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ufs: fix logics in "ufs: make fsck -f happy"

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Storing stats _only_ at new locations is wrong for UFS1; old
locations should always be kept updated.  The check for "has
been converted to use of new locations" is also wrong - it
should be "->fs_maxbsize is equal to ->fs_bsize".

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2017-06-14 15:17:32 -04:00
parent 67a70017fa
commit 96ecff1422
1 changed files with 28 additions and 13 deletions
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41
fs/ufs/super.c
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@ -480,7 +480,7 @@ static void ufs_setup_cstotal(struct super_block *sb)
usb3 = ubh_get_usb_third(uspi);
if ((mtype == UFS_MOUNT_UFSTYPE_44BSD &&
(usb1->fs_flags & UFS_FLAGS_UPDATED)) ||
(usb2->fs_un.fs_u2.fs_maxbsize == usb1->fs_bsize)) ||
mtype == UFS_MOUNT_UFSTYPE_UFS2) {
/*we have statistic in different place, then usual*/
uspi->cs_total.cs_ndir = fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir);
@ -596,9 +596,7 @@ static void ufs_put_cstotal(struct super_block *sb)
usb2 = ubh_get_usb_second(uspi);
usb3 = ubh_get_usb_third(uspi);
if ((mtype == UFS_MOUNT_UFSTYPE_44BSD &&
(usb1->fs_flags & UFS_FLAGS_UPDATED)) ||
mtype == UFS_MOUNT_UFSTYPE_UFS2) {
if (mtype == UFS_MOUNT_UFSTYPE_UFS2) {
/*we have statistic in different place, then usual*/
usb2->fs_un.fs_u2.cs_ndir =
cpu_to_fs64(sb, uspi->cs_total.cs_ndir);
@ -608,16 +606,26 @@ static void ufs_put_cstotal(struct super_block *sb)
cpu_to_fs64(sb, uspi->cs_total.cs_nifree);
usb3->fs_un1.fs_u2.cs_nffree =
cpu_to_fs64(sb, uspi->cs_total.cs_nffree);
} else {
usb1->fs_cstotal.cs_ndir =
cpu_to_fs32(sb, uspi->cs_total.cs_ndir);
usb1->fs_cstotal.cs_nbfree =
cpu_to_fs32(sb, uspi->cs_total.cs_nbfree);
usb1->fs_cstotal.cs_nifree =
cpu_to_fs32(sb, uspi->cs_total.cs_nifree);
usb1->fs_cstotal.cs_nffree =
cpu_to_fs32(sb, uspi->cs_total.cs_nffree);
goto out;
}
if (mtype == UFS_MOUNT_UFSTYPE_44BSD &&
(usb2->fs_un.fs_u2.fs_maxbsize == usb1->fs_bsize)) {
/* store stats in both old and new places */
usb2->fs_un.fs_u2.cs_ndir =
cpu_to_fs64(sb, uspi->cs_total.cs_ndir);
usb2->fs_un.fs_u2.cs_nbfree =
cpu_to_fs64(sb, uspi->cs_total.cs_nbfree);
usb3->fs_un1.fs_u2.cs_nifree =
cpu_to_fs64(sb, uspi->cs_total.cs_nifree);
usb3->fs_un1.fs_u2.cs_nffree =
cpu_to_fs64(sb, uspi->cs_total.cs_nffree);
}
usb1->fs_cstotal.cs_ndir = cpu_to_fs32(sb, uspi->cs_total.cs_ndir);
usb1->fs_cstotal.cs_nbfree = cpu_to_fs32(sb, uspi->cs_total.cs_nbfree);
usb1->fs_cstotal.cs_nifree = cpu_to_fs32(sb, uspi->cs_total.cs_nifree);
usb1->fs_cstotal.cs_nffree = cpu_to_fs32(sb, uspi->cs_total.cs_nffree);
out:
ubh_mark_buffer_dirty(USPI_UBH(uspi));
ufs_print_super_stuff(sb, usb1, usb2, usb3);
UFSD("EXIT\n");
@ -997,6 +1005,13 @@ again:
flags |= UFS_ST_SUN;
}
if ((flags & UFS_ST_MASK) == UFS_ST_44BSD &&
uspi->s_postblformat == UFS_42POSTBLFMT) {
if (!silent)
pr_err("this is not a 44bsd filesystem");
goto failed;
}
/*
* Check ufs magic number
*/