilesize)
|
|
fs->fs_maxfilesize = maxfilesize;
|
|
|
|
/* Compatibility for old filesystems */
|
|
if (fs->fs_avgfilesize <= 0)
|
|
fs->fs_avgfilesize = AVFILESIZ;
|
|
if (fs->fs_avgfpdir <= 0)
|
|
fs->fs_avgfpdir = AFPDIR;
|
|
|
|
#if 0
|
|
if (bigcgs) {
|
|
fs->fs_save_cgsize = fs->fs_cgsize;
|
|
fs->fs_cgsize = fs->fs_bsize;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Unwinding superblock updates for old filesystems.
|
|
* See ffs_oldfscompat_read above for details.
|
|
*
|
|
* XXX - Parts get retired eventually.
|
|
* Unfortunately new bits get added.
|
|
*/
|
|
static void
|
|
ffs_oldfscompat_write(struct fs *fs, struct ufsmount *ump)
|
|
{
|
|
int32_t *extrasave;
|
|
|
|
if ((fs->fs_magic != FS_UFS1_MAGIC) ||
|
|
(fs->fs_old_flags & FS_FLAGS_UPDATED))
|
|
return;
|
|
|
|
fs->fs_old_time = fs->fs_time;
|
|
fs->fs_old_cstotal.cs_ndir = fs->fs_cstotal.cs_ndir;
|
|
fs->fs_old_cstotal.cs_nbfree = fs->fs_cstotal.cs_nbfree;
|
|
fs->fs_old_cstotal.cs_nifree = fs->fs_cstotal.cs_nifree;
|
|
fs->fs_old_cstotal.cs_nffree = fs->fs_cstotal.cs_nffree;
|
|
fs->fs_old_flags = fs->fs_flags;
|
|
|
|
#if 0
|
|
if (bigcgs) {
|
|
fs->fs_cgsize = fs->fs_save_cgsize;
|
|
}
|
|
#endif
|
|
|
|
memcpy(&fs->fs_old_postbl_start, ump->um_oldfscompat, 512);
|
|
extrasave = ump->um_oldfscompat;
|
|
extrasave += 512/sizeof(int32_t);
|
|
fs->fs_old_npsect = extrasave[0];
|
|
fs->fs_old_interleave = extrasave[1];
|
|
fs->fs_old_trackskew = extrasave[2];
|
|
|
|
}
|
|
|
|
/*
|
|
* unmount vfs operation
|
|
*/
|
|
int
|
|
ffs_unmount(struct mount *mp, int mntflags)
|
|
{
|
|
struct lwp *l = curlwp;
|
|
struct ufsmount *ump = VFSTOUFS(mp);
|
|
struct fs *fs = ump->um_fs;
|
|
int error, flags;
|
|
u_int32_t bsize;
|
|
#ifdef WAPBL
|
|
extern int doforce;
|
|
#endif
|
|
|
|
if (ump->um_discarddata) {
|
|
ffs_discard_finish(ump->um_discarddata, mntflags);
|
|
ump->um_discarddata = NULL;
|
|
}
|
|
|
|
flags = 0;
|
|
if (mntflags & MNT_FORCE)
|
|
flags |= FORCECLOSE;
|
|
if ((error = ffs_flushfiles(mp, flags, l)) != 0)
|
|
return (error);
|
|
error = UFS_WAPBL_BEGIN(mp);
|
|
if (error == 0)
|
|
if (fs->fs_ronly == 0 &&
|
|
ffs_cgupdate(ump, MNT_WAIT) == 0 &&
|
|
fs->fs_clean & FS_WASCLEAN) {
|
|
fs->fs_clean = FS_ISCLEAN;
|
|
fs->fs_fmod = 0;
|
|
(void) ffs_sbupdate(ump, MNT_WAIT);
|
|
}
|
|
if (error == 0)
|
|
UFS_WAPBL_END(mp);
|
|
#ifdef WAPBL
|
|
KASSERT(!(mp->mnt_wapbl_replay && mp->mnt_wapbl));
|
|
if (mp->mnt_wapbl_replay) {
|
|
KDASSERT(fs->fs_ronly);
|
|
wapbl_replay_stop(mp->mnt_wapbl_replay);
