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Fix "lfs_ifind: dinode xxx not found" panic. When inodes were freed, 

then immediately reloaded, their dinodes were located in an inode block
which was not on disk at the advertized location, nor in the cache (although
it would be flushed to disk next segment write).  Fix this by using getblk()
instead of lfs_newbuf() for inode blocks.
This commit is contained in:
perseant 1999-04-12 00:04:21 +00:00
parent 97c6743666
commit 7221719dc7
1 changed files with 9 additions and 3 deletions
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12
sys/ufs/lfs/lfs_segment.c
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@ -1,4 +1,4 @@
/* $NetBSD: lfs_segment.c,v 1.23 1999/03/30 16:11:43 perseant Exp $ */
/* $NetBSD: lfs_segment.c,v 1.24 1999/04/12 00:04:21 perseant Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
@ -634,6 +634,7 @@ lfs_writeinode(fs, sp, ip)
int error, i, ndx;
int redo_ifile = 0;
struct timespec ts;
int gotblk=0;
if (!(ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_MODIFIED | IN_UPDATE | IN_CLEANING)))
return(0);
@ -649,8 +650,9 @@ lfs_writeinode(fs, sp, ip)
daddr = fs->lfs_offset;
fs->lfs_offset += fsbtodb(fs, 1);
sp->ibp = *sp->cbpp++ =
lfs_newbuf(VTOI(fs->lfs_ivnode)->i_devvp, daddr,
fs->lfs_bsize);
getblk(VTOI(fs->lfs_ivnode)->i_devvp, daddr, fs->lfs_bsize, 0, 0);
gotblk++;
/* Zero out inode numbers */
for (i = 0; i < INOPB(fs); ++i)
((struct dinode *)sp->ibp->b_data)[i].di_inumber = 0;
@ -679,6 +681,10 @@ lfs_writeinode(fs, sp, ip)
bp = sp->ibp;
((struct dinode *)bp->b_data)[sp->ninodes % INOPB(fs)] =
ip->i_din.ffs_din;
if(gotblk) {
bp->b_flags |= B_LOCKED;
brelse(bp);
}
/* Increment inode count in segment summary block. */
++((SEGSUM *)(sp->segsum))->ss_ninos;