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Write update some old fields when writing the superblock, similar to 

ffs_oldfscompat_write() in the kernel. Use the old totals when
time < old_time (i.e. an old kernel or fsck wrote the filesystem last).
When setting the date back on a new kernel, that works out ok, since
new kernels always update both fields.
This commit is contained in:
fvdl 2003-04-06 17:23:25 +00:00
parent 508f668a25
commit 750ed85d47
4 changed files with 41 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
sbin/fsck_ffs/extern.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: extern.h,v 1.16 2003/04/02 10:39:25 fvdl Exp $ */
/* $NetBSD: extern.h,v 1.17 2003/04/06 17:23:25 fvdl Exp $ */
/*
* Copyright (c) 1994 James A. Jegers
@ -82,3 +82,4 @@ void voidquit __P((int));
void swap_cg __P((struct cg *, struct cg *));
void copyback_cg __P((struct bufarea *));
void sb_oldfscompat_write(struct fs *);

5
sbin/fsck_ffs/fsck.h
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@ -1,4 +1,4 @@
/* $NetBSD: fsck.h,v 1.32 2003/04/02 10:39:25 fvdl Exp $ */
/* $NetBSD: fsck.h,v 1.33 2003/04/06 17:23:25 fvdl Exp $ */
/*
* Copyright (c) 1980, 1986, 1993
@ -144,8 +144,9 @@ struct cg *cgrp;
#define sbdirty() \
do { \
memmove(sblk.b_un.b_fs, sblock, SBLOCKSIZE); \
sb_oldfscompat_write(sblk.b_un.b_fs); \
if (needswap) \
ffs_sb_swap(sblock, sblk.b_un.b_fs); \
ffs_sb_swap(sblk.b_un.b_fs, sblk.b_un.b_fs); \
sblk.b_dirty = 1; \
} while (0)
#define cgdirty() do {copyback_cg(&cgblk); cgblk.b_dirty = 1;} while (0)

24
sbin/fsck_ffs/setup.c
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@ -1,4 +1,4 @@
/* $NetBSD: setup.c,v 1.59 2003/04/05 13:45:21 fvdl Exp $ */
/* $NetBSD: setup.c,v 1.60 2003/04/06 17:23:26 fvdl Exp $ */
/*
* Copyright (c) 1980, 1986, 1993
@ -38,7 +38,7 @@
#if 0
static char sccsid[] = "@(#)setup.c 8.10 (Berkeley) 5/9/95";
#else
__RCSID("$NetBSD: setup.c,v 1.59 2003/04/05 13:45:21 fvdl Exp $");
__RCSID("$NetBSD: setup.c,v 1.60 2003/04/06 17:23:26 fvdl Exp $");
#endif
#endif /* not lint */
@ -696,17 +696,25 @@ out:
/*
* If not yet done, update UFS1 superblock with new wider fields.
*/
if (sblock->fs_magic == FS_UFS1_MAGIC &&
sblock->fs_maxbsize != sblock->fs_bsize) {
if (sblock->fs_magic == FS_UFS1_MAGIC) {
if (sblock->fs_maxbsize != sblock->fs_bsize ||
sblock->fs_time < sblock->fs_old_time) {
sblock->fs_cstotal.cs_ndir =
sblock->fs_old_cstotal.cs_ndir;
sblock->fs_cstotal.cs_nbfree =
sblock->fs_old_cstotal.cs_nbfree;
sblock->fs_cstotal.cs_nifree =
sblock->fs_old_cstotal.cs_nifree;
sblock->fs_cstotal.cs_nffree =
sblock->fs_old_cstotal.cs_nffree;
}
if (sblock->fs_maxbsize != sblock->fs_bsize) {
sblock->fs_maxbsize = sblock->fs_bsize;
sblock->fs_time = sblock->fs_old_time;
sblock->fs_size = sblock->fs_old_size;
sblock->fs_dsize = sblock->fs_old_dsize;
sblock->fs_csaddr = sblock->fs_old_csaddr;
sblock->fs_cstotal.cs_ndir = sblock->fs_old_cstotal.cs_ndir;
sblock->fs_cstotal.cs_nbfree = sblock->fs_old_cstotal.cs_nbfree;
sblock->fs_cstotal.cs_nifree = sblock->fs_old_cstotal.cs_nifree;
sblock->fs_cstotal.cs_nffree = sblock->fs_old_cstotal.cs_nffree;
}
}
/* Now we know the SB is valid, we can write it back if needed */

17
sbin/fsck_ffs/utilities.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: utilities.c,v 1.36 2003/04/02 10:39:27 fvdl Exp $ */
/* $NetBSD: utilities.c,v 1.37 2003/04/06 17:23:26 fvdl Exp $ */
/*
* Copyright (c) 1980, 1986, 1993
@ -38,7 +38,7 @@
#if 0
static char sccsid[] = "@(#)utilities.c 8.6 (Berkeley) 5/19/95";
#else
__RCSID("$NetBSD: utilities.c,v 1.36 2003/04/02 10:39:27 fvdl Exp $");
__RCSID("$NetBSD: utilities.c,v 1.37 2003/04/06 17:23:26 fvdl Exp $");
#endif
#endif /* not lint */
@ -643,3 +643,16 @@ inoinfo(ino_t inum)
return (&unallocated);
return (&ilp->il_stat[iloff]);
}
void
sb_oldfscompat_write(struct fs *fs)
{
if (fs->fs_magic != FS_UFS1_MAGIC)
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;
}