|
|
wapbl_replay_free(mp->mnt_wapbl_replay);
|
|
mp->mnt_wapbl_replay = 0;
|
|
}
|
|
error = ffs_wapbl_stop(mp, doforce && (mntflags & MNT_FORCE));
|
|
if (error) {
|
|
return error;
|
|
}
|
|
#endif /* WAPBL */
|
|
|
|
if (ump->um_devvp->v_type != VBAD)
|
|
spec_node_setmountedfs(ump->um_devvp, NULL);
|
|
vn_lock(ump->um_devvp, LK_EXCLUSIVE | LK_RETRY);
|
|
(void)VOP_CLOSE(ump->um_devvp, fs->fs_ronly ? FREAD : FREAD | FWRITE,
|
|
NOCRED);
|
|
vput(ump->um_devvp);
|
|
|
|
bsize = fs->fs_cssize;
|
|
if (fs->fs_contigsumsize > 0)
|
|
bsize += fs->fs_ncg * sizeof(int32_t);
|
|
bsize += fs->fs_ncg * sizeof(*fs->fs_contigdirs);
|
|
kmem_free(fs->fs_csp, bsize);
|
|
|
|
kmem_free(fs, fs->fs_sbsize);
|
|
if (ump->um_oldfscompat != NULL)
|
|
kmem_free(ump->um_oldfscompat, 512 + 3*sizeof(int32_t));
|
|
mutex_destroy(&ump->um_lock);
|
|
ffs_snapshot_fini(ump);
|
|
kmem_free(ump, sizeof(*ump));
|
|
mp->mnt_data = NULL;
|
|
mp->mnt_flag &= ~MNT_LOCAL;
|
|
fstrans_unmount(mp);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Flush out all the files in a filesystem.
|
|
*/
|
|
int
|
|
ffs_flushfiles(struct mount *mp, int flags, struct lwp *l)
|
|
{
|
|
extern int doforce;
|
|
struct ufsmount *ump;
|
|
int error;
|
|
|
|
if (!doforce)
|
|
flags &= ~FORCECLOSE;
|
|
ump = VFSTOUFS(mp);
|
|
#ifdef QUOTA
|
|
if ((error = quota1_umount(mp, flags)) != 0)
|
|
return (error);
|
|
#endif
|
|
#ifdef QUOTA2
|
|
if ((error = quota2_umount(mp, flags)) != 0)
|
|
return (error);
|
|
#endif
|
|
#ifdef UFS_EXTATTR
|
|
if (ump->um_fstype == UFS1) {
|
|
if (ump->um_extattr.uepm_flags & UFS_EXTATTR_UEPM_STARTED)
|
|
ufs_extattr_stop(mp, l);
|
|
if (ump->um_extattr.uepm_flags & UFS_EXTATTR_UEPM_INITIALIZED)
|
|
ufs_extattr_uepm_destroy(&ump->um_extattr);
|
|
}
|
|
#endif
|
|
if ((error = vflush(mp, 0, SKIPSYSTEM | flags)) != 0)
|
|
return (error);
|
|
ffs_snapshot_unmount(mp);
|
|
/*
|
|
* Flush all the files.
|
|
*/
|
|
error = vflush(mp, NULLVP, flags);
|
|
if (error)
|
|
return (error);
|
|
/*
|
|
* Flush filesystem metadata.
|
|
*/
|
|
vn_lock(ump->um_devvp, LK_EXCLUSIVE | LK_RETRY);
|
|
error = VOP_FSYNC(ump->um_devvp, l->l_cred, FSYNC_WAIT, 0, 0);
|
|
VOP_UNLOCK(ump->um_devvp);
|
|
if (flags & FORCECLOSE) /* XXXDBJ */
|
|
error = 0;
|
|
|
|
#ifdef WAPBL
|
|
if (error)
|
|
return error;
|
|
if (mp->mnt_wapbl) {
|
|
error = wapbl_flush(mp->mnt_wapbl, 1);
|
|
if (flags & FORCECLOSE)
|
|
error = 0;
|
|
}
|
|
#endif
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Get file system statistics.
