a73b3b19ea
segment holdings against the blocks held by the inodes, but we can still check the cleanerinfo data against the segment table.
196 lines
6.1 KiB
C
196 lines
6.1 KiB
C
/* $NetBSD: pass5.c,v 1.16 2005/04/23 20:21:03 perseant Exp $ */
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/*-
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* Copyright (c) 2000, 2003 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 Konrad E. Schroder <perseant@hhhh.org>.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/buf.h>
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#include <sys/mount.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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#define vnode uvnode
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#include <ufs/lfs/lfs.h>
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#undef vnode
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#include <string.h>
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#include "bufcache.h"
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#include "vnode.h"
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#include "lfs.h"
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#include "fsck.h"
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#include "extern.h"
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#include "fsutil.h"
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extern SEGUSE *seg_table;
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extern off_t locked_queue_bytes;
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void
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pass5(void)
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{
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SEGUSE *su;
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struct ubuf *bp;
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int i;
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unsigned long bb; /* total number of used blocks (lower bound) */
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unsigned long ubb; /* upper bound number of used blocks */
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unsigned long avail; /* blocks available for writing */
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unsigned long dmeta; /* blocks in segsums and inodes */
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int nclean; /* clean segments */
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size_t labelskew;
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int diddirty;
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/*
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* Check segment holdings against actual holdings. Check for
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* "clean" segments that contain live data. If we are only
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* rolling forward, we can't check the segment holdings, but
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* we can still check the cleanerinfo data.
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*/
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nclean = 0;
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avail = 0;
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bb = ubb = 0;
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dmeta = 0;
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for (i = 0; i < fs->lfs_nseg; i++) {
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diddirty = 0;
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LFS_SEGENTRY(su, fs, i, bp);
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if (!preen && !(su->su_flags & SEGUSE_DIRTY) &&
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seg_table[i].su_nbytes > 0) {
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pwarn("%d bytes contained in 'clean' segment %d\n",
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seg_table[i].su_nbytes, i);
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if (reply("dirty segment")) {
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su->su_flags |= SEGUSE_DIRTY;
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++diddirty;
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}
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}
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if (!preen && (su->su_flags & SEGUSE_DIRTY) &&
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su->su_nbytes != seg_table[i].su_nbytes) {
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pwarn("segment %d claims %d bytes but has %d",
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i, su->su_nbytes, seg_table[i].su_nbytes);
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if ((int32_t)su->su_nbytes >
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(int32_t)seg_table[i].su_nbytes)
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pwarn(" (high by %d)\n", su->su_nbytes -
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seg_table[i].su_nbytes);
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else
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pwarn(" (low by %d)\n", -su->su_nbytes +
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seg_table[i].su_nbytes);
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if (reply("fix")) {
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su->su_nbytes = seg_table[i].su_nbytes;
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++diddirty;
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}
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}
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if (su->su_flags & SEGUSE_DIRTY) {
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bb += btofsb(fs, su->su_nbytes +
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su->su_nsums * fs->lfs_sumsize);
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ubb += btofsb(fs, su->su_nbytes +
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su->su_nsums * fs->lfs_sumsize +
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su->su_ninos * fs->lfs_ibsize);
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dmeta += btofsb(fs,
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fs->lfs_sumsize * su->su_nsums);
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dmeta += btofsb(fs,
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fs->lfs_ibsize * su->su_ninos);
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} else {
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nclean++;
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avail += segtod(fs, 1);
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if (su->su_flags & SEGUSE_SUPERBLOCK)
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avail -= btofsb(fs, LFS_SBPAD);
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if (i == 0 && fs->lfs_version > 1 &&
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fs->lfs_start < btofsb(fs, LFS_LABELPAD))
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avail -= btofsb(fs, LFS_LABELPAD) -
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fs->lfs_start;
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}
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if (diddirty)
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VOP_BWRITE(bp);
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else
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brelse(bp);
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}
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/* Also may be available bytes in current seg */
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i = dtosn(fs, fs->lfs_offset);
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avail += sntod(fs, i + 1) - fs->lfs_offset;
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/* But do not count minfreesegs */
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avail -= segtod(fs, (fs->lfs_minfreeseg -
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(fs->lfs_minfreeseg / 2)));
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/* Note we may have bytes to write yet */
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avail -= btofsb(fs, locked_queue_bytes);
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if (idaddr)
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pwarn("NOTE: when using -i, expect discrepancies in dmeta,"
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" avail, nclean, bfree\n");
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if (dmeta != fs->lfs_dmeta) {
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pwarn("dmeta given as %d, should be %ld\n", fs->lfs_dmeta,
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dmeta);
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if (preen || reply("fix")) {
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fs->lfs_dmeta = dmeta;
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sbdirty();
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}
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}
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if (avail != fs->lfs_avail) {
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pwarn("avail given as %d, should be %ld\n", fs->lfs_avail,
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avail);
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if (preen || reply("fix")) {
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fs->lfs_avail = avail;
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sbdirty();
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}
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}
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if (nclean != fs->lfs_nclean) {
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pwarn("nclean given as %d, should be %d\n", fs->lfs_nclean,
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nclean);
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if (preen || reply("fix")) {
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fs->lfs_nclean = nclean;
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sbdirty();
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}
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}
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labelskew = 0;
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if (fs->lfs_version > 1 &&
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fs->lfs_start < btofsb(fs, LFS_LABELPAD))
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labelskew = btofsb(fs, LFS_LABELPAD);
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if (fs->lfs_bfree > fs->lfs_dsize - bb - labelskew ||
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fs->lfs_bfree < fs->lfs_dsize - ubb - labelskew) {
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pwarn("bfree given as %d, should be between %ld and %ld\n",
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fs->lfs_bfree, fs->lfs_dsize - ubb - labelskew,
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fs->lfs_dsize - bb - labelskew);
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if (preen || reply("fix")) {
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fs->lfs_bfree = fs->lfs_dsize - labelskew -
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(ubb + bb) / 2;
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sbdirty();
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}
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}
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}
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