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/* Pass 1b of fsck
Copyright (C) 1994 Free Software Foundation, Inc.
Written by Michael I. Bushnell.
This file is part of the GNU Hurd.
The GNU Hurd is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
The GNU Hurd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
pass1b ()
{
struct dinode dino;
struct dinode *dp = &dino;
int cg, i;
ino_t number;
int dupblk;
/* Check each block of file DP; if the block is in the dup block
list then add it to the dup block list under this file.
Return RET_GOOD or RET_BAD if the block is
good or bad, respectively. */
int
checkblock (daddr_t bno, int nfrags)
{
struct dups *dlp;
for (nfrags; nfrags > 0; bno++, nfrags--)
{
if (chkrange (blkno, 1))
return RET_BAD;
for (dlp = duphead; dlp; dlp = dlp->next)
{
if (dlp->dup == blkno)
{
if (!dupblk)
printf ("I=%lu HAD DUPLICATE BLOCKS\n", number);
dupblk = 1;
printf ("DUPLICATE BLOCK %d\n", bno);
dlp->dup = duphead->dup;
duphead->dup = blkno;
duphead = duphead->next;
}
if (dlp == muldup)
break;
}
if (muldup == 0 || duphead == muldup->next)
return RET_BAD;
}
return RET_GOOD;
}
/* Call CHECKBLOCK for each block of each node, to see if it holds
a block already found to be a duplicate. */
for (cg = 0; cg < sblock.fs_ncg; cg++)
for (i = 0; i < sblock.fs_ipg; i++, number++)
{
if (number < ROOTINO)
continue;
if (statemap[inumber] != UNALLOC)
{
getinode (number, dp);
dupblk = 0;
allblock_iterate (dp, checkblock);
}
}
}
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