|
|
*/
|
|
int
|
|
ffs_statvfs(struct mount *mp, struct statvfs *sbp)
|
|
{
|
|
struct ufsmount *ump;
|
|
struct fs *fs;
|
|
|
|
ump = VFSTOUFS(mp);
|
|
fs = ump->um_fs;
|
|
mutex_enter(&ump->um_lock);
|
|
sbp->f_bsize = fs->fs_bsize;
|
|
sbp->f_frsize = fs->fs_fsize;
|
|
sbp->f_iosize = fs->fs_bsize;
|
|
sbp->f_blocks = fs->fs_dsize;
|
|
sbp->f_bfree = ffs_blkstofrags(fs, fs->fs_cstotal.cs_nbfree) +
|
|
fs->fs_cstotal.cs_nffree + FFS_DBTOFSB(fs, fs->fs_pendingblocks);
|
|
sbp->f_bresvd = ((u_int64_t) fs->fs_dsize * (u_int64_t)
|
|
fs->fs_minfree) / (u_int64_t) 100;
|
|
if (sbp->f_bfree > sbp->f_bresvd)
|
|
sbp->f_bavail = sbp->f_bfree - sbp->f_bresvd;
|
|
else
|
|
sbp->f_bavail = 0;
|
|
sbp->f_files = fs->fs_ncg * fs->fs_ipg - UFS_ROOTINO;
|
|
sbp->f_ffree = fs->fs_cstotal.cs_nifree + fs->fs_pendinginodes;
|
|
sbp->f_favail = sbp->f_ffree;
|
|
sbp->f_fresvd = 0;
|
|
mutex_exit(&ump->um_lock);
|
|
copy_statvfs_info(sbp, mp);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Go through the disk queues to initiate sandbagged IO;
|
|
* go through the inodes to write those that have been modified;
|
|
* initiate the writing of the super block if it has been modified.
|
|
*
|
|
* Note: we are always called with the filesystem marked `MPBUSY'.
|
|
*/
|
|
int
|
|
ffs_sync(struct mount *mp, int waitfor, kauth_cred_t cred)
|
|
{
|
|
struct vnode *vp, *mvp, *nvp;
|
|
struct inode *ip;
|
|
struct ufsmount *ump = VFSTOUFS(mp);
|
|
struct fs *fs;
|
|
int error, allerror = 0;
|
|
bool is_suspending;
|
|
|
|
fs = ump->um_fs;
|
|
if (fs->fs_fmod != 0 && fs->fs_ronly != 0) { /* XXX */
|
|
printf("fs = %s\n", fs->fs_fsmnt);
|
|
panic("update: rofs mod");
|
|
}
|
|
|
|
/* Allocate a marker vnode. */
|
|
mvp = vnalloc(mp);
|
|
|
|
fstrans_start(mp, FSTRANS_SHARED);
|
|
is_suspending = (fstrans_getstate(mp) == FSTRANS_SUSPENDING);
|
|
/*
|
|
* Write back each (modified) inode.
|
|
*/
|
|
mutex_enter(&mntvnode_lock);
|
|
loop:
|
|
/*
|
|
* NOTE: not using the TAILQ_FOREACH here since in this loop vgone()
|
|
* and vclean() can be called indirectly
|
|
*/
|
|
for (vp = TAILQ_FIRST(&mp->mnt_vnodelist); vp; vp = nvp) {
|
|
nvp = TAILQ_NEXT(vp, v_mntvnodes);
|
|
/*
|
|
* If the vnode that we are about to sync is no longer
|
|
* associated with this mount point, start over.
|
|
*/
|
|
if (vp->v_mount != mp)
|
|
goto loop;
|
|
/*
|
|
* Don't interfere with concurrent scans of this FS.
|
|
*/
|
|
if (vismarker(vp))
|
|
continue;
|
|
mutex_enter(vp->v_interlock);
|
|
ip = VTOI(vp);
|
|
|
|
/*
|
|
* Skip the vnode/inode if inaccessible.
|
|
*/
|
|
if (ip == NULL || (vp->v_iflag & (VI_XLOCK | VI_CLEAN)) != 0 ||
|
|
vp->v_type == VNON) {
|
|
mutex_exit(vp->v_interlock);
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* We deliberately update inode times here. This will
|
|
* prevent a massive queue of updates accumulating, only
|
|
* to be handled by a call to unmount.
|
|
*
|
|
* XXX It would be better to have the syncer trickle these
|
|
* out. Adjustment needed to allow registering vnodes for
|
|
* sync when the vnode is clean, but the inode dirty. Or
|
|
* have ufs itself trickle out inode updates.
|
|
*
|
|
* If doing a lazy sync, we don't care about metadata or
|
|
* data updates, because they are handled by each vnode's
|
|
* synclist entry. In this case we are only interested in
|
|
* writing back modified inodes.
|
|
*/
|
|
if ((ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE |
|
|
IN_MODIFY | IN_MODIFIED | IN_ACCESSED)) == 0 &&
|
|
(waitfor == MNT_LAZY || (LIST_EMPTY(&vp->v_dirtyblkhd) &&
|
|
UVM_OBJ_IS_CLEAN(&vp->v_uobj)))) {
|
|
mutex_exit(vp->v_interlock);
|
|
continue;
|
|
}
|
|
if (vp->v_type == VBLK && is_suspending) {
|
|
mutex_exit(vp->v_interlock);
|
|
continue;
|
|
}
|
|
vmark(mvp, vp);
|
|
mutex_exit(&mntvnode_lock);
|
|
error = vget(vp, LK_EXCLUSIVE | LK_NOWAIT);
|
|
if (error) {
|
|
mutex_enter(&mntvnode_lock);
|
|
nvp = vunmark(mvp);
|
|
if (error == ENOENT) {
|
|
goto loop;
|
|
}
|
|
continue;
|
|
}
|
|
if (waitfor == MNT_LAZY) {
|
|
error = UFS_WAPBL_BEGIN(vp->v_mount);
|
|
if (!error) {
|
|
error = ffs_update(vp, NULL, NULL,
|
|
UPDATE_CLOSE);
|
|
UFS_WAPBL_END(vp->v_mount);
|
|
}
|
|
} else {
|
|
error = VOP_FSYNC(vp, cred, FSYNC_NOLOG |
|
|
(waitfor == MNT_WAIT ? FSYNC_WAIT : 0), 0, 0);
|
|
}
|
|
if (error)
|
|
allerror = error;
|
|
vput(vp);
|
|
mutex_enter(&mntvnode_lock);
|
|
nvp = vunmark(mvp);
|
|
}
|
|
mutex_exit(&mntvnode_lock);
|
|
/*
|
|
* Force stale file system control information to be flushed.
|
|
*/
|
|
if (waitfor != MNT_LAZY && (ump->um_devvp->v_numoutput > 0 ||
|
|
!LIST_EMPTY(&ump->um_devvp->v_dirtyblkhd))) {
|
|
vn_lock(ump->um_devvp, LK_EXCLUSIVE | LK_RETRY);
|
|
if ((error = VOP_FSYNC(ump->um_devvp, cred,
|
|
(waitfor == MNT_WAIT ? FSYNC_WAIT : 0) | FSYNC_NOLOG,
|
|
0, 0)) != 0)
|
|
allerror = error;
|
|
VOP_UNLOCK(ump->um_devvp);
|
|
if (allerror == 0 && waitfor == MNT_WAIT && !mp->mnt_wapbl) {
|
|
mutex_enter(&mntvnode_lock);
|
|
goto loop;
|
|
}
|
|
}
|
|
#if defined(QUOTA) || defined(QUOTA2)
|
|
qsync(mp);
|
|
#endif
|
|
/*
|
|
* Write back modified superblock.
|
|
*/
|
|
if (fs->fs_fmod != 0) {
|
|
fs->fs_fmod = 0;
|
|
fs->fs_time = time_second;
|
|
error = UFS_WAPBL_BEGIN(mp);
|
|
if (error)
|
|
allerror = error;
|
|
else {
|
|
if ((error = ffs_cgupdate(ump, waitfor)))
|
|
allerror = error;
|
|
UFS_WAPBL_END(mp);
|
|
}
|
|
}
|
|
|
|
#ifdef WAPBL
|
|
if (mp->mnt_wapbl) {
|
|
error = wapbl_flush(mp->mnt_wapbl, 0);
|
|
if (error)
|
|
allerror = error;
|
|
}
|
|
#endif
|
|
|
|
fstrans_done(mp);
|
|
vnfree(mvp);
|
|
return (allerror);
|
|
}
|
|
|
|
/*
|
|
* Look up a FFS dinode number to find its incore vnode, otherwise read it
|
|
* in from disk. If it is in core, wait for the lock bit to clear, then
|
|
* return the inode locked. Detection and handling of mount points must be
|
|
* done by the calling routine.
|
|
*/
|
|
int
|
|
ffs_vget(struct mount *mp, ino_t ino, struct vnode **vpp)
|
|
{
|
|
struct fs *fs;
|
|
struct inode *ip;
|
|
struct ufsmount *ump;
|
|
struct buf *bp;
|
|
struct vnode *vp;
|
|
dev_t dev;
|
|
int error;
|
|
|
|
ump = VFSTOUFS(mp);
|
|
dev = ump->um_dev;
|
|
|
|
retry:
|
|
if ((*vpp = ufs_ihashget(dev, ino, LK_EXCLUSIVE)) != NULL)
|
|
return (0);
|
|
|
|
/* Allocate a new vnode/inode. */
|
|
error = getnewvnode(VT_UFS, mp, ffs_vnodeop_p, NULL, &vp);
|
|
if (error) {
|
|
*vpp = NULL;
|
|
return (error);
|
|
}
|
|
ip = pool_cache_get(ffs_inode_cache, PR_WAITOK);
|
|
|
|
/*
|
|
* If someone beat us to it, put back the freshly allocated
|
|
* vnode/inode pair and retry.
|
|
*/
|
|
mutex_enter(&ufs_hashlock);
|
|
if (ufs_ihashget(dev, ino, 0) != NULL) {
|
|
mutex_exit(&ufs_hashlock);
|
|
ungetnewvnode(vp);
|
|
pool_cache_put(ffs_inode_cache, ip);
|
|
goto retry;
|
|
}
|
|
|
|
vp->v_vflag |= VV_LOCKSWORK;
|
|
|
|
/*
|
|
* XXX MFS ends up here, too, to allocate an inode. Should we
|
|
* XXX create another pool for MFS inodes?
|
|
*/
|
|
|
|
memset(ip, 0, sizeof(struct inode));
|
|
vp->v_data = ip;
|
|
ip->i_vnode = vp;
|
|
ip->i_ump = ump;
|
|
ip->i_fs = fs = ump->um_fs;
|
|
ip->i_dev = dev;
|
|
ip->i_number = ino;
|
|
#if defined(QUOTA) || defined(QUOTA2)
|
|
ufsquota_init(ip);
|
|
#endif
|
|
|
|
/*
|
|
* Initialize genfs node, we might proceed to destroy it in
|
|
* error branches.
|
|
*/
|
|
genfs_node_init(vp, &ffs_genfsops);
|
|
|
|
/*
|
|
* Put it onto its hash chain and lock it so that other requests for
|
|
* this inode will block if they arrive while we are sleeping waiting
|
|
* for old data structures to be purged or for the contents of the
|
|
* disk portion of this inode to be read.
|
|
*/
|
|
|
|
ufs_ihashins(ip);
|
|
mutex_exit(&ufs_hashlock);
|
|
|
|
/* Read in the disk contents for the inode, copy into the inode. */
|
|
error = bread(ump->um_devvp, FFS_FSBTODB(fs, ino_to_fsba(fs, ino)),
|
|
(int)fs->fs_bsize, NOCRED, 0, &bp);
|
|
if (error) {
|
|
|
|
/*
|
|
* The inode does not contain anything useful, so it would
|
|
* be misleading to leave it on its hash chain. With mode
|
|
* still zero, it will be unlinked and returned to the free
|
|
* list by vput().
|
|
*/
|
|
|
|
vput(vp);
|
|
*vpp = NULL;
|
|
return (error);
|
|
}
|
|
if (ip->i_ump->um_fstype == UFS1)
|
|
ip->i_din.ffs1_din = pool_cache_get(ffs_dinode1_cache,
|
|
PR_WAITOK);
|
|
else
|
|
ip->i_din.ffs2_din = pool_cache_get(ffs_dinode2_cache,
|
|
PR_WAITOK);
|
|
ffs_load_inode(bp, ip, fs, ino);
|
|
brelse(bp, 0);
|
|
|
|
/*
|
|
* Initialize the vnode from the inode, check for aliases.
|
|
* Note that the underlying vnode may have changed.
|
|
*/
|
|
|
|
ufs_vinit(mp, ffs_specop_p, ffs_fifoop_p, &vp);
|
|
|
|
/*
|
|
* Finish inode initialization now that aliasing has been resolved.
|
|
*/
|
|
|
|
ip->i_devvp = ump->um_devvp;
|
|
vref(ip->i_devvp);
|
|
|
|
/*
|
|
* Ensure that uid and gid are correct. This is a temporary
|
|
* fix until fsck has been changed to do the update.
|
|
*/
|
|
|
|
if (fs->fs_old_inodefmt < FS_44INODEFMT) { /* XXX */
|
|
ip->i_uid = ip->i_ffs1_ouid; /* XXX */
|
|
ip->i_gid = ip->i_ffs1_ogid; /* XXX */
|
|
} /* XXX */
|
|
uvm_vnp_setsize(vp, ip->i_size);
|
|
*vpp = vp;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* File handle to vnode
|
|
*
|
|
* Have to be really careful about stale file handles:
|
|
* - check that the inode number is valid
|
|
* - call ffs_vget() to get the locked inode
|
|
* - check for an unallocated inode (i_mode == 0)
|
|
* - check that the given client host has export rights and return
|
|
* those rights via. exflagsp and credanonp
|
|
*/
|
|
int
|
|
ffs_fhtovp(struct mount *mp, struct fid *fhp, struct vnode **vpp)
|
|
{
|
|
struct ufid ufh;
|
|
struct fs *fs;
|
|
|
|
if (fhp->fid_len != sizeof(struct ufid))
|
|
return EINVAL;
|
|
|
|
memcpy(&ufh, fhp, sizeof(ufh));
|
|
fs = VFSTOUFS(mp)->um_fs;
|
|
if (ufh.ufid_ino < UFS_ROOTINO ||
|
|
ufh.ufid_ino >= fs->fs_ncg * fs->fs_ipg)
|
|
return (ESTALE);
|
|
return (ufs_fhtovp(mp, &ufh, vpp));
|
|
}
|
|
|
|
/*
|
|
* Vnode pointer to File handle
|
|
*/
|
|
/* ARGSUSED */
|
|
int
|
|
ffs_vptofh(struct vnode *vp, struct fid *fhp, size_t *fh_size)
|
|
{
|
|
struct inode *ip;
|
|
struct ufid ufh;
|
|
|
|
if (*fh_size < sizeof(struct ufid)) {
|
|
*fh_size = sizeof(struct ufid);
|
|
return E2BIG;
|
|
}
|
|
ip = VTOI(vp);
|
|
*fh_size = sizeof(struct ufid);
|
|
memset(&ufh, 0, sizeof(ufh));
|
|
ufh.ufid_len = sizeof(struct ufid);
|
|
ufh.ufid_ino = ip->i_number;
|
|
ufh.ufid_gen = ip->i_gen;
|
|
memcpy(fhp, &ufh, sizeof(ufh));
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
ffs_init(void)
|
|
{
|
|
if (ffs_initcount++ > 0)
|
|
return;
|
|
|
|
ffs_inode_cache = pool_cache_init(sizeof(struct inode), 0, 0, 0,
|
|
"ffsino", NULL, IPL_NONE, NULL, NULL, NULL);
|
|
ffs_dinode1_cache = pool_cache_init(sizeof(struct ufs1_dinode), 0, 0, 0,
|
|
"ffsdino1", NULL, IPL_NONE, NULL, NULL, NULL);
|
|
ffs_dinode2_cache = pool_cache_init(sizeof(struct ufs2_dinode), 0, 0, 0,
|
|
"ffsdino2", NULL, IPL_NONE, NULL, NULL, NULL);
|
|
ufs_init();
|
|
}
|
|
|
|
void
|
|
ffs_reinit(void)
|
|
{
|
|
|
|
ufs_reinit();
|
|
}
|
|
|
|
void
|
|
ffs_done(void)
|
|
{
|
|
if (--ffs_initcount > 0)
|
|
return;
|
|
|
|
ufs_done();
|
|
pool_cache_destroy(ffs_dinode2_cache);
|
|
pool_cache_destroy(ffs_dinode1_cache);
|
|
pool_cache_destroy(ffs_inode_cache);
|
|
}
|
|
|
|
/*
|
|
* Write a superblock and associated information back to disk.
|
|
*/
|
|
int
|
|
ffs_sbupdate(struct ufsmount *mp, int waitfor)
|
|
{
|
|
struct fs *fs = mp->um_fs;
|
|
struct buf *bp;
|
|
int error = 0;
|
|
u_int32_t saveflag;
|
|
|
|
error = ffs_getblk(mp->um_devvp,
|
|
fs->fs_sblockloc / DEV_BSIZE, FFS_NOBLK,
|
|
fs->fs_sbsize, false, &bp);
|
|
if (error)
|
|
return error;
|
|
saveflag = fs->fs_flags & FS_INTERNAL;
|
|
fs->fs_flags &= ~FS_INTERNAL;
|
|
|
|
memcpy(bp->b_data, fs, fs->fs_sbsize);
|
|
|
|
ffs_oldfscompat_write((struct fs *)bp->b_data, mp);
|
|
#ifdef FFS_EI
|
|
if (mp->um_flags & UFS_NEEDSWAP)
|
|
ffs_sb_swap((struct fs *)bp->b_data, (struct fs *)bp->b_data);
|
|
#endif
|
|
fs->fs_flags |= saveflag;
|
|
|
|
if (waitfor == MNT_WAIT)
|
|
error = bwrite(bp);
|
|
else
|
|
bawrite(bp);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
ffs_cgupdate(struct ufsmount *mp, int waitfor)
|
|
{
|
|
struct fs *fs = mp->um_fs;
|
|
struct buf *bp;
|
|
int blks;
|
|
void *space;
|
|
int i, size, error = 0, allerror = 0;
|
|
|
|
allerror = ffs_sbupdate(mp, waitfor);
|
|
blks = howmany(fs->fs_cssize, fs->fs_fsize);
|
|
space = fs->fs_csp;
|
|
for (i = 0; i < blks; i += fs->fs_frag) {
|
|
size = fs->fs_bsize;
|
|
if (i + fs->fs_frag > blks)
|
|
size = (blks - i) * fs->fs_fsize;
|
|
error = ffs_getblk(mp->um_devvp, FFS_FSBTODB(fs, fs->fs_csaddr + i),
|
|
FFS_NOBLK, size, false, &bp);
|
|
if (error)
|
|
break;
|
|
#ifdef FFS_EI
|
|
if (mp->um_flags & UFS_NEEDSWAP)
|
|
ffs_csum_swap((struct csum*)space,
|
|
(struct csum*)bp->b_data, size);
|
|
else
|
|
#endif
|
|
memcpy(bp->b_data, space, (u_int)size);
|
|
space = (char *)space + size;
|
|
if (waitfor == MNT_WAIT)
|
|
error = bwrite(bp);
|
|
else
|
|
bawrite(bp);
|
|
}
|
|
if (!allerror && error)
|
|
allerror = error;
|
|
return (allerror);
|
|
}
|
|
|
|
int
|
|
ffs_extattrctl(struct mount *mp, int cmd, struct vnode *vp,
|
|
int attrnamespace, const char *attrname)
|
|
{
|
|
#ifdef UFS_EXTATTR
|
|
/*
|
|
* File-backed extended attributes are only supported on UFS1.
|
|
* UFS2 has native extended attributes.
|
|
*/
|
|
if (VFSTOUFS(mp)->um_fstype == UFS1)
|
|
return (ufs_extattrctl(mp, cmd, vp, attrnamespace, attrname));
|
|
#endif
|
|
return (vfs_stdextattrctl(mp, cmd, vp, attrnamespace, attrname));
|
|
}
|
|
|
|
int
|
|
ffs_suspendctl(struct mount *mp, int cmd)
|
|
{
|
|
int error;
|
|
struct lwp *l = curlwp;
|
|
|
|
switch (cmd) {
|
|
case SUSPEND_SUSPEND:
|
|
if ((error = fstrans_setstate(mp, FSTRANS_SUSPENDING)) != 0)
|
|
return error;
|
|
error = ffs_sync(mp, MNT_WAIT, l->l_proc->p_cred);
|
|
if (error == 0)
|
|
error = fstrans_setstate(mp, FSTRANS_SUSPENDED);
|
|
#ifdef WAPBL
|
|
if (error == 0 && mp->mnt_wapbl)
|
|
error = wapbl_flush(mp->mnt_wapbl, 1);
|
|
#endif
|
|
if (error != 0) {
|
|
(void) fstrans_setstate(mp, FSTRANS_NORMAL);
|
|
return error;
|
|
}
|
|
return 0;
|
|
|
|
case SUSPEND_RESUME:
|
|
return fstrans_setstate(mp, FSTRANS_NORMAL);
|
|
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Synch vnode for a mounted file system.
|
|
*/
|
|
static int
|
|
ffs_vfs_fsync(vnode_t *vp, int flags)
|
|
{
|
|
int error, i, pflags;
|
|
#ifdef WAPBL
|
|
struct mount *mp;
|
|
#endif
|
|
|
|
KASSERT(vp->v_type == VBLK);
|
|
KASSERT(spec_node_getmountedfs(vp) != NULL);
|
|
|
|
/*
|
|
* Flush all dirty data associated with the vnode.
|
|
*/
|
|
pflags = PGO_ALLPAGES | PGO_CLEANIT;
|
|
if ((flags & FSYNC_WAIT) != 0)
|
|
pflags |= PGO_SYNCIO;
|
|
mutex_enter(vp->v_interlock);
|
|
error = VOP_PUTPAGES(vp, 0, 0, pflags);
|
|
if (error)
|
|
return error;
|
|
|
|
#ifdef WAPBL
|
|
mp = spec_node_getmountedfs(vp);
|
|
if (mp && mp->mnt_wapbl) {
|
|
/*
|
|
* Don't bother writing out metadata if the syncer is
|
|
* making the request. We will let the sync vnode
|
|
* write it out in a single burst through a call to
|
|
* VFS_SYNC().
|
|
*/
|
|
if ((flags & (FSYNC_DATAONLY | FSYNC_LAZY | FSYNC_NOLOG)) != 0)
|
|
return 0;
|
|
|
|
/*
|
|
* Don't flush the log if the vnode being flushed
|
|
* contains no dirty buffers that could be in the log.
|
|
*/
|
|
if (!LIST_EMPTY(&vp->v_dirtyblkhd)) {
|
|
error = wapbl_flush(mp->mnt_wapbl, 0);
|
|
if (error)
|
|
return error;
|
|
}
|
|
|
|
if ((flags & FSYNC_WAIT) != 0) {
|
|
mutex_enter(vp->v_interlock);
|
|
while (vp->v_numoutput)
|
|
cv_wait(&vp->v_cv, vp->v_interlock);
|
|
mutex_exit(vp->v_interlock);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif /* WAPBL */
|
|
|
|
error = vflushbuf(vp, flags);
|
|
if (error == 0 && (flags & FSYNC_CACHE) != 0) {
|
|
i = 1;
|
|
(void)VOP_IOCTL(vp, DIOCCACHESYNC, &i, FWRITE,
|
|
kauth_cred_get());
|
|
}
|
|
|
|
return error;
|
|
}